1,722 constituents starting with O

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• PIC ID Name
• 329460 Optical Film Engineering Co. (American, active 1950s)
• 329461 Optical Radiation Corp. (American, active 1980s)
• 329462 Optics Manufacturing Corp. (American, active 1950s)
• 329463 Optics Plus, Inc. (American, active 1980s)
• 329464 Optigraph Company (American, active 1910s)
• 329465 Optikon Scientific Co. (American, active 1960s)
• 329466 Optikos Corp. (American, active 1980s)
• 329467 Optikotechna (Czechoslovakian, active 1930s-1930s)
• 329468 Optique et Précision de Levallois S. A. (French, active 1940s)
• 340507 Optisonics (American, active 1980s)
• 329469 Optivision International (American, active 1960s)
• 329473 Optochrom GmbH (German, active 1930s)
• 329472 Opto/Graphics, Inc. (American, active 1970s)
• 329470 Opto Mechanik, Inc. (American, active 1990s)
• 329471 Opto Mechanisms, Inc. (American, active 1950s)
• 303632 Opton, Suzanne (American, born 1945)
• 329474 Optronic Kinetics (Australian, active 1971-)
• 386328 Oral, Can (German, born 1965)
• 303633 Oramas, Sandro (Venezuelan, born 1955)
• 369034 Oram, Zachariah (American, active 1850s)
• 303634 Orange, J. (English, active 1900s)
• 391378 Oratofsky, Paul (American, active 2000s)
• 340508 Oray (French, active 1960s)
• 303636 Orban, Ludvig (active 1920s)
• 303637 Orban, Paul (Belgian, active 1870s-1900s)
• 303638 Orban, Thierry (active 20th century)
• 369035 Orbeton, William S. (American, active 1850s)
• 329475 Orbit Marketing Co. (American, active 1970s)
• 303640 Orbock, David (Canadian, active 1990s)
• 303641 Orchard, Elizabeth Margaret (English, 1834-1894)
• 344585 Orchard, Emily V. (American, active 1860s)
• 303642 Orchard, F. P. (active 1920s-1930s)
• 402556 Orchard, Harry E. (American, died 1897)
• 303643 Orchard, Sarah Ann (English, 1814-1869)
• 303644 Orcutt, Kendra (American, born 1961)
• 369036 Orcutt, S. (American, active 1850s)
• 303645 Ordeman, Les Thomas (American, ca. 1907-1991)
• 25613 Ording, Carl P. (American, born ca. 1870)
• 329476 Ordish & Co., T. (English, active 1860s)
• 303646 Ordish, Thomas (English, 1821-1899)
• 375207 Ordish, William (English, 1823-1913)
• 329477 Ordnance Survey (active 1860s)
• 6641 Orduña (Mexican, active 1950s)
• 365543 Ordway, Albert G. (American, 1843-1897)
• 369037 Ordway, Alfred (American, active 1840s-1860s)
• 303647 Ordway, Charles E. (American, active 1890s)
• 355351 Ordway's Photo Service (American, active 1940s)
• 385641 O'Rear, Charles (American, born 1941)
• 303648 O'Rear, Lewis H. (American, active 1900s)
• 360674 Orebaugh, Oscar W. (American, active 1940s)
• 369038 Ore, Caleb A. (American, active 1840s-1850s)
• 385832 O'Regan, Denis (British, born 1953)
• 369014 O'Regan, M. (American, active 1850s)
• 329478 Oregon Art Co. (American, active 1910s)
• 387213 O'Reilly, Finbarr (Canadian, born 1971)
• 3341 O'Reilly, John (American, born 1930)
• 303649 O'Reilly, John F. (American, active 1930s-1940s)
• 303650 O'Reilly, L. (American, active 1890s)
• 374811 O'Reilly, Stephen (Irish, born 1852)
• 375076 O'Reilly, Walter Philip (English, 1847-1919)
• 386296 Orel, Boris (Slovene, 1903-1962)
• 412830 Orellana, René (Chilean, active 1940s)
• 412249 Orellano, Erasmo (Chilean, active 1910s-1920s)
• 303651 Orendorf, Byron (American, active 1940s)
• 351866 Oren, E. O. (American, born 1868)
• 303652 Orenstein, Irving (American, active 1970s)
• 360675 Orenstein, Jack E. (American, active 1940s)
• 303653 Orent, Joel (American, born 1930)
• 303654 Orford, June (active 2000s)
• 303655 Orgain, Martha Loving (American, born 1953)
• 303656 Organ, George Edward (English, born 1872)
• 303657 Organ, Richard (English, born 1879)
• 303658 Organ, Tom (Scottish, active 1910s-1920s)
• 303659 Orglmeister, Gustav (Austrian, active 1900s)
• 372227 Oriel, Charles Frederick (English, 1853-1886)
• 329479 Oriel Corp. of America (American, active 1970s)
• 329481 Oriental Photo Industrial Co., Ltd. (Japanese, active 1919-)
• 329480 Orient Studio (active 1910s)
• 336650 Origet, Emmanuel (active 1890s)
• 408564 Original Michigan View Co., The (American, active 1890s)
• 329483 Original Portrait Copying Co. (British, active 19th century)
• 329484 Origoni Filli (Italian, active 1890s)
• 303660 Origuchi, John M. (American, born 1955)
• 387915 Orihara, Kei (Japanese, born 1948)
• 303661 Orimoto, Tatsumi (Japanese, born 1946)
• 303662 Oriola, Jose Miguel (Spanish, born 1943)
• 303663 Oriola, Marie, Comtesse (German, active 1890s-1900s)
• 353944 Oriole, P. F. (American, active 1940s)
• 303664 Orioli, Maria (Italian, active 1960s)
• 385519 Orion, Alexandre (Brazilian, born 1978)
• 329485 Orion Pictures Corp. (American, active 1980s-1990s)
• 329486 Orion-Werk AG (German, active 1920s)
• 360676 Orisek, Joseph (American, active 1940s)
• 303665 Orive, María Cristina (Guatemalan, 1931-2017)
• 303666 Orkin, Gerry (Australian, born 1955)
• 2529 Orkin, Ruth (American, 1921-1985)
• 303667 Orlan (French, born 1947)
• 336651 Orlandini, Pellegrino (Italian, 1843-1910)
• 336652 Orlandis Dura, Lisardo (active 1920s)
• 303669 Orlando, Max (Cuban, born 1957)
• 303670 Orlando, Philip D. (American, active 1940s)
• 2021 Orland, Ted (American, born 1941)
• 303671 Orlich, Richard (German, active 1890s)
• 303672 Orlinsky, Walter S. (American, 1938-2002)
• 303673 Orloff, A. (Australian, 1891-1983)
• 303674 Orloff, Alexander (American, born 1945)
• 387582 Orloff, Izzy (Australian, 1891-1983)
• 303675 Orlopp, Detlef (German, born 1937)
• 303676 Orlove, Mark (American, born 1950)
• 371454 Orlov, Nikolai (Russian, born ca. 1831)
• 13632 Orlovsky, Peter (American, 1933-2010)
• 303677 Orlowski, M. (Russian, active 1920s)
• 304114 Orman, A. (Scottish, active 1920s)
• 304115 Orman, Helen (American, born 1938)
• 360677 Orman, William A. (American, active 1940s)
• 411875 Ormazabal, Alamiro (Chilean, active 1900s)
• 373446 Orme, Henry (English, 1841-1920)
• 373603 Orme, Herbert Howard (English, 1872-1936)
• 304116 Ormerod, A. D. (English, active 1930s)
• 336711 Orme, Wilfrid H. (American, active 1920s)
• 372319 Ormiston, Charlotte Louisa (English, born 1861)
• 304117 Ormsbee, Alexander F. (active 1890s)
• 304118 Ormsbee, Allen (active 1890s)
• 369039 Ormsbee, Augustus (American, active 1840s)
• 304119 Ormsbee, H. W. (American, active 1890s)
• 406085 Ormsbee, Mabel, Miss (American, born 1870)
• 304120 Ormsbee, Marcus (American, active 1840s-1860s)
• 3951 Ormsbee & Pine (American, active 1860s)
• 364839 Ormsbee & Silsbee (American, active 1840s)
• 369040 Ormsbee, Talcott (American, active 1850s)
• 304121 Ormsby, Alexander F. (American, active 1890s)
• 304122 Ormsby, Allan (American, active 1890s)
• 19367 Ormsby, Elon Delamore (American, ca. 1844-1895)
• 329582 Ormsby & Fredrickson (American, active 1880s)
• 304124 Ormsby, John H. (American, active 1900s)
• 350482 Ormsby, Milton M. (American, active 1900s)
• 3837 Ormsby, Sanderson Woodruff (American, 1874-1929)
• 329583 Ornamental Mirror Co. (American, active 1870s)
• 304126 Ornano, Alfredo (Italian, 1880-1955)
• 304127 Orndorff, Beverly (American, active 1960s)
• 9301 Orne, Harold I. (American, born 1890)
• 387616 Ørnelund, Leif (Norwegian, 1914-1992)
• 349934 Orninggaard, N. S. (American, active 1890s)
• 2022 Ornitz, Don (American, 1920-1972)
• 304129 Ornsteen, A. M., Dr. (American, active 1940s)
• 304125 Orn, W. A. (English, active 1890s)
• 304130 Oros, Joseph (Australian, active 1970s)
• 389529 Orosquette, Marie-Claude (French, born 1967)
• 342560 O'Rourke, Daniel H. (American, active 1920s)
• 353946 O'Rourke, Eugene F. (American, active 1940s)
• 372843 O'Rourke, Francis (Jamaican, born 1869)
• 304131 O'Rourke, George H. (American, active 1920s-1940s)
• 353947 O'Rourke, James Howard (American, active 1940s)
• 304132 O'Rourke, Phil (American, active 1940s)
• 369015 O'Rourke, Thomas (American, active 1850s)
• 304133 O'Rourke, William (American, 1906-1993)
• 1162 Orozco, Gabriel (Mexican, born 1962)
• 391521 Orozco, Ruben (American, active 2000s)
• 68202 Oroz, Steve (American, born 1917)
• 353948 Orpin, Arthur Wellington (American, 1879-1966)
• 387988 Orpinell, Jaume (Spanish, born 1954)
• 304134 Orr, A. F. (American, active 1910s)
• 304135 Orr, Alexander Jr. (American, active 1860s-1870s)
• 8600 Orr, A., & Son (American, active 1870s)
• 329584 Orr & Co., Edgar (American, active 1940s)
• 304136 Orr, Edgar Harold (American, 1892-1968)
• 369041 Orr, George (American, active 1860s)
• 304137 Orr, H. Scott (English, active 1910s)
• 304143 Orrin, Harry (English, active 1900s-1910s)
• 343856 Orr, John P. (American, active 1860s)
• 304138 Orr, J. Stephens (Scottish, active 1940s-1950s)
• 4148 Orr-Kiefer (American, active 1900s-1920s)
• 304139 Orr, Peter (English, active 1900s-1910s)
• 304140 Orr, R. Dundas, Mrs. (American, active 1910s)
• 404287 Orr, Robert (American, born 1857)
• 304141 Orr, Samuel C. (American, 1845-1920)
• 390497 Orr, Stephens (British, died 1990)
• 329585 Orr Studio (American, active 1920s)
• 304142 Orr, Susan (American, active 1980s)
• 304144 Orsenigo, Fulvio (Italian, born 1961)
• 304145 Orser, Julie (active 2000s)
• 336713 Orser, Merwyn C. (American, active 1930s)
• 336714 Orsi, Arrigo (Italian, active 1950s)
• 304146 Orsi, Carlo (Italian, active 1960s)
• 372080 Orsich, C. Charles (Austrian, 1825-1897)
• 372168 Orsich, Charles (English, 1856-1923)
• 304147 Ortalda, Carlo (Italian, active 1930s)
• 304148 Ortega, A. de P. (Mexican, active ca. 1890s)
• 304149 Ortega, Ana Teresa (Spanish, born 1952)
• 304150 Ortega, Damián (Mexican, born 1967)
• 304151 Ortega, Fernando (Mexican, born 1971)
• 304152 Ortega, Raul (Mexican, born 1963)
• 304153 Ortenberg, Jill (active 20th century)
• 369042 Orten, C. (American, active 1850s)
• 369043 Orten, J. G. (American, active 1850s)
• 344986 Orthman (American, active 1860s)
• 304154 Orthman, Walter (Australian, active 1920s-1930s)
• 391154 Ortiz, Alice (American, active 2000s)
• 385731 Ortiz, Carlos Javier (American, born 1975)
• 379521 Ortiz, Cruz (American, born 1972)
• 379522 Ortiz, Diego (Argentine, active 2000s)
• 304160 Ortiz-Echagüe, José (Spanish, 1886-1980)
• 390130 Ortiz, Gumersindo (Spanish, 1830-1880)
• 304158 Ortiz, Jorge (Colombian, born 1948)
• 304155 Ortiz Lara, Luis (Spanish, born 1943)
• 304159 Ortiz, Luna Luis (American, active 1990s)
• 412712 Ortiz, M. (Chilean, active 1930s-1940s)
• 263942 Ortiz Monasterio, Pablo (Mexican, born 1952)
• 304157 Ortiz Torres, Rubén Dario (Mexican, born 1964)
• 401347 Ortmann, Arno Emerich F. (American, 1893-1975)
• 404371 Ortmann, Ernest R. H. (American, born 1858)
• 304161 Ortmans, Clément (Belgian, active 1900s-1910s)
• 304162 Ortmans, Emile (Belgian, active 1890s-1900s)
• 360679 Ortner, Glen E. (American, active 1940s)
• 387937 Ortner, Jon (American, born 1951)
• 304163 Ortner-Röhr, Lotti (German, born 1932)
• 360680 Orton, Emory O. (American, active 1940s)
• 304164 Orton, E. P. (English, active 1930s)
• 304165 Orton, J. M. (active 1900s)
• 304166 Orton, T. (English, active 1890s)
• 304167 Orton, William H. (Portuguese, active 1930s)
• 413128 Ortúzar, Ramón (Chilean, born 1914)
• 336712 Orushkes, Zvi (Israeli, 1888-1980)
• 304168 Orville, Richard E. (American, active 1960s)
• 369044 Orvis, D. H. (American, active 1850s)
• 7653 Orvis, Franklin H. (American, born 1824)
• 369046 Orvis, James K. (American, active 1860s)
• 369045 Orvis, James R. (American, 1822-1910)
• 418238 Orvis, O. D., & Co. (American, active 1870s)
• 343898 Orwin, L. W. (American, active 1860s)
• 410227 Ory, Fortunato (Brazilian, active 1860s)
• 340528 Orynowsky (Polish, active 1930s)
• 304169 Orzio, Nicholas (American, born ca. 1928)
• 360681 Orzulak, Stephen (American, active 1940s)
• 304170 Osaka, Hiroshi (Japanese, active 1980s)
• 304171 Osaki, M. J. (American, active 1920s)
• 304172 Osako, S. (Japanese, active 1920s)
• 304174 Osann, N. (American, active 1920s)
• 304175 Osata, S. (American, active 1900s-1910s)
• 304176 Osbahr, Howard W. (American, active 1940s)
• 405430 Osband, Meda L., Miss (American, born 1866)
• 404963 Osband, William W. (American, born 1861)
• 336717 Osbon, Cal (American, active 1890s-1900s)
• 360682 Osborn, A. L. (American, active 1940s)
• 304178 Osborn, Ambrose Joshua (American, born 1870)
• 407333 Osborn, Byron (American, active 1880s)
• 402805 Osborn, Calvin M. (American, born 1830)
• 372169 Osborn, Charles (English, 1848-1912)
• 360683 Osborn, Charles F. (American, active 1940s)
• 304179 Osborn, Charles Riccard (American, active 1960s)
• 372338 Osborn, Clarence Charles (English, born 1860)
• 405487 Osborn, Clarence R. (American, 1867-1950)
• 402205 Osborn, David L. (American, active 1920s)
• 7984 Osborn, Dwight C. (American, born ca. 1835)
• 408565 Osborne, Albert G. (American, active 1890s)
• 369053 Osborne, Albert W. (American, active 1850s)
• 371958 Osborne, Arthur (English, 1855-1901)
• 304185 Osborne, A. S. (American, active 1900s)
• 410017 Osborne, A. W. (Brazilian, active 1850s-1860s)
• 349935 Osborn, Eben L. (American, active 1890s)
• 369048 Osborn, Edward (American, active 1850s-1860s)
• 342865 Osborn, Edward M. (American, active 1860s)
• 369054 Osborne, Edmund O. (American, active 1850s)
• 349936 Osborne, Edward (American, active 1890s)
• 304186 Osborne, Edward P. (American, 1857-1942)
• 355125 Osborne, E. Maryette, Miss (American, active 1940s)
• 304187 Osborne, Eric R. (American, active 1940s)
• 360686 Osborne, Eugene A. (American, active 1940s)
• 369055 Osborne, George W. (American, active 1850s)
• 304188 Osborne, G. K. (active 1920s)
• 304189 Osborne, Guy E. (American, active 1920s)
• 304190 Osborne, H. G. M. (English, active 1930s)
• 369056 Osborne, H. P. (American, active 1860s)
• 363567 Osborne, James M. (American, active 1850s)
• 369057 Osborne, John (American, born ca. 1830)
• 304191 Osborne, John Walter (American, active 1860s)
• 304192 Osborne, Li (German, 1883-1968)
• 360687 Osborne, L. S. (American, active 1940s)
• 304180 Osborn, E. M. (American, active 1850s-1860s)
• 304193 Osborne, Madeline (active 1940s)
• 304194 Osborne, Mr. (English, active 1850s)
• 355352 Osborne & O'Hagan (American, active 1940s)
• 369047 Osborn, E. P. (American, active 1860s)
• 329586 Osborne Photographers (American, active 1950s)
• 304195 Osborne, Ralph (American, active 1920s-1930s)
• 408566 Osborne, R. E. (American, active 1890s)
• 304196 Osborne, Robert (American, active 1930s-1940s)
• 360688 Osborne, Robert G. (American, active 1940s)
• 360689 Osborne, Robert H. (American, active 1940s)
• 355880 Osborn, E. S. (American, active 1900s-1910s)
• 362766 Osborne, Samuel Ray (American, active 1940s)
• 304197 Osborne, S. J. (English, active 1940s)
• 304198 Osborne, S. W. (British, active 1860s)
• 304199 Osborne, T. C. (American, active 1890s)
• 304201 Osborne, Walter D. (American, 1918-1972)
• 375209 Osborne, William (English, 1820-1877)
• 304200 Osborne, William D. (American, ca. 1840-1892)
• 375365 Osborne, William Henry (English, born 1876)
• 364840 Osborne & Woolley (American, active 1850s)
• 405491 Osborn, Frederick E. (American, 1867-1959)
• 402279 Osborn, George B. (American, active 1870s-1880s)
• 403360 Osborn, Harriet A., Mrs. (American, 1844-1901)
• 360684 Osborn, Henry J. (American, active 1940s)
• 365372 Osborn, J. (American, active 1850s)
• 369049 Osborn, J. N. (American, active 1860s)
• 356283 Osborn, J. Q. (American, active 1880s)
• 304181 Osborn, Kevin (American, born 1951)
• 353950 Osborn, L. E. (American, active 1940s)
• 369050 Osborn, Oscar (American, active 1860s)
• 360685 Osborn, Ralph R. (American, active 1940s)
• 369051 Osborn, Smith (American, active 1850s)
• 356718 Osborn's Photo Studio (American, active 1900s-1910s)
• 343672 Osborn, Sr., Henry P. (American, active 1860s)
• 407334 Osborn, Thomas C. (American, active 1880s)
• 403438 Osborn, Thomas S. (American, 1845-1922)
• 357017 Osborn, Walter Thurman (American, active 1910s-1920s)
• 304182 Osborn, W. B. (English, active 1890s)
• 304184 Osborn, Wes (American, active 1950s)
• 304183 Osborn, Willard Miner (American, died 1947)
• 369052 Osborn, William (American, active 1850s)
• 375208 Osborn, William (English, 1830-1910)
• 343332 Osborn, William, & Baker (American, active 1860s)
• 375364 Osborn, William Henry (English, 1826-1904)
• 349389 Osborn, W. L. (American, active 1880s)
• 407335 Osborn, W. P. (American, active 1880s)
• 360690 Osbrink, Wendell (American, active 1940s)
• 344272 Osburn, Eli & E. (American, active 1860s)
• 353951 Osburn, Laura Schley (American, active 1940s)
• 377199 Osburn, William B. Dr. (American, active 1850s)
• 409985 Oscar & Alfredo (Brazilian, active 1870s)
• 304203 Oscar, Barts (Hungarian, active 1960s)
• 304204 Oschatz, Walter (German, active 1930s)
• 411180 Osen, Arve (Norwegian, active 1980s)
• 414258 Osenberg, A. (American, active 1930s)
• 353952 Osesek, Stanley F. (American, active 1940s)
• 360691 Osgood, C. H. (American, active 1940s)
• 304205 Osgood, Charles (American, born 1941)
• 329588 Osgood & Co., James R. (American, active 1870s)
• 304206 Osgood, Ernest F. (American, active 1890s-1900s)
• 369058 Osgood, Fred A. (American, active ca. 1840s-1860s)
• 304207 Osgood, G. D. (active 1910s)
• 7245 Osgood, George S. (American, born 1855)
• 8474 Osgood, Henry W. (American, born 1842)
• 304208 Osgood, H. L. (American, active 1860s)
• 304209 Osgood, Rachel M. (American, active 1940s)
• 369059 Osgood, Robert T. (American, active 1860s)
• 7248 Osgood, Zenas B. (American, 1847-1912)
• 376038 O'Shannessy, Emily (Australian, died 1921)
• 304211 O'Shaughnessy, John J. (American, active 1940s)
• 304212 O'Shaughnessy, Michael (American, born 1940)
• 304213 O'Shaunberry, J. (Australian, active 1880s)
• 304214 O'Shea, Terry (American, born 1941)
• 388800 O'Shea, Tony (Irish, born 1947)
• 304215 Oshima, Kazuko (Japanese, 1942-2007)
• 336718 Oshiro, Dean (American, active 1980s)
• 329589 Oshiro Optical Works (Japanese, active 1950s)
• 414010 Oshrin, B., & Bro. (American, active 1930s)
• 3294 Osinski, Christine (American, born 1948)
• 389603 Oskouei, Mehrdad (Iranian, born 1969)
• 304216 Osler, A. C. (American, active 1920s)
• 304217 Osler, W. F. (American, active 1870s)
• 353953 Oslund, Ella, Mrs. (American, active 1940s)
• 304218 Osmachkin, Sergei (Russian, born 1961)
• 304219 Osman, Colin (British, 1926-2002)
• 386621 Osman, Habib (Tunisian, 1910-1986)
• 405335 Osmialowski, Vincent (American, born 1865)
• 350483 Osmunson, O. A. (American, active 1900s)
• 387243 Osodi, George (Nigerian, born 1974)
• 304220 Osoha, Laszlo (active 1930s)
• 340531 Osram (English, active 1920s)
• 329590 Osram GmbH (German, active 1960s)
• 411497 Ossa, Eugenio (Chilean, 1891-1945)
• 329591 Ossen Photo Supply Co. (American, active 1910s)
• 336719 Osser, Sidney (American, active 1930s)
• 329592 Osservatorio Meteorologico di Potsdam (active 1890s)
• 418371 Ossest, Emile (American, born ca. 1828)
• 304221 Osso, Patrick (American, active 1950s)
• 353954 Ossowski, W. J. (American, active 1940s)
• 304222 Osswald, Inge (German, born 1938)
• 304223 Ost, Adolphe (Austrian, active 1850s-1870s)
• 304224 Ostberg, Carl J. (active 1890s)
• 411412 Østby, Arvid (Norwegian, died 1974)
• 1530 Osterburg, Lothar (German, born 1961)
• 68139 Ostergaard, Martin P. (American, 1896-1978)
• 404917 Ostergren, Carrie L., Mrs. (American, 1861-1933)
• 404127 Ostergren, George A. (American, born ca. 1855)
• 304226 Osterheld, Wolfgang (Luxembourger, born 1948)
• 304227 Osterholm, T. W. (American, active 1950s-1960s)
• 52500 Osterhoudt, Harvey John (American, born 1948)
• 369060 Osterhout, Jeremiah (American, active 1850s)
• 369061 Osterhout, Stephen H. (American, active 1850s)
• 356722 Osterhout Studio (American, active 1920s)
• 304229 Osterloff, Edmund (Polish, 1863-1938)
• 304230 Ostermaier, Josef (German, active 1900s)
• 349937 Osterman, Claus (American, active 1890s)
• 304231 Osterman, France Scully (American, born 1956)
• 304232 Osterman, Friedrich (German, active 1986-1987)
• 304233 Osterman, Mark (American, born 1955)
• 304234 Osterman, Willie (American, born 1955)
• 304235 Ostermeier, Johannes B. (German, active 1920s)
• 360693 Ostermeier, Paul M. (American, active 1940s)
• 304236 Osterndorff, Edward R. (American, active 1930s)
• 360692 Oster, Peter (American, active 1940s)
• 336720 Österreich, Hildegard (German, active 1900s)
• 304237 Ostertag, George A. (American, active 1940s-1940s)
• 345126 Oster, Valentine (American, active 1850s-1860s)
• 304238 Osthaus, Carl (American, active 1910s)
• 304240 Ostheimer, Andy (active 1990s)
• 304241 Osthoff, Federico (Spanish, active 1930s)
• 304243 Ostiboe, Peter J. (American, active 1890s)
• 304244 Ostier, André (French, 1906-1994)
• 19368 Osti, Henri (Swedish, 1826-1914)
• 390695 Östlind, Olle (Swedish, 1938-2008)
• 386254 Östling, Brutus (Swedish, born 1958)
• 360694 Ostlund, Gertrude C. (American, active 1940s)
• 304245 Ostoja-Kotkowski, Stanislaus (Australian, 1922-1994)
• 355716 Ostore, C. (American, active 1880s)
• 384674 Ostoya, Anna (Polish, born 1978)
• 3924 Ostrander, Harry Clarke (American, 1869-1957)
• 369062 Ostrander, J. E. (American, active 1850s)
• 369063 Ostrander, John E. (American, died 1849)
• 401345 Ostrander, Roy Glenn (American, 1893-1973)
• 329594 Ostrander-Seymour Co. (American, active 1940s)
• 411157 Østrem, Bjørn (Norwegian, active 1960s)
• 353955 Ostroff, Anthony A. (American, active 1940s)
• 304246 Ostroff, Eugene (American, 1928-1999)
• 348799 Ostrom, Christian Johan (American, 1865-1947)
• 304247 Ostrom, Edward, Jr. (American, born ca. 1881)
• 351602 Ostrom, Elsie F. (American, active 1940s)
• 17490 Ostroumov, P. (Russian, active 1890s)
• 304248 Ostrovskaya, Rita (Ukrainian, born 1953)
• 304249 Ostrovskiy, Alexey (Russian, active 1990s)
• 391082 Ostrovsky, Gene (American, active 2000s)
• 304250 Ostrovsky, Tzachi (Israeli, born 1945)
• 336721 Ostrov, Yegor (Russian, active 1990s)
• 304252 Ostrum, M. F. (American, active 1970s)
• 304253 O'Sullivan, Andy (American, active 1980s)
• 304254 O'Sullivan, Hank (American, active 1980s)
• 304255 O'Sullivan, P. Michael (American, 1940-2004)
• 304256 O'Sullivan, Stuart (American, born 1971)
• 304257 O'sullivan, Tim (born 1959)
• 1719 O'Sullivan, Timothy H. (American, 1840-1882)
• 304258 O'Sullivan, Vivienne Hanh (American, active 1980s)
• 340532 Osuna (Mexican, active 1930s)
• 411463 Oswald, Carlos (Chilean, 1868-1926)
• 349564 Oswald, Charles Otto (American, 1859-1940)
• 349565 Oswald, Emil C. (American, active 1880s-1890s)
• 353956 Oswald, Grant R. (American, active 1940s)
• 336722 Oswald, J. Clyde (American, active 1890s)
• 304259 Oswald, John W. (American, 1842-ca. 1926)
• 404128 Oswald, Samuel T. (American, born ca. 1855)
• 404964 Oswalt, Milton Edward (American, born 1861)
• 360695 Oswianski, S. T. (American, active 1940s)
• 304260 Ösz, Gabor (Hungarian, born 1962)
• 329162 O. T. A. G. (Austrian, active 1920s)
• 329595 Otago School of Photography (New Zealander, active 1860s)
• 304261 Ota Goshi (Japanese, born 1971)
• 304262 Ota, Kenji (Brazilian, born 1952)
• 304416 Otake, Shooji (Japanese, 1920-2015)
• 336739 Otaki, Eiju (Japanese, born 1932)
• 336723 Ota, Kumezo (active 1920s-1930s)
• 412373 Oteiza, Ana (Chilean, active 1920s)
• 304417 Oteri, Giacomo (Australian, active 1980s)
• 386213 Otero, Cristina (Spanish, born 1995)
• 304418 Otero, E. (Spanish, active 1870s-1900s)
• 412995 Otero, Guillermo (Chilean, active 1940s-1950s)
• 304419 Otero, Jorge (American, born 1943)
• 379523 Otero, Roberto (Argentine, 1931-2004)
• 304420 Otfinowski, Danuta (American, born 1953)
• 304421 Othová, Markéta (Czech, born 1968)
• 265342 Ot'ian, K. (Russian, active 1920s)
• 412581 Otis (Chilean, active 1930s)
• 360696 Otis, A. E., Studio (American, active 1940s)
• 403195 Otis, Arvin C. (American, born 1840)
• 365861 Otis, Matson (American, 1815-1895)
• 304422 Otley, William H. (English, active 1860s)
• 304424 Otoh, Kaoru (Japanese, born 1929)
• 304423 Oto, K. (American, active 1920s)
• 304425 O'Toole, Mary (American, active 1930s)
• 343132 O'Toole, R. (American, active 1860s)
• 304426 O'Toole, Tom (American, active 1960s)
• 304427 Ots, Marc (Belgian, born 1960)
• 336741 Otsoup, Piotr Adolfovitch (Russian, 1883-1963)
• 336742 Otsuji, Kitadai (active 1950s)
• 304428 Otsuji, Kiyoji (Japanese, 1923-2001)
• 336743 Otsuka, Gen (Japanese, 1912-1992)
• 393077 Otsup, Alexander Adolfovich (Russian, active 1890s-1910s)
• 336744 Otsup, Iosif Adolfovich (Russian, active 1900s-1920s)
• 304896 Otsup, Pyotr Adolfovich (Russian, 1883-1963)
• 304899 Otten, Hanno (German, born 1954)
• 340578 Ottenheim (French, active 1890s-1900s)
• 406572 Otte, Nicholas William (American, 1875-1943)
• 344180 Ottens, William (American, active 1860s)
• 405107 Otter, John (American, born ca. 1862)
• 304900 Otter, Robert (American, died 1986)
• 351040 Otterstadt, R. C. (American, active 1910s)
• 304897 Ott, F. (German, active 1900s)
• 351714 Ott, George H. (American, active 1960s)
• 304901 Otthoffer, Georges (French, active 1920s-1930s)
• 329648 Ottico Meccanica Italiana (Italian, active 1940s)
• 304902 Ottinger, George Martin (American, 1833-1917)
• 388689 Ottinger, Ulrike (German, born 1942)
• 304898 Ott, Jerry (American, born 1947)
• 387644 Ott, John (American, 1909-2000)
• 340579 Otto (French, active 1890s-1930s)
• 304903 Otto, Angela (German, active 1986-1987)
• 369064 Otto, Charles (American, active 1850s-1860s)
• 329649 Otto & Fiere (French, active 19th century)
• 304904 Otto, Heinz W. (American, active 1980s)
• 407066 Otto, John Frederick (American, born 1879)
• 304909 Ottolengui, Rodrigues (American, 1861-1937)
• 304910 Ottone, Mario (Italian, active 1950s)
• 304905 Otto, Otto, Prince (Austrian, active 1880s)
• 304906 Otto, R. (American, active 1870s)
• 304907 Otto, W. H. S. (American, active 1890s)
• 304908 Otto, Wilhelm (German, active 1880s)
• 379524 Ott, Paul (Austrian, born 1965)
• 6902 Otts, James W. (American, born 1878)
• 360697 Ott, Sylvestor A. (American, active 1940s)
• 329650 Ottway & Son Mfg. (English, active 1860s)
• 336805 Otway, Loftus F. (English, 1857-1916)
• 3461 Otwell, Hiram Cannon (American, born 1876)
• 336806 Otyam, Fikret (Turkish, active 1960s)
• 386732 Ouchi, Hichiro (Japanese, 1913-2005)
• 304912 Oudemans, C. C. (Dutch, active 1900s)
• 304913 Oudi (American, born 1950)
• 304915 Ough, John (Canadian, born 1926)
• 388361 Ou, Kevin (American, born 1979)
• 336807 Oulif, Étienne Casimir (French, 1804-1861)
• 304916 Oulitine, W. (Russian, active 1920s)
• 360698 Oullette, Albert J. (American, active 1940s)
• 329651 Oulon (French, active 1850s)
• 350709 Ouradnik, Frank William (American, 1876-1919)
• 18860 Oursler, Tony (American, born 1957)
• 304918 Oury, Guillaume (Belgian, 1840-1922)
• 304911 Ou, Selina (Australian, born 1977)
• 304919 Oussov, Andrei (Russian, active 20th century)
• 304920 Outerbridge, Donald (born 1923)
• 304921 Outerbridge, George W. (American, active 1900s)
• 304922 Outerbridge, Graeme (Bermudian, born 1950)
• 304923 Outerbridge, Paul, Jr. (American, 1896-1958)
• 360699 Outland, H. Charles (American, active 1940s)
• 304924 Outlaw, Gay (American, born 1959)
• 304925 Outlaw, Harry George (English, 1858-1933)
• 329653 Outley & Denison (American, active 1850s)
• 377031 Outley & Dennison (American, active 1850s)
• 344867 Outley, John J. (American, ca. 1815-1892)
• 377032 Outley & Williams (American, active 1850s)
• 379525 Outumuro, Manuel (Spanish, active 2000s)
• 329652 Out West Photo (American, active 1920s-1930s)
• 379526 Ouwerkerk, Erik-Jan (German, born 1959)
• 392978 Ouzemsky, Nikolay (Ukranian, active ca. 1890s)
• 304927 Ouzer, Louis (American, 1913-2002)
• 411876 Ovalle, Alvaro (Chilean, active 1900s)
• 304928 Ové, Horace (British, born 1939)
• 304929 Ovenden, Graham (British, born 1943)
• 304930 Ovenden, Henry C. (American, active 1900s)
• 373447 Ovens, Henry (English, 1832-1905)
• 304931 Ovens, Serena (Australian, active 1990s)
• 329654 Overall & Ferrell (American, active 19th century)
• 304934 Overall, Florence Alma (English, born 1875)
• 407630 Overbaugh, Roy Field (American, 1882-1966)
• 384848 Overbeck, Arnold (German, 1831-1899)
• 25611 Overbeck, G. & A. (German, active 1870s)
• 304935 Overbeck, Ida A. (American, active 1880s-1890s)
• 304936 Overbeck, Margaret (American, active 1880s-1890s)
• 329655 Overbeck Sisters (American, active 1880s-1890s)
• 304938 Overbey, Erik (American, 1882-1977)
• 385920 Overeem, Brand (Dutch, born 1946)
• 414259 Overell, Misses (American, active 1930s)
• 389468 Overgaard, Thorsten (Danish, born 1965)
• 405336 Overholt, John W. (American, born 1865)
• 408567 Overholt, W. J. (American, active 1890s)
• 412374 Overlake, Enrique (Chilean, active 1920s)
• 350189 Overland, A. P. (American, active 1890s-1910s)
• 349938 Overland, Carl (American, active 1890s)
• 304940 Overman, Greg (American, active 1970s)
• 304941 Overman, Victor (American, active 1920s)
• 379528 Overmeer, Erica (Dutch, active 2000s)
• 406297 Overpack, Silas E. (American, born 1872)
• 304942 Overpeck, Lucian C. (American, active 1870-1890s)
• 304943 Overs, Jeff (active 1990s)
• 304944 Oversluys, P. M. (Dutch, active 1900s)
• 401755 Oversmith, L. (American, active 1900s)
• 402484 Oversmith, L., Mrs. (American, active 1900s-1910s)
• 336808 Overstreet, Elsie Burr (American, active 1900s)
• 388593 Overstreet, Richard (American, born 1935)
• 304945 Overton, Frank (English, active 1927-)
• 369065 Overton, I. H. (American, active 1860s)
• 355454 Overton, S. E., Co. (American, active 1940s)
• 304933 Over, W. H. (American, 1866-1953)
• 410825 Ovesen, Rasmus (Norwegian, born 1843)
• 304946 Ovodow, Nicholas Norman (American, 1899-1965)
• 336809 Ovsik, Landislav (active 1960s)
• 356008 Owada, Frank (American, active 1920s)
• 304947 Owada, S. (Japanese, active 1930s)
• 390434 Owa, Ryohei (Japanese, 1909-1981)
• 362767 Owen, A. L. (American, active 1940s)
• 371671 Owen, Albert (English, born 1860)
• 344457 Owen, Arthur (American, active 1860s)
• 304948 Owen, A. Y. (American, 1915-1991)
• 304949 Owen, Burt (American, active 1950s)
• 360700 Owen, Burton (American, active 1940s)
• 408092 Owen, Carlton C. (American, born 1888)
• 372302 Owen, Charles William (English, 1860-1924)
• 304950 Owen, Chester J. (American, active 1930s)
• 336810 Owen, Courtney (American, active 1930s)
• 304951 Owen, E. B. (active 1890s)
• 304967 Owenede, Ulf (Swedish, born 1954)
• 344567 Owen, E. S. (American, active 1860s)
• 304952 Owen, Ethel P., Mrs. (American, active 1950s)
• 351212 Owen, E. W. (American, active 1910s-1920s)
• 329656 Owen & Ferrier (English, active 1850s)
• 401756 Owen, G. (American, active 1900s)
• 373219 Owen, George Henry (English, 1856-1890)
• 353957 Owen, Hal (American, active 1940s)
• 360701 Owen, Howard Lee, Jr. (American, active 1940s)
• 304953 Owen, Hugh, Sir (English, 1804-1881)
• 343683 Owen, Ira G. (American, born ca. 1835)
• 343733 Owen, J. (American, active 1860s)
• 360702 Owen, Jack E. (American, active 1940s)
• 373713 Owen, James (English, 1848-1903)
• 304955 Owen, James (American, active 1920s)
• 304956 Owen, John (American, born 1952)
• 404372 Owen, John H. (American, born 1858)
• 408568 Owen, Louis (American, active 1890s)
• 336811 Owen, Lura Briscoe (active 1940s)
• 304957 Owen, Melody (American, born 1969)
• 304958 Owen, Mike (born 1954)
• 304968 Owen-Murakami, Ginger (American, born 1971)
• 365373 Owen, N. (American, active 1850s)
• 336812 Owen, Newton Courtney (American, 1887-1959)
• 329657 Owen Publishing Co., F. A. (American, active 1960s)
• 304959 Owen, Richard (American, active 1970s)
• 304961 Owen, Robert (Australian, born 1937)
• 353958 Owen, Robert E. (American, active 1940s)
• 344343 Owens & [...] (American, active 1860s)
• 374769 Owen, Sarah Elizabeth (English, born 1870)
• 24267 Owens, Bill (American, born 1938)
• 360703 Owens, Curtis A., Jr. (American, active 1940s)
• 369066 Owens, Ebenezer (American, active 1850s-1860s)
• 371386 Owens, Elias (American, born ca. 1833)
• 377376 Owens, E. S. (American, active 1860s)
• 329658 Owen's Gallery (American, active 1870s)
• 344684 Owens, Harrison A. (American, born ca. 1838)
• 407067 Owens, Helen D., Miss (American, born 1879)
• 345084 Owen, Silas (American, active 1860s)
• 418443 Owens, Isaac (American, born ca. 1835)
• 402082 Owens, Loretta M. (American, active 1910s)
• 402083 Owens, Louise C. (American, active 1910s)
• 351800 Owens, Mark Williams (American, born 1839)
• 336813 Owens, Mason (American, active 1940s-1950s)
• 365493 Owens, M., Mrs. (American, active 1860s)
• 343915 Owens, M. W. (American, active 1860s)
• 391555 Owens, Patrick (American, active 2000s)
• 356776 Owens, R. B. (American, active 1910s)
• 356812 Owens, Richard S. (American, active 1910s)
• 371387 Owens, Robert (American, active 1850s)
• 371388 Owens, Santiago E. (Mexican, active 1850s)
• 353959 Owens, Thelma (American, active 1940s)
• 371389 Owens, Theo (American, active 1860s)
• 304962 Owen, S. W. (English, active 1890s)
• 369067 Owens, William J. (American, active 1850s-1860s)
• 304965 Owen, Walter E. (American, 1896-1963)
• 304963 Owen, William H. (American, active 1860s)
• 304966 Owen, William T. (Australian, active 1920s-1930s)
• 365166 Owen, W. T. (American, active 1850s-1860s)
• 304964 Owen, W. T. (English, active 1920s)
• 375009 Owers, Thomas William (English, 1873-1952)
• 385081 Owesen, Albert W. (Norwegian, 1917-2010)
• 304970 Owings, Natalie (American, born 1939)
• 336814 Owings, Patte (American, active 2000s)
• 340581 Owla Koki (Japanese, active 1950s)
• 356727 Owl Studio-Electric (American, active 1900s)
• 369068 Ownes, E. (American, active 1860s)
• 408569 Owosso Photographers Union (American, active 1890s)
• 410888 Øwre, Andreas Helsing (Norwegian, 1840-1880)
• 304971 Owsley, Susan (active 20th century)
• 304972 Oxenbury, Glen (Canadian, active 1970s)
• 329660 Oxford Camera Club (English, active 1890s)
• 372270 Oxford, Charles Oswald (English, born 1877)
• 304973 Oxford, C. L. (American, active 1900s)
• 329659 Oxford & Dillhoff (American, active 1900s)
• 329662 Oxford School of Photography & Colouring (English, active 1860s)
• 375545 Oxford Studio Co., Ltd. (English, active 1890s-1900s)
• 329663 Oxford University Observatory (English, active 1890s)
• 329664 Oxford University Photographic Club (British, active 1880s)
• 351552 Oxley, Elmer (American, active 1930s)
• 351041 Oxley, Lawrence (American, active 1910s)
• 360704 Oxley, Lloyd (American, active 1940s)
• 348817 Oxley, Walter Thomas (American, 1872-1955)
• 304974 Oxley, W. T. (American, 1872-1955)
• 304975 Oyama, Susan (American, born 1957)
• 304976 Oyama, Yukio (Japanese, born ca. 1963)
• 411500 Oyarzún, Aureliano (Chilean, 1858-1947)
• 412582 Oyarzún, Francisco J. (Chilean, active 1930s)
• 411618 Oyarzún, Germán (Chilean, 1901-1980)
• 411006 Øybø, Arne-Walter (Norwegian, 1900-1993)
• 411067 Øyen, C. J. (Norwegian, active 1870s)
• 410923 Øygard, Anton (Norwegian, 1866-1965)
• 360705 Oyler, Hazel (American, active 1940s)
• 304977 Oyler, Philip (English, active 1910s)
• 351571 Oyloe, Gerhart E. (American, 1895-1950)
• 378393 Oyloe, Gilbert G. (American, 1851-1927)
• 304978 Oyne, Ben (born 1938)
• 304979 Oyster, E. F. (American, active 1900s)
• 304980 Ozaki, I. (Japanese, active 1920s)
• 390545 Ozaki, Sankichi (Japanese, 1912-1994)
• 329665 Ozalid Co.,Ltd. (English, active 1960s)
• 304981 Ozanam, Charles, Dr. (French, active 1870s)
• 388580 Ozawa, Toshiki (Japanese, born 1932)
• 304982 Ozawa, Tsuyoshi (Japanese, born 1965)
• 408916 Ozbilici, Burhan (Turkish, active 2010s)
• 329666 Ozeck (Japanese, active 1980s)
• 27433 Ozenfant, Amédée (French, 1886-1966)
• 304983 Ozeri, Zion (Israeli, born 1951)
• 388752 Özer, Muammer (Swedish, born 1945)
• 304984 Ozier, M. (English, active 1870s)
• 336816 Ozkok, Lutfi (active 1960s)
• 329667 Ozobrome Ltd. (English, active 1900s-1910s)
• 329668 Ozotype Co. (English, active 1900s)
• 390795 Öztürk, Murat (Turkish, 1953-2013)