Photographers in The New York Public Library's Photography ...

A. Newton Oakley (American, active 1870s)
Ober Brothers (American, active ca. 1870s)
E. R. Ober (American, active 1870s)
Michael O'Brien (American, born 1950)
Kevin O'Connell (American, active 1990s-2000s)
Si Odell
Carl Odelman (American, born 1944)
Odiorne & Co. (American, active 1870s)
Albert Oehlen (German, born 1954)
Kazumasa Ogawa (Japanese, 1860 - 1929)
Beecher Ogden (American, 1873-1963)
Oggiano-Mitchell (American, active 1930s)
T. Ogle (English, active 1850s-1860s)
S. Oglesby (English, active ca. 1860s-1890s)
Patrick O'Hare (American, active 1990s-2000s)
Karen O'Hearn (American, born 1957)
J.D. Okhai Ojeikere (Nigerian, born 1930)
C. F. O'Keefe (American, active ca 1880s - 1890s)
Jenny Okun (American, born 1953)
Old Masters (American)
Toby Old (American)
T. S. Oldershaw (American, active 1869 - 1888)
Alfred V. Oldham (American, active 1910s)
L. K. Oldroyd (American, active 1870s - 1880s)
William Oldroyd (American, active 1870s)
C. O. Oleson (American, born ca. 1886)
E. Percy Olive (American, active 1880s-1930s)
F. W. Oliver (American, active 1870s)
Henry W. Oliver (American, born ca. 1839)
Arthur Ollman (American, born 1947)
Greg O'Loughlin (American, active 1980s-2000s)
Niels Olson (American)
Hank O'Neal (American, born 1940)
Hugh O'Neil (American, active 1880s-1890s)
J. O'Neil (New Bedford, MA) (American, active ca. 1880s)
J. O'Neil (New York) (American, active 1860s-1880s)
David A. O'Neill (active 1970s)
Ferdinando Ongania (Italian, 1842 - 1911)
Yoko Ono (Japanese, born 1933)
Pieter Oosterhuis (Hollander, 1816 - 1885)
Oprawil & Co. (Austrian, active ca. 1870)
Orduña (Mexican, active 1950s)
John O'Reilly (American, born 1930)
Ruth Orkin (American, 1921 - 1985)
Ted Orland (American, born 1941)