Timothy H O'Sullivan 1840 - 1882
- occupation:
- Photographer
- Nationality:
- Irish; American
- born in:
- New York, New York state, United States
American or Irish photographer; in 1861 part of Mathew Brady's team photographing the American Civil War; 1867 to 1870 photographer for Clarence King's 40th Parallel Survey; 1870 photographer for Selfridge Expedition to Panama.