Timothy H. O'Sullivan (c. 1840 - January 14 1882) was a photographer prominent for his work on subjects in the American Civil War and the Western United States. O'Sullivan was born in either Ireland or New York City. As a teenager, he was employed by Mathew Brady. When the Civil War began in early 1861, he was commissioned a first lieutenant in the Union Army and, over the next year, fought in Beaufort, Port Royal, Fort Walker, and Fort Pulaski. Wikipedia
The definitive Wikipedia entry for Timothy H. O'Sullivan. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Timothy_H._O'Sullivan
The definitive Wikipedia entry for Timothy H. O'Sullivan. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Timothy_H%2e_O%27Sullivan