Career
He first worked for Mathew Brady and Alexander Gardner making a photographic record of the American Civil War, this work was published by Gardner in 1866 as "Photographic Sketch Book of the War" Volumes 1 & 2. (Washington, District of Columbia Philp & Solomons). After the war, he traveled with George Custer as the official photographer of the 1873 Yellowstone Expedition.
He also accompanied Alexander Gardner on the Kansas Expedition.