Biography
Sedgwick was born in 1820; he became a teacher in the New York City public schools, lecturer in natural history, and photographer who compiled genealogical materials on the Sedgwick family; in 1865 he joined the Photographic Corps of the Union Pacific Railroad and tranversed the route west of the Missouri River, shooting photographs for a history of the region; the experience led to a series of lectures and exhibitions throughout the eastern U.S.
From the guide to the Stephen James Sedgwick Papers, ca. 1858-1906, (University of California, Los Angeles. Library. Department of Special Collections.)