|Dates||founded 1842, dissolved 1874|
Brothers William and Frederick Langenheim became two of the first successful commercial photographers in America. Both were born in Germany--in 1807 and 1809, respectively--and immigrated to the United States as young men. By the early 1840s, Frederick and his brother had opened a portrait studio in Philadelphia at the Mercantile Exchange. Many prominent Americans, including President John Tyler, sat for them. Frederick operated the camera and produced photographs; William worked as business manager.
The brothers initially practiced the