This site provides information about photographers active in the United States from 1844 to 1950. The information comes from city directories, business and industry directories, classified advertising, tax lists, census, published sources and photographer's marks on the images themselves. The original website founded in 2006, is gone since August 2023 due to hosting issues. Rebuilding of the entire website from backups began in November 2024. We will be under construction for a while.