The photographs collection offers a wide array of formats that track with the development of photography itself. These formats include daguerreotypes, cartes de visite, cabinet cards, cartes de visite, stereoview or stereograph cards, albumen prints, a poster with applied photographs, and “real photo” postcards. Subjects of the images include not only portraits of P.T. Barnum and his associates, but his various homes in Bridgeport, Connecticut.