The Wanamaker Collection of the Mathers Museum of World Cultures, Indiana University, consists of over 8,000 photographs of American Indians made between 1908 and 1923 by Joseph K. Dixon. These individuals represent over 150 tribes.
Beginning in 1908, Rodman Wanamaker, son of the Philadelphia department store owner, sponsored a series of “Expeditions to the American Indian headed by Dixon. In 1909, Dixon and the Wanamakers became actively involved in the American Indian policy reform movement. They worked towards the building of a National Indian Memorial, which was dedicated in February 1913. Later that summer, Dixon and his staff traveled to over 150 reservations across the country carrying a “Declaration of Allegiance” seeking citizenship for the disenfranchised American Indians.