This series consists of letters received from the Office of Indian Affairs. The records also include instructions, memorandums, telegrams, statements of policy, official government circulars, and authorizations from Commissioners and other officials of the Office of Indian Affairs. The records provide information on matters of agency administration, including finance and accounts; supplies requested or purchased; supervision of Fort Totten Indian School, students, and other agency employees; staff wages, promotions, and leaves of absence; and the Indian school hospital.