This series consists of principals' subject files. The files relate to the duties of the principal at Flandreau School. The files contain correspondence with other agencies and reports submitted to the Commissioner of Indian Affairs. The records provide information on awards; classes and books; eligibility for loans; daily and quarterly attendance reports; annual financial estimates; the enrollment of students from various agencies; athletic events; applicants for enrollment; education conferences; educational equipment and supplies; student council; and other subjects common to the administrative responsibilities of a principal.