Condition of the Indians in Oklahoma. hearings before the United States House Committee on Investigation of the Indian Service, Sixty-Fourth Congress, second session, on Mar. 19-23, 1917. Vol. 3 :

Mar. 19 hearing was held in McAlester, Okla. Mar. 20 and 21 hearings were held in Muskogee, Okla. Mar. 22 hearings were held in Idabel, Pawhuska, and Hugo, Okla. Mar. 23 hearing was held in Ardmore, Okla.