This affidavit given by John Smith, an interpreter for the United States military, was presented to the military commission investigating the massacre of Cheyenne Indians at Sand Creek, Colorado, in 1864. Smith's account focuses primary on the events prior to the massacre, including the attitudes of the Cheyenne leaders One Eye and Black Kettle. The affidavit is part of a larger report containing evidence obtained at this hearing, titled Report of the Secretary of War, Communicating, In compliance with a resolution of the Senate of February 4, 1867, a copy of the evidence taken at Denver and Fort Lyon, Colorado Territory, by a military commission, ordered to inquire into the Sand Creek massacre, November, 1864.