Survey of Conditions of the Indians in the U.S. hearings before the United States Senate Committee on Indian Affairs, Subcommittee on S. Res. 79, Seventy-First Congress, first session, on July 8, 10-12, 17, 1929. Part 5 :

July 8 hearing was held in Madison, Wis.; July 10 hearing was held in Lac du Flambeau, Wis.; July 11 hearing was held in Hayward, Wis.; July 12 hearing was held in Winnebago, Nebr.; and July 17 hearing was held in Pierre, S.Dak.