Indians of North America

Collection contains Odell's research notes from his various writing projects most notably "Mato Paha," Philip Well's manuscript from "Ninety-Five Years Among the Indians of the Northwest," mining notes, interviews Odell conducted with Native Americans, notes about military expeditions, etc. The collection also includes Odell's correspondence with Badger Clark, General Hugh Scott, Francis Case, Leland Case and others. Odell's diaries are also part of the collection.

National Register of Historic Places Registration Form for the Sisseton Agency Headquarters and Wacipi Grounds, also known as the Lake Traverse Indian Reservation Agency, Old Sisseton Agency, Sisseton Wahpeton Celebration Grounds, Sisseton Wahpeton Oyate Wacipi Grounds, and Sisseton Wahpeton Pow Wow Grounds.