Appraisal of the Blackfeet and Gros Ventre Tribes of Indians Lands in Northern Montana (1988); Docket No. 279-A Prepared by Darwin Harbin, 1988, Box: MSS-016.22, item: 26. Ralph A. Barney Collection of Indian Claims Commission Papers, MSS-016. Manuscripts. https://aspace.ll.georgetown.edu/public/repositories/3/archival_objects/9164 Accessed May 20, 2024.