Gathering of the Chiefs, Blackfoot (Siksika) reserve, Alberta.
Hanks, Jane and Lucien
First nations
1938 or 1939
http://archivescanada.accesstomemory.ca/gathering-of-chiefs-blackfoot-siksika-reserve-alberta
is-glen-3840
http://archivescanada.accesstomemory.ca/glenbow-archives
Glenbow Archives
Alberta