When Packs a Knife of the Blackfoot lost his son in battle with the Crow, he decided to kill the son of his enemy. After he took the Crow chief's son, his wife convinced him that this boy so closely resembled their son, that He decided to adopt him. Later the 2 tribes decided to make an alliance. Packs A Knife was made honorary Cheif of the Crow as well. His name was changed to Crowfoot. He was responsible for the forging of a confederacy of tribes. So that is why it is hard to differentiate, when it comes to researching ancestry.
I am STILL trying to get info on my great grandmother, born to a blackfoot chief, that migrated to the Colorado Rockies, in 1860 plus, where my grandfather was born in 1906. (ALICE GOFF-DAVIS).
GOOD LUCK.
Melody Alberts