Found a couple more, and they say where they were collected.
1. Cree, MacKenzie Borderlands.....collected in "The valley of the Sarkatchewan" sinew backed wood.....dimensions 108.2cm x 5cm x 3.4cm
2. Cree, Northern Cree, collected at Missanabie River, Ontario in 1908, dimensions 116.5 x 3.5 x 2
listed as a "boys" bow. (It is not mentioned how they came to that conclusion)
3. Northern Ojibwe bow so you can see the distinct similarities. These 2 bands were closly related to the point of having a distinct dialect of algongquian known as Oji-Cree.
4. a clse up of a Western Cree bowstring of sinew.
hope it helps out