Grace sings the lullaby Hush Little Baby to the Cheyenne orphan infant, but that song was written in 1918.
The Washita Massacre of Black Kettle's tribe by Custer took place in 1868 in Oklahoma, not 1870s Colorado.
Hard to believe Cloud Dancing set out on a 700 mile journey from Colorado to Yellowstone on horseback with an infant, no food, no bedroll, and no diapers.
After ever lodge was burned, it was not explained how Cloud Dancing got hold of buffalo hides for the sweatlodge.
Custer preferred to wear the fringed buckskins of a frontiersman when he was out West, not the uniform seen on actor Jason Leland Adams.