Factual error: The crazy lady, whose family (except the boy), were murdered by Indians, sings "Shall we gather at the river" after Jeremiah buries them. Only that wasn't written until 1864.
Jeremiah Johnson (1972)
1 factual error
Directed by: Sydney Pollack
Starring: Robert Redford, Will Geer, Delle Bolton, Josh Albee
Revealing mistake: Although the film is set during the aftermath of the Mexican War (1848-50), the mountain vistas display some lovely radio towers and fire ranger stations.
Del Gue: Ain't that Hatchet Jack's rifle?
Jeremiah Johnson: Yep. Found him froze to a tree.
Del Gue: Damn! He was a wild one, old Hatchet Jack. He was livin' two year in a cave up on the Musselshell with a female panther. She never did get used to him.