Pifias

When of of the young boys gets Diphtheria, the Spoon the Doctor Used. He Hardly Rinses. Then wipes in a towel. Know Diphtheria is a Highly Contagious Disease. Any Responsible Doctor, would not Factually Happen Even in the Late 1800's.

As young Robbie leaves his house for the last time, the camera angle reveals the snowy backdrop to be on a sound stage as the catwalk is seen clearly for a second or two.

When Rex Thompson's character Robbie is pulling his sister through the snow you see in the background a mountain that would not be part of Wisconsin's landscape.

When Robbie and his father are on the porch at the abandoned homestead, the boom mic is visible above Robbie's head.