Factual error: Graham repeatedly sings a song he says his grandmother taught him: "Rufus Rastus Johnson Brown, What You Gonna Do When the Rent Come Round?" This was a Vaudeville stage composition written by Andrew B. Sterling and Harry Von Tilzer - in 1905. High Chaparral is set in the 1870s.
Factual error: Victoria's musical jewelry box has magical abilities. It can play its waltz tune ad infinitum without ever running down. In fact, we never see anyone wind it up: it simply plays the waltz endlessly every time the lid is opened. (00:17:00 - 00:25:30)