The Union General William T. Sheridan in this story is a combination of two famous Civil War heroes, William T. Sherman and Philip Sheridan. Both men served out west after the Civil War.
Royal Dano again played a one-armed Confederate soldier in the opening scene of the 1969 film The Undefeated. In that, he was a Major whose right arm had been amputated from the elbow downward. His character has a speaking scene with John Wayne's Union Colonel character.