In the knife fight scene where Clum breaks up the war dance, his opponent slashes at Clum and hits a tree. When the two separate, the knife is obviously pulled from the tree. In the next scene the two are on the ground fighting, but the knife is stuck in the tree.
Clum traveled to Ohio to marry Mary, then brought her back with him to Arizona. They weren't married after she joined him.
One the Apache men is called Taglito. In Apache this means Red Beard and was the name they used for Tom Jeffords who was another sympathetic Indian agent. Tom Jeffords was played by Jimmy Stewart in Broken Arrow.
When Mr. Clum is talking to the young Native, Tono says, "emenies" twice instead of enemies. However, this may well have been deliberate, as a way of depicting the boy's inability to pronounce an English word.