Jim Buckmark is a reference to Chief Jim Pockmark a Anadarko chief.
Ironically, as a scout for the Texas Rangers, he fired the fatal shot killing Comanche Chief Iron Jacket at the battle of Little Robe Creek in
1858.
He held his fire until Iron Jacket turned on his horse and exposed a opening in his body armor.
Nice; I also rather enjoyed the Budweiser anti-logo logo; as a void space in the door; at the start of the video... since it is difficult to product
place in period piece movies of the past.