chuck: food, grub, provisions. Originated probably in the West. 1850, used often throughout the century. According to one reference from Wild Indians ” chuck” it was a universal Indian term for all of the plains tribes. “The boys finished the work for the day, and gathered around the campfire to eat their chuck.”
chuck, as a verb: 1808, throughout the century. to throw, pitch.
Interestingly, the term “chow” which I’d have thought was an American Western Victorian term, is nautical in origin, and used mostly in the 20th century. I admit that I may have inadvertently used the wrong term in my Westerns. Man, there is so much to learn!