Paint

Paint was Jack's horse.

Jack is given Paint as a gift when he retired from the rodeo circuit. He uses Paint as a working cattle horse until he succumbs to his arthritis.

Season 3
When Jack agrees to help Amy look for a missing Ty with the rest of the family, Jack takes Paint to help search. (Eye of the Wolf) Jack rides Paint to Marion's memorial. (The Reckoning)

Season 9
After Paint can no longer stand due to his arthritis, Jack has Ty euthanize him when Jack can't bring himself to shoot Paint. A piece of Paints hair was braided and put on Jack's hat for memorial.