Marty's dad works hard at his job as a postal carrier. Family is important to Dad. Even though they don't have much money, they manage to send any extra money to his sister, Hettie, to help care for his ailing mother. Marty's father is a proud man who values truth and honesty. He understands the ways of the people who live in Tyler County. He respects other people and their privacy, he minds his own business, and he has "the sense to shut up" — qualities that he tries to impress upon Marty.
Marty's dad gets upset with Marty for speaking boldly to Judd Travers, but he seems to understand and is gentle with him. Dad always looks out for Marty. Knowing that Marty wants to find out how Shiloh is, Dad indirectly asks Judd questions about his dogs when he delivers Judd's mail. Marty is aware of Dad's consideration. Dad is perceptive; he notices that Marty is not acting like himself, and so he discusses Marty's behavior with Ma. Dad is concerned about Marty. Dad is also quite sensitive. When the German shepherd attacks Shiloh, Dad takes Shiloh to Doc Murphy rather than back to Judd. Dad never yells at Marty or punishes him for telling lies and hiding Shiloh. Instead, he doesn't say anything, forcing Marty to accept responsibility for his actions and tell the truth. Dad also agrees to let Shiloh stay with them until Shiloh's wounds have healed. When Shiloh is staying in the Prestons' kitchen, even Dad becomes attached to the little dog and can be seen petting Shiloh and letting Shiloh lick his plate clean. Dad is patient and forgiving, seeming to understand Marty's dilemma about Shiloh.
