Ride with the Thunder

Ride with the Thunder: Claudius Stoner founded the Stoner Ranch a hundred years before Del Stoner took over and keeping that ranch going for generations was not an easy thing. There were the Blackfoot Indians attacking any white man who set foot on their land as well as wars and depressions, but through the years the Stoners held fast and now it was up to Del Stoner to carry on. He had the love of his daughter Lizzy, his grandmother, Grannie Stoner, and a horse named Thunder, then he found the love of a very confused woman.
Dead Reckoning: Theo Brandt grew up in the midst of a generation long feud. Through the years, what had been just shouting and a few fisticuffs turned into killing. The Crutchfields wanted the land, but the Brandts were not willing to give it up. Theo had never killed a Crutchfield, and he didn't want to, especially after he met Leigh Crutchfield. Nobody was happy when he and Leigh married, even when their children came, so when his father died, it was time to take Leigh, the children, and his mother out of the hatred that bewitched the mountain.
Moving west to Oregon as that answer, but they got bogged down in Colorado and into another feud that could well mean his life and the life of his family.