I had never heard of Giles Lutz or read any of his books until I ran across Man on the Run, so I looked him up on Wikipedia, which has a short bio on him. Born in Missouri in 1910 he passed away in 1982, but not before he won a Spur Award for The Honyocker. He was a prolific writer with sixty-four westerns under his belt, plus as Brad Curtis, eleven erotic novels. He had an anthology and an Omnibus published, too, and wrote short stories for the pulp magazines. Lutz wrote under several different names: James B. Chaffin, Wade Everett (with Will Cook), Alex Hawk, Hunter, Hunger Ingram, Reese Sullivan, and Gene Thompson, plus the Brad Curtis erotic novels. And he wrote sports fiction for the pulps like Ace Sports, Complete Sports, and Football Stories.
You can check him out at http://en.wikipedia.org/wiki/Giles_A._Lutz from which I glommed on to this info and I'll be reading more of his stories.