Peter is the pen name of author Jonathan Hurff Glidden. He was born in Kewanee, Illinois, in 1907, and studied English literature at the University of Illinois. In his career as a Western author, Glidden published sixteen Western novels and over one hundred and twenty short novels and short stories for the magazine market. His first novel, The Crimson Horseshow, won the Dodd, Mead Prize as the 1941 Best Western of the Year. He died in 1957.
Note: "Peter Dawson" was also a pen name used by Frederick Faust (better known another of his pen names, Max Brand). Care should be taken when attributing books.
Although this western has some typical stock characters -- the drunk newsman, the bush easterner, the setting of railroad vs settlers is an interesting one, and the main character of Yancy, an ex gunfighter trying to help out the settlers is presented well.
Definitely a harsh portrayal.
I read nearly all of the L'amour books and a bunch of other westerns 15 years or more ago, and on re reading them I still see merits in some of these books.