John Wayne
Roy Rogers
Clint Walker
Gene Autry
Gabby Hayes
Seriously good list. I never got into Roy Rogers much. (I am not sure why)
I'd add James Cagney to it. One of my favorite movies I watch at least around the 4th is Yankee Doodle Dandy.
Gabby Hayes is underappreciated. He could do any kind of movie. I liked his movies with John a lot.
I like Clint Eastwood too. The one thing, even back in the 70's I thought he would have to have been completely out of character but he could have played John Wayne. If he could have pulled that off no person in history could be his equal. I thought it was possible but I guess no one else ever did.