You were right the first time dufus ... the name of the show was The Rebel ... (Johnny Yuma was the rebel). I can still sing the theme song myownfineself! Don't forget Rawhide (Clint Eastwood) or Rin Tin Tin!
Can't believe nobody mentioned Roy Rogers. P-hole mentioned My Friend Flicka ... but how 'bout Fury? And I HAD to watch Sky King!
Loved Wagon Train. Anybody remember that old show, Broken Arrow or Wanted: Dead or Alive?
Not persactly a western ... but how 'bout Circus Boy? It starred Micky Dolenz who would later become one of The Monkeys. (Hey ... I was a kid, ok?)