Should be Bob Livingston
Just a short note.
The first John Wayne movie I saw was "Stagecoach" in 1939 I was 14 years old.
I might have saw him in the "B" western as Stony Brooke in the 3 Mesquiteers series, but only remember Bob Livingston (http://www.b-westerns.com/living.htm).
There were 51 Three Mesquiteers yarns churned out by Republic from 1936-1943, and Livingston appeared in 29. John Wayne assuming the Brooke role in eight releases for the 1938-39 schedule, But when STAGECOACH (1939) hit the screen, Wayne gained in popularity and moved on to better films. And Livingston returned to the Mesquiteers as Wayne's replacement.
I used to have all the John Wayne Movies you could get on VHS, there gone, now I'm working on DVD's.
Add 10/25/1926. 80 years old!!!!!!