P.S On a trivia note, and one that I did not see mentioned in the above list. Actor John Doucette is seen in TWO roles.
First he is seen as a member of the outlaw gang assembling to meet the train, and is the outlaw who asks the station master if the train is on time.
He is also seen in the discussion in the church as one who voices his support for the Marshall.
From the opening review.
Dick Elliott ... Kibbee
John Doucette ... Trumbull
Lee Aaker ... Boy (uncredited)