Warren Oates was 30 in Yellowstone Kelly when he played the character 'Corporal'.
That was over 65 years ago in 1959.
In 1982 he died aged just 53, starring in 58 films in his career, 55 of those after Yellowstone Kelly was first released. If he were alive today he would be 95.
In Yellowstone Kelly, I think Warren Oates looks: