Did you know that..... Chuck was older then John Anderson?
Chuck was born April 10, 1921
John was born October 20, 1922 in Clayton, Illinois
Chuck died November 10, 1992
John died August 7, 1992 in Sherman Oaks,
California of a heart attack
Even though Chuck was older then John, John played Chuck's father-in-law in "Old Man Running" aka "The Wanted Man" (episode—#166). That makes him Johnny Gibbs "Pa!" (The Brother-in-law—episode #5)
Still, having a father-in-law just a few months younger is an interesting concept! A credit to Anderson's ability to morph into a character. He's listed as 6' 51/2" too.
Thanks Kurt Burgess for the info!
John Anderson — Find A Grave