McCartney
I couldn't ignore & help but be reminded of Beatle *Paul* McCartney when hearing this character's name mentioned.
It's probably nothing, but I did wonder why the screen writers chose that (pretty uncommon surname) for the character vs. a far more common, similar name like McCarthy. I mean, by 1969 who on earth didn't know the Beatles?
Think it was a subtle reference?
Hey- they used a football player in the movie. I don't think it's a huge stretch.