Where did actor Keenan Wynn go to school and college?

I came across this actor's name recently (he was popular during the 1930's - 60's) and I had a sudden recollection of my father telling me they had been friends. I found that Wynn WAS my father's age and did grow up in NY, as did my father (now deceased, as is Wynn- they would be in their 90's!). Am curious as to whether this long ago memory is correct or if I am thinking of someone else. If anyone knows where Wynn went to prep school and college, that could easily answer my question.