At college (presumably art) Mike - he had nothing whatever to do with the folk scene.
His uncle Hubert, Walter's cousin, was a near neighbour of Walter's, living a couple of doors down the lane from him.
We met him on several occasions - a nice man; as far as we know, he didn't have any songs.
I think the information is on the sleeve notes of one of the Leader records.
I'd be happy to let you have the article we wrote on Walter, "A Simple Countryman?' (note the question-mark) for the Tom Munnelly Festschrift, if it's of any interest - goes for anybody of course.
Jim Carroll