Too late to be careful. Your mentioning the Kingston Trio triggered something and I had to look them up. Only song I could remember by them was Tom Dooley and I knew there had to be a lot more and of course there was and here is one that I never heard that I liked. Couldn't find anything with PP&M, the trio and Harry Belafonte, but this song has Mary Travers, Judy Collins, the trio and a whole lot more.
https://www.youtube.com/watch?v=kvo1uIJwWRw