Rooted in "The Weavers" is most definitely certain. I get a kick out of finding out where the three originals dug up "their repetoire", including Burl Ives and ton of very hip Caribbean types.
It was their appearance, their style, their clean looks and collegiate innocence that made Dave, Bob, and Nick, so attractive to families, who would wish to invite them over for dinner.
Short story: My older sister and her girlfriend got tickets to see the originals perform at Forrest Hills Tennis Stadium, in Queens, New York, about 1959. Afterwards, the Trio mixed with thousands of fans, sigining autographs (imagine the Beatles doing the same). My sister got Dave Guard's signature, sadly, long since gone, when she heard one of them, I think it was Bob, say "Shit!", while battling the sea of pens.
She came home just shattered. Such a word was a serious transgression in our home, and to hear it from her beloved Bob Shane...???
I've enjoyed our conversation as well. I think it's because we're talking about the people we came here to discuss. I love the music of the "two original" Kingston Trios, most especially the first. I'm glad to have met others of a similar mind.