You ONLY mentioned Mass., which is WHY I jumped down your throat. Sorry about that, but I lived through this stuff, was a bit interested in THE BEATS ( not FOR that scene, just found it curious and somewhat off putting ), but hey...I was a teen. ;
Going off a bit, diverging into the music scene in London/the UK, in the late 1950s, ALL groups were heavily influenced by American R&R, as were the Beatles!
This was the age of the "dandy" dressed lower class thugs, wearing velvet jackets, "winkle pickers" ( pointy toed shoes), ruffled shirts, and long hair styles;"THE MODS"!
It all really goes a farther back, into say '58, than the Beatles, re the UK music scene!
Actually, the folk music scene in America, started off with VERY clean cut, NON-LEFTIES, IF one ignores the STINKING COMMIES of THE WEAVERS, who by that time had been around for DECADES.
Also, don't forget about Burl Ives! And he goes back to the early 1950s or earlier. And he was very POP CULTURE and loved by everyone, including little kids.
Which sounds as if you mean to say the Beats first appeared in 1968.
Of course you know the terms “beat generation” was factually coined in the 1940’s.
Sorry for the confusion.