Well, they sure as hell weren’t Gen X. Morrison was born in 43, Krieger in 46, Densmore in 44, and Manzarek was the old man born in 39. I suppose they were more at the tail end of the Silent Generation, except for Krieger, but generations always get a little muddy at the borderline. The boomers bought lots of their records, that’s for sure.
In 1966 boomers ranged from age 2 years old to 20 years old.
The people we know from the hippies were almost all ‘silent generation’ people. People like Bob Seger, Jane Fonda, John Denver, Jim Morrison, Jimi Hendrix, Peter Paul & Mary, Grace Slick, Neil Young, Beatles, Van Morrison, Joan Baez, Jerry Garcia, Pete Townsend, Joe Cocker, Judy Collins, Jimmy Page, Janis Joplin, Bob Dylan, Williams Ayers, Bernadette Dohrn, Chicago Seven, Rod Stewart, Abbie Hoffman, Hunter S. Thompson, Malcolm X, Charles Manson, Brian Wilson, The Beatles, and the Rolling Stones, the Jefferson Airplane, and the Mamas and the Papas, Jimmy Page, Crosby, Stills, Nash, and Young, etc, etc, etc, just about everyone that you can name.