http://fridaynightboys300.blogspot.co.uk/2014/01/allen-ginsberg-photographer.html Some great photos, of which these are only a small selection - Dylan, Kerouac, Burroughs, Kesey, Cassady but also Paul McCartney, Iggy Pop, Philip Glass, Madonna, Warren Beatty and, if you dig a little, Marianne Faithful, Sinead O'Connor, Joan Baez etc...
Thanks for the link. First Burroughs and now Ginsberg! Love that photo of Philip Glass - and the one of Ginsberg with the mirrors.