I just came across a business card that Foster Carter had made up for his "Foster's Blue Grotto Astrology House featuring Health Foods, 1038 N. Fairfax, Hollywood".
Foster was an integral part of the life of me and my baby-father during the year or so he had the place. My SO and Foster used to go in the kitchen area, smoke heavily all sorts of substances, drink spirits, have long conversations about everything. Foster was an amazing person, he always wore a long hair black wig, and his SO was my best friend. She painted their whole apartment in psychedelic designs, it was wonderful to trip in!
Later, after Foster and his lady (I forgot her name) left the coffehouse biz, they bought an rv or bus and we met up with them in the Haight; both of us women were pregnant. My son is now 47 so their daughter would be the same age. We lost touch after that.
There was a massage parlor next door that eventually got busted for prostitution.