Owsley Stanley -
-First large scale producer of pure LSD in the early 60's
-Estimated 5 million hits (of 100 micrograms each) of 99.9% pure LSD were thought to have been produced by him.
-Was also a sound engineer and worked with The Grateful Dead as soundman and financier. He also designed the lightning bolt skull logo.
-The iconic "Dancing Bears" also first appeared on the reverse cover of this album, painted by Thomas as an inside reference to Stanley; dubbed "Bear" as a young teen when he sprouted body hair before the rest of his friends, he had studied ballet in his early 20s and displayed a distinctive style of dancing while tripping on LSD at shows—becoming what his friends called "The Dancing Bear".
-The Jimi Hendrix cover version of the Beatles song "Day Tripper", from a 1967 BBC session first released on CD in 1987, features Jimi Hendrix clearly shouting out, "Oh Owsley, can you hear me now?" during the climactic guitar solo.