Owsley Stanley

Augustus Owsley Stanley III was an American audio engineer and clandestine chemist. He was a key figure in the San Francisco Bay Area hippie movement during the 1960s and played a pivotal role in the decade's counterculture. Under the professional name Bear, he was the soundman for the rock band the Grateful Dead, whom he met when Ken Kesey invited them to an Acid Test party. As their sound engineer, Stanley frequently recorded live tapes behind his mixing board and developed their Wall of Sound sound system, one of the largest mobile public address systems ever constructed. Stanley also helped Robert Thomas design the band's trademark skull logo.