Jim Murray—Guitar, vocals,Greg Elmore—Drums
Later in 1967, they got a spot in Jack O’Connell’s Haight-Ashbury documentary Revolution (1968), and on the accompanying soundtrack album. By the end of the year—by which time singer-guitarist Jim Murray had exited—they were under contract to Capitol Records. It wasn’t until a year after Monterey that their self-titled debut album was released, but it only captured a faint echo of the band’s dynamic live sound. Their second album, Happy Trails, was somewhat more representative, highlighted by the presence of a 25-minute jam growing out of Bo Diddley’s “Who Do You Love.” After that, the line-up began to splinter, as Gary Duncan quit and was replaced by British keyboard virtuoso Nicky Hopkins, for the album Shady Grove. Duncan returned soon after its release and it was at that point that Valenti finally rejoined the group, after attempting to restart his solo career following his parole from jail. This expanded Quicksilver line-up lasted until 1972 when Cipollina, Freiberg, and Hopkins all left—the remainder of the group, effectively led by Valenti, carried on with hired replacements for two albums before officially disbanding in 1973.
https://www.criterion.com/current/posts/254-monterey-pop-artist-bios-part-one