found: Northwestern University Libraries, Berkeley Folk Music Festival archive, 1957-1970(Elysium Senate, new rock group which has just completed a tour with The Byrds and cut their first record with Columbia; members Mike Brewer and Tony Mastin, guitar; Jim Fielder, bass, Billy Monday, drums; Los Angeles Free Press, May 20, 1966)
found: Wikipedia, September 8, 2020(Jim Fielder, born October 4, 1947 in Denton, Texas; American Basist; orginal member of Blood, Sweat and Tears; before that played with several other bands, including with Mike Brewer, the Mothers of Invention, and Buffalo Springfield)
