 He continued performing until his death, in 1995.He released one record for RCA Victor, "Illinois Central" backed with "Sweet Lucy Blues" (Victor 20-2733), under the name Dr. Clayton's Buddy.In the late 1960s, Slim became friends with members of the band Canned Heat and played piano on the track "Turpentine Moan" on their album "Boogie with Canned Heat".