From Deadlists: "These shows were billed as "Jerry Garrceeah (Garcia) and His Friends" on the poster for the October 1968 schedule at The Matrix (see "The Art of Rock", page 166). However, the "on the town" column in the San Francisco Chronicle newspaper, by Ralph J. Gleason, which which gave listings of what bands were playing locally, says that "The Grateful Dead and Elvin Bishop" are playing at The Matrix on these dates (see the San Francisco Chronicle for Monday October 7, 1968 pg 49 and Wednesday October 9, 1968 pg 48)."