Elvin Bishop, Philip Wilson AND Buddy Guy all on drums?
I don't think so lol.
Here is the real info. It is not just the Club Au Go Go, it also has at least one track from the Generation Club 4/15/68:
Blues at Midnight (Radio Active RRCD105 / 2005 / 1CD) ftbfs: B815
(Cafe Au Go-Go, New York City, NY 17.03.68 plus Generation Club, New York City, NY 15.04.68 [Jam with B.B.King])
Tracklist:
(LP Side 1

Cafe Au Go-Go, New York City, NY 17.03.68: "Everything's Gonna Be Alright" (4) / "Stormy Monday"[listed as "Stormy Monday Blues"]
(LP Side 2

"Three Little Bears" (7) / JL1[listed as "Instrumental Jam I in D"]
(LP Side 3

JL2[listed as "Instrumental Jam II in A"] / "Little Wing" (7)
(LP Side 4

Generation Club, New York City, NY 15.04.68: JL4[listed as "Blues Jam 1"]
notes:
- Semi-official reissue of Midnight Beat MBCD 037 "Blues At Midnight" (ftbfs: B499) with a slightly rearranged track order.
- CD version repackaged and reissued in 2007 as part of Voodoo Chile Records' 5CD Box set "Live And Unleashed".