Musicians
Jerry Garcia
- pedal steel guitar David Nelson
- electric guitar David Torbert
- electric bass John Dawson
- acoustic guitar, vocals
Mickey Hart
- drums
The venue has historically been rendered with two Rs, but this spelling is correct.
The canonical structure of the "An Evening With The Grateful Dead" shows in this period was acoustic Dead, New Riders, electric Dead. On Twitter, attendee Bob Simmons recalls that this one ran NRPS-AGD-EGD, which is also how we think 5/1/70 unfolded.
expost: Harry Jackson hung out and rapped with the whole band and scene May 15 and May 16. "On Tour with the Dead," Zygote III, July 22, 1970, pp. 41-44. Full-text via deadources, JGMF Reading Notes.