#1: Mickey Hart, drummer for the Grateful Dead, Oct. 1967 – Feb. 1971. He would rejoin the Dead in Oct. 1974.
#5: According to MH, this is Danny Rifkin, one of the Grateful Dead’s managers since 1966. He appears to be naked.
#7: MH says that this is one of the engineers on the album, but he doesn’t remember which one. The listed engineers included Mickey Hart, Dan Healy, John Wollman, Rick Davis & David Freiberg. We know it’s not Mickey, Dan, or David, so maybe it is John Wollman or Rick Davis.
#13: Phil Lesh, Grateful Dead bassist. Here he plays bass on ‘Pump Song.’
#14: Unknown child.
#20: Robert Hunter, lyricist for the Grateful Dead. He wrote lyrics for three songs on the album: ‘The Main Ten’ and ‘Pump Song’ were shared with Weir’s Ace album (where they were retitled), and ‘Fletcher Carnaby’ is only found here.
#21: John Barlow, lyricist for the Grateful Dead. As far as I know Barlow doesn’t have any lyrics on this album.
#22: Unknown drummer.
#23: RM identifies him as Rex Jackson (1945-1976), Grateful Dead roadie from Pendleton, Oregon, who had worked with the band since 1968.
#24: RM identifies him as Mickey Hart, but I’m skeptical.
#25: Unknown drummer.
#26: RM identifies him as Gerald Durham’s older brother (see #44)
#28: Sue Stallcup identifies him as David Parker.
#30: Jon McIntire (1941-2012), one of the Grateful Dead’s road managers since 1969.
#31: Unknown infant.
#32: Bill Kreutzmann, Grateful Dead drummer. He doesn’t play on the album.
#40: Bob Weir, Grateful Dead guitarist. Appears on several tracks.
#42: Unknown musician, MH thinks he’s possibly from the Tower of Power.
#44: RM identifies him as Gerald Durham. I couldn’t find any information on him.
#45: Mic Gillette, horn player in Tower of Power.
#46: Stephen "Doc" Kupka, horn player in Tower of Power.
#47: Mickey Hart.
#49: Jerry Garcia, Grateful Dead guitarist. He plays on several tracks on the album, including “insect fear” in ‘Pump Song.’
#51: RM thinks this is Terri Eisenberg, daughter of Cookie Eisenberg (see #27). (I don’t know how old Terri was at the time.)
found at Mickey’s jam sessions and recording projects, and plays on several songs on the album.
#54: MH thinks this is one of the engineers on the album. (Resembles Mickey.)
#55: Larry Shurtliff aka “Ram Rod” (1945-2006). Grateful Dead roadie & crew chief since 1967, highly respected by the band.
#61: Emilio Castillo, horn player in Tower of Power.
#62: Skip Mesquite, horn player in Tower of Power.
For comparison, some undated Tower of Power pics: