The comment thread for the archive recording of the April 20, 1969 includes a detailed memory from a Clark student who saw both the 1967 and '69 Atwood Hall shows
I was a Freshman in the fall of '67. The Dead made their first appearance at Atwood Hall in late '67 or early '68. They performed a lot of material from Anthem although it had not been released yet. I was sitting near the center aisle when all of I sudden, maybe 40 minutes into the set, Paul MacGalliard goes running down the aisle towards the stage. That's funny, I thought. I wasn't used to seeing Paul, a man of significant size, move so fast. I was working with the theater group, learning stage lighting, and Paul, who was a year or two ahead of me, tolerated me and taught me the ropes. Suddenly I realized that all of the little red lights on the guitar amps had gone out. The Dead had blown out the power, but I was so entranced, I didn't even notice. The stage lights were still on, they were on a different circuit. The band members all picked up percussion instruments and just kept playing. (Maybe this was not the first time this had happened). They kept jamming until Paul threw the breakers and the power came back.The writer is not certain of the date, and attempts to speculate later in the thread, but we now have more information than we did at that time, so I will make another proposition here. The Grateful Dead came East in December 1967, and there is no evidence that they left California in early 1968, so all theories point towards a late 1967 show.
The Dead played a while longer until the circuits heated up and they blew the power again. It was no use, they excused themselves, and promised to come back, which they did in April of 1969. We had new power lines in Atwood, installed especially for them.
According to Dennis McNally (pp. 231-235), the band was recording in New York at the Olmstead Studios on 48th Street, with Dave Hassinger as the engineer. Ramrod, Bill Kreutzmann and Bob Matthews had driven the equipment truck cross country, and the band was in the Chelsea Hotel and then at a house in Englewood, New Jersey. Given the band's always precarious financial condition, it would make sense that they would play a few weekend gigs while recording, because they would have needed the money. With this in mind, let's review the known dates for late 1967:
November 10-11, 1967 Shrine Auditorium, Los Angeles Buffalo Springfield/Grateful Dead/Blue Cheer
November 12, 1967 Winterland
The Dead were recording in Los Angeles before and after the November Shrine shows, and probably flew up for the Winterland show (which was a benefit of some kind). I am still looking for some confirmation of this show beyond the listing in Deadbase.
December 8-9 Psychedelic Supermarket, Boston
See my post for an explanation of this long-lost show
December 13 Shrine Auditorium, Los Angeles
I have a lot of questions about this date--see below
December 22-23 Palm Gardens, New York Grateful Dead/The Gray Company/Aluminum Dream/Group Image
December 26-27 Village Theater, New York Grateful Dead/Peggy Emerson/Take Five
The run-down Village Theater would become the Fillmore East the next March.
December 29-30 Psychedelic Supermarket, Boston
The timeline suggests that the Dead had finished recording in Los Angeles by November 19, and possibly earlier, and if we give the crew a week to get across the country, it seems clear that the band's equipment was in New York by Thanksgiving. I do not know exactly when they started recording. With the exception of the problematic Shrine show on December 13, the Dead seem to have stayed on the East Coast throughout December.
Given the clear memory of the Clark U. student, and given the tendency of colleges to schedule big events on Saturday nights, it seems most likely that the Grateful Dead played Clark University on either Saturday December 2 or Saturday December 16. I am more inclined to believe December 2, since December 16 seems a bit late for school to still be in session. It is also possible that because of end-of-term scheduling, a show would have been allowed on a weeknight. If that were the case, then Thursday December 7 seems the most likely, as Worcester was only 45 miles West of Boston.
The Shrine, Los Angeles December 13, 1967-Did It Happen?
The listing for the Shrine show has been listed in Deadbase for many years, and as a result it has been taken for granted by Dennis McNally and others. Is there any independent confirmation of this show? I have done a lot of research into Shrine rock shows in the 1960s (as yet unposted), and I have never found any sign of this show. December 13 was a Wednesday, and weekday Shrine shows were very rare, and unheard of in 1967. At this point, I'm fairly unconvinced that the Dead played in Los Angeles on December 13.
If someone can find confirmation that the Dead played the Shrine on December 13--and its still well within the realm of possibility--the Dead would have had to fly in with their guitars, play the show on someone else's equipment, and fly out. This isn't completely unreasonable. If the Dead's equipment was in the East (and that seems incontrovertible, per McNally), band members may have wanted to go home for a week or so, so a flight to LA, a paying gig and a week in San Francisco to catch up at home might make some personal sense.
I'm hoping someone from Los Angeles, or has done newspaper research on the period, has some memories or insights on one side or the other of this question.