The Clark University show currently listed:

http://www.dead.net/show/april-20-1969

was the Dead's second appearance at Clark University's Atwood Hall. There is documentary evidence for this in the soundboard recording, during the pre-set tuning, when someone (Phil?) announces "The last time we were here it was a total disaster."

He is referring to their previous visit, probably on January 7, 1968, that was cut short by a couple of power failures. I've detailed this visit in a post on archive.org where the recording is now available:

http://www.archive.org/details/gd69-04-20.sbd.lutch.4992.sbeok.shnf

However, in case this disappears, I've included an excerpt (below)

There was an earlier Dead show at Clark, the prior academic year, which is missing from the database.

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 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.

keep your character, enjoy living, share your fortune,
OXOX Merple Reddin

keep your character, enjoy living, share your fortune,
OXOX Merple Reddin

http://www.dead.net/show/january-21-1979
this show was in detroit, not Portland OR as listed.
i was there.
i have never been to Oregon and I am from Detroit.
and I have a tape.
and yes, Donna was absent but keith was on keyboards still.
it was pretty amazing.

Husband and I attended show in Byran Burn Center (spelling may not be right), East Rutherford New Jersey Fall 1984 can't remember exact date but remember I was hughly pregnant but wouldn't miss it. Daughter born Jan 1985. Please help! couldn't find it in the shows from that time.