The University of Utah's daily campus paper, the Chronicle, had very few little fragments on the GD show held in the Union Ballroom on campus on Saturday, April 12, 1969. Taboot, I couldn't get access to a decent scanning arrangement, as you'll see. So, no page details, etc. Scans below, here's what I find.
SDS Ball, The Grateful Dead and Spirit of Creation, Lights by Five Fingers. Two shows, 8 and 10 p.m., $2 for students and $3 for non-students.
I know you can't read the text from the next two bits, but they have some interesting tidbits. This little blurb "Grateful Dead at SDS Ball" says that the group had been scheduled to come earlier in the year but had to reschedule. I did not know that. No time to search around when this might have been or what might have happened.
This last illegible bit says that the writer interviewed the GD before the show, and they said that they'd have two records coming out, a studio one and a live one, within the next month or two. I don't know the timelines of Aoxomoxoa and Live/Dead, but this sounds a little bit ambitious. Anyway, FWIW.
I might be able to get a few more scans from the Salt Lake City Tribune, but we'll see.