For years the Milwaukee 1976 recording has been listed as being performed on (Monday) 3/1/76. After digging through some newspaper archives I noticed that the gig was actually performed on Tuesday 3/2/76.
I've attached an ad I found from an Underground newspaper. A preview of the show was in the 2/27/76 Milwaukee Journal and a review of the show in the 3/3/76 Milwaukee Journal all confirm that the show was performed on Tueday, 3/2/76 (not Monday 3/1/76).