The idea of a Groundhog College intrigued me, so I did some research. I found several references to Groundhog College Road, but no Groundhog College as such. However, there is (or was) a Groundhog College House at Princeton, and you can read the minutes of one of their meetings here. The members are apparently called groundhogs. They mention sweatshirts, but they were "all sold out." I wonder why they haven't posted any minutes since 1993?