Posted By:
George DreherAccording to the email I got from my buddy in Pennsylvania, the grandfather's name was H.K. Shigley, born and lived in Michigan and he was a professor at Ohio State University in the 1920s before resigning his job at OSU to travel all over the world. The guy was a multi-millionaire collector of everything. I would venture to guess that he was related to the professor you mentioned. Does Joseph Shigley still teach? Supposedly there are thousands of raw vintage cards in the collection.
Also, the auctions won't be hard to find for anyone who browses the pre-1930 non-graded section of eBay. The seller only has one card listed right now, so nothing to get excited about yet.