Take a look at this completed auction. This seller took some liberty with the description.
First, the image on the mug looks little like Hack.
Second, if they were trying to feature the star of the team they likely would have gotten the name right.
Third, there was a Harry Wilson with the Cubs minor leagues in 1933 who may have attended spring training with the team.
What do you all think?
http://cgi.ebay.com/ws/eBayISAPI.dll...m=290637832006