Sorry no further information on the Mason card.
Not even the name of the person that ordered them.
Most cards do have a name.
John gave you some good places to start. Ask for criss cross directories from those years. Most CC directories are a year behind. If you are looking for 1937, look in the 38 book.
I would love to have more information on them.

When this chip 1st showed up it was billed as a Havana, IL illegal owned by the Bonnet family. It came out with a bunch of other chips attributted to Havana. I spoke to the Havana library and confirmed that Havana was a hot bed of illegals, several ran by Al Capone. There are a number of newspaper articles on them. I confirmed several of the chips were Havana. Bon air was not mentioned in the articles.
How far is Havana from Wheeling? There could be a tie.