You might look here:

http://www.thechipgallery.com/plaque.htm

This data is VERY stale but a good start.

Jim Follis did a great job but it hasn't been updated for a few years.

Another issue you may find is people will NOT want to use their real names. There are a few names on this database that are not real people (for example Morey Halpern and Joe Lawyer were made up names)

Second, I'm sure that most of Al Poluyanskis', Norm Clem's and Walt Mendenhall's inventory has been sold off.