I have gotten a few ID's out of Paul-Son. The trouble is finding someone with the time to search for them. Since they make the most chips, they have a ton of records. They also have records on one of the old distributors, that I have been trying to get released. Again, time is the enemy.
This is one ID I got from them a few years ago.

Homer G Hidon
Shipped to Dallas, Tx.
Notation on the record was " Millionaire's Club" This is a $25 chip and a box of them was found, all UNC.
There is also a few of another denomination found.

I have asked Texas chippers to research the MC, but no answers to date.