Conclusion: If I were an unscrupulous player, I'd create a new PCF account, and post a "new" guess identical to my original, but with "Mesquite Star" in place of "Benny's Riverside Casino".
Even without hearing from djmarc, I realize that I'm wrong again. a) I spotted a stupid numbering mistake on my original list, and b) I think perhaps the first barrel of black/purple/lavender chips are Mesquite Star, and the half barrel are Benny's.
So, here's my revised, albeit disqualified, list:
First row:
1. Casino Aztar Evansville secondary $100
2. Casino Aztar Evansville primary $100
3. Mesquite Star $100
4. Casino Aztar Caruthersville primary $100 (top), and Benny's Riverside Inn $100 (bottom)
5. Casino Aztar Caruthersville primary $100
Second row:
1. Empress Joliet primary $100
2. Empress Joliet secondary $100
3. Empress Joliet secondary $100
4. Matsui Zen $100 (top), and Grand Victoria primary $100 (bottom)
5. Casino Aztar Evansville primary $500 (top), and Casino Aztar Evansville secondary $500 (bottom)
Third row:
1. Terrible's St. Jo primary $100
2. Terrible's La Grange primary $100
3. Terrible's La Grange primary $100
4. Terrible's La Grange primary $500
5. Empress Joliet secondary $500