Yes Bob worked in the Casino industry since leaving the Air Force, I believe.
He was a pit boss at Harrahs's when we met him (my mom was a dealer). Then he went to the Circus Circus in Las Vegas, then the Excalibur, then Treasure Island... I think.
They are both retired and living back in Reno, closer to my mother's family.
I was able to copy many of the pictures you posted to my hard drive and I am in the process of incorporating them into my FTM file. Thank you for labeling them so carefully, it was neat to be able to put the faces to the names in my file.
My mom and Bob are anxious to see them, and after I get as much entered in as I can find, I will see how it prints out (hopefully with the pictures) and send them a copy.