Followed a hunch, Bob, because I haven't seen him in several years, but I thought it looked like Bob Heisterman, Croc AC. (I think Tom F met him in Las Vegas also...?)
Got in touch, his answer:
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Bob- Yup...its me. When they visited Austin-Lakeway area, I was invited to participate in their program. Myself and several other VHPAers went to local schools to talk about liberty, freedom and duty to country. It is a very professional group, half vets and half guard/ American Airline pilots... I gave them my 119 Co, Croc, and D/101Hawk patches that you see on the trans wall. I will have to check the site!! I gave them several of the coins that you minted and they appreciated them. The PIC, Bruce, gave me a neat coin thanking us for our participation. Our patches will stay in the exhibit 30yrs!!!
Best Regards, Bob Heisterman