I got my courage up and called. His wife answered and she remembered me right away. I had hit pay-dirt!! YES!!
But now the question is, how do you re-introduce yourselves to each other after 50 years? Each of us had moved on and traveled down our own paths. We did exchange email address and we're starting with small stuff and hopefully that will provide enough background so that when we do meet face-to-face at our next class reunion we won't be total strangers.
'till later...