Received word from classmate Scott Mazzie that Doug Groves passed away in December, 2023.  Here is his Facebook message from December 29th.

Our classmate, and my lifelong partner in crime, and beer drinkin' buddy, Doug Groves passed away some time in the early morning hours, and was gone this morning. There won't be a funeral, but Doug's wife wants to have a memorial for him in the very near future. I'll post any updates as soon as I get them from the family...