Thanks! Found him. I'll send him a message later today with the photos and serial number of my dulcimer. As it turns out, he is only about 35 miles from my home in Natural Bridge. Maybe I will be able to visit him.
I have a small collection of electric and acoustic guitars as well as cigar box guitars and violin (some of which I built myself). I also build all my own vacuum tube guitar amplifiers.
I have a BSEE from Virginia Tech earned when vacuum tubes were still part of the curriculum. I retired 4 years ago from my job as a Satellite Communications Systems Engineer contractor with the CIA. I worked in the Intelligence Community for 40+ years. My wife and I retired to Natural Bridge Virginia in 2019.