There he is!

Turns out, after some more searching, I found that there is indeed some appreciation for my third man on the left, at least in the closed world of Star Trek fandom.

The most in depth is here, an actual podcast interview with Doug Grindstaff on his work doing the sound for the original Star Trek.  And it has a picture of him with his array of Emmys.  Also found this very short bio.

I've never been happier to be proven wrong.