CD, I'm sure you're right - though I think he must have had a particular speciality in that area to occasion the theme words. It may be I've missed an obituary somewhere, though I've looked extensively and have only found one brief reference to him, which doesn't contain the necessary information. Which means you'd have to have known him personally to be sure of all the elements here. It's not good form to diss a tribute puzzle but unless I have missed some information available to the public, several solvers will be denied the satisfaction of understanding what's going on even when they complete the grid.