Champions is where I first ran across his name but he did good work on other games too. The book above turned a hexmap and a few paragraphs of text from the Expert Set into a full-on campaign setting with a really nice balance of detail and breathing room for a DM to use.
Heck, I even liked Wraith Squadron.
This was the first and most useful of the 2E brown books for me. His name's on it.
A lot of people think this is the finest version of D&D published yet, and he was the lead guy on it too.
He was a Texas guy too which made a little more of a connection for me. At a time when most of the gaming "names" seemed to come from the midwest, here was a guy right down I-35 that was putting out stuff with the best of them.
Anyway, so long Mr. Allston. I appreciate your fine work.