I worked for him as well, from 1988 through 1990. He mentored me as I helped sysadmin various BSD machines the university was beta-testing (CCI Tahoe and Gould NP-1), and supervised my work fixing bugs in the Berkeley Pascal compiler. It was fun watching him put his early-model Motorola cell phone into service mode and tweak register values... while he was driving. And of course I enjoyed finding him in his office at all sorts of weird hours and listening to him rant about various technical topics.
That is awesome. The NP-1s were great. I spent lots of time working on en.ecn.purdue.edu - Some tape drivers, some maintenance, and lots of software projects - it was really cool that in those days everyone was on the same machine, working from terminals. Good times!