Does Mr. Dubinsky have a formal job at Hyde, or is he only the spouse of Mrs. Dubinsky as far as Hyde is concerned? Has Hyde informed parents of his history at Hyde and the problems he encountered?
I imagine that the sheer number of pages this thread contains may well be daunting, but this thread, among a few others, contains quite a lot of material not just about Larry's sexual proclivities, but also those of a number of other former Hyde faculty, etc, and is well worth the reading time invested.
To summarize re. your question: Larry was a former Hyde student in the mid 70s who married another former Hyde student (Donna) and who both returned to teach at Hyde. Several of the current Hyde administration knew Larry as a student, and some knew Donna as well, as some of them were students around the same time.
Larry was... shall we say... a bit too liberal in translating his "affections" for the (female) students into physical channels... He was also in charge of the Dean's Area, and hence privy to student's required confessions of their sexual misadventures and transgressions, which he apparently took great satisfaction in hearing out in a most "thorough" manner.
Hyde was well aware of this problem, as there had been complaints from students for years. Eventually, as Hyde never did anything save make these girls feel pretty shitty for even opening their mouths about such a thing, one of the parents sued re. the sexual assault of their daughter.
Apparently Hyde
still did not see fit to alter Larry's circumstances, hoping that Larry "taking some time off to think about things" should suffice. However, Donna is still employed at Hyde, and least two (I believe) of their kids still attend Hyde, so Hyde rationalizes that Larry's involvement with the Hyde community is necessary for "family reasons." It is my understanding that the Dubinskys live in faculty housing, on or extremely close to the Woodstock campus.