Professor Peach

Professor Peach (first name Gerald) was one of the guests at the weekend party hosted by Lady Clemency Eddison in 1926.

He had discovered that Lady Eddison had had a son in secret that she had given up 40 years prior to these events. It turned out to be the Reverend Arnold Golightly, who was actually a vespiform. After confirming to himself about Clemency's secret child Golightly entered the library and became his true self and murdered the professor with a piece of lead piping. (DW: The Unicorn and the Wasp)

His death wasn't mourned by the other guests who still managed to take dinner as they were british and moneyed.