Was just poking around and re-reading some crumbs about UK and I remembered the Cambridge 5. So was just sort of randomly following names and came upon this one and it kind of blew my mind. Sorry if this has already been posted but better safe than sorry.
Guy Liddell-
Liddell was born on 8 November 1892 at 64 Victoria Street, London, the son of Capt. Augustus Frederick Liddell RA, a retired Royal Artillery officer, and his wife Emily Shinner, who died when Liddell was eight years old. He was the younger brother of Capt. Cecil Frederick Joseph Liddell, who served as Head of MI5's Irish section from 1939, and David Edward Liddell; and was a second cousin of Alice Pleasance Liddell, the child friend of Lewis Carroll who was the basis for the books Alice's Adventures in Wonderland and Through The Looking Glass.[1][2][3][notes 1]
https://en.wikipedia.org/wiki/Guy_Liddell
Seems interesting.