Nick Barratt is Family Detective for London's Daily Telegraph, and resident genealogist on the BBC's Who Do You Think You Are? program. But he somehow missed the fact that his own great-uncle, Ernest Holloway Oldham, was employed by the British Foreign Office, and stuck his head in a gas oven when caught spying for the Soviet Union in 1933. Oldham's widow threw herself into the Thames seventeen years later.
Mr Barratt, who is acknowledged as the foremost researcher in his field, said yesterday that he had paid relatively little attention to his father's side of the family.
"My ancestry is interesting enough on my mother's side and because my uncle had already traced my father's side back to the 18th century I had not studied it much." [Link]