[2] Wingfield was exempted from National Service due to poor eyesight and had various office jobs in the East End before joining the Petrofina oil company.

[1] His first radio play, Our West Ladyton Branch was accepted by the BBC in 1968 and two more were then commissioned, at which point Wingfield resigned from his job.

[2] Wingfield was a very private man, always avoiding book launches and publishing parties, and being rarely photographed.

[3] In 1982, Leslie Sands played Sergeant Fowler in Wingfield's BBC radio thriller Outbreak of Fear, a murder mystery set in the West Country.

In 1987, Bob Peck starred in the Wingfield BBC radio drama Deadfall, about a demolition man whose past catches up with him.

[4] After a dispute with the BBC in 1984 he submitted a number of radio plays under the pseudonym "Arthur Jefferson", (the real name of Stan Laurel) one such play being The Killing Season broadcast in six parts that same year and starring Sean Barrett, Michael Jenner, John Hollis, and Allan Cuthbertson; the serial was essentially a palimpsest of his earlier serial Outbreak of Fear.