Donald E. Keyhoe

Donald Edward Keyhoe (June 20, 1897 - November 29, 1988) was an American Marine Corps naval aviator, manager of the promotional tours for aviators, and writer on many aviation-related matters, including unidentified flying objects, a field in which he earned renown as a co-founder of National Investigations Committee on Aerial Phenomena (NICAP).

Pulp Shorts
Keyhoe also wrote stories beginning in the 1930s through the 1940s, featuring characters the likes of: Dr. Yen Sin, a Fu Manchu-type mastermind of the "Invisible Empire"; Michael Traile, "the Man Who Never Slept", Yen Sin's primary adversary; Captain Philip Strange, "The Phantom Ace of G-2" and "The Brain-Devil", a psychic ace fighter pilot during the First World War (in Flying Aces); Richard Knight, a.k.a. Secret Agent "Q", a WWI veteran who could see in the dark; Eric Trent, a magician and freelance flier; the Devil Dog Squadron; and the Vanished Legion.