Origin
The Moon Man was a weird figure who wore costume consisting of a black robe, black gloves topped by a spherical helmet made of slightly mottled one-way glass, so that it resembled the moon, that prevented anyone from seeing his face while letting him see clearly.
He was really Detective-Sergeant Stephen Thatcher who was also the son of the Chief of Police of the city where he lived.
As the Moon Man Thatcher acted as a modern day Robin Hood, stealing from wealthy criminals (and usually leaving them dead) and giving to the poor.
Creators
The Moon Man first appeared in Ten Detective Aces magazine, published by A.A. Wyn’s Ace Magazines, The 38 short stories were written by Frederick C. Davis between 1933 and 1937.
Ace Magazine also published a number of comics during the 40’s, while they never published a Moon Man character the first story in the Pulp series, “The Sinister Sphere” was used as the basis for The Raven in Shure-Fire Comics.
However recently Airship 27 has produced a comic book adventure for the glass helmeted Moon Man.