Kirk Allen

Some have theorized[2] that the series was the Barsoom books, by Edgar Rice Burroughs, featuring the main character John Carter.

[1] He was incredibly thorough, creating full-color maps, sketches, a glossary of names and terms, socio-economic data, et cetera.

[3] Paul Linebarger (better known by his nom de plume, Cordwainer Smith) was long rumored to have been the original "Kirk Allen".

[9] Physicist Saul-Paul Sirag has theorized that Allen was really a research physicist named Francis Burton "Kiko" Harrison II, son of American politician and diplomat Francis Burton Harrison, citing areas of biographical similarity as well as a few possible instances of deliberate obfuscation.

Jacques Vallee wrote about the case in his book Revelations: Alien Contact and Human Deception, comparing it to the Ummo phenomenon.

The first in the Barsoom series. The character of John Carter is seen at left.