Marshall Blutcher Gardner
Marshall Blutcher Gardner (1854-1937) was a Canadian-born author of a Hollow Earth theory that posits there is a sun at the centre of our planet's interior, and that the other planetary bodies in our solar system are constituted likewise (based on his viewing of photographs of Mars). He was born in Hamilton, Canada West on November 30, 1854. He died in Aurora, Illinois on 24 January 1937.
His works were:
Gardner, Marshall B. (1913), A Journey to the Earth's Interior; or, Have the Poles Really Been Discovered, Aurora, Illinois: The Author
Gardner, Marshall B. (1920), A Journey to the Earth's Interior; or, Have the Poles Really Been Discovered, Aurora, Illinois: The Author — [revised edition, nearly 400 pages added]
US 1096102, Gardner, Marshall B., "Geographical Apparatus", published 1914-05-12 — [plans for a hollow earth globe with "geographical indications illustrating continents which according to the theory of the inventor exist upon the inner surface of the globe."]