Category
page 1Hollow Earth proponents
Edmond Halley
English astronomer, mathematician, geophysicist, meteorologist and physicist (1656–1742)
Edward Bulwer-Lytton
British statesman and author (1803–1873)
Cyrus Teed
American self-declared messiah
Jeremiah N. Reynolds
American explorer
John Cleves Symmes, Jr.
American army officer and academic
Brinsley Le Poer Trench, 8th Earl of Clancarty
Anglo-Irish noble (1911-1995)
Walter Siegmeister
American esotericist and health writer (1903–1965)
Thomas S. Hinde
American minister and businessman