Walter Siegmeister

Walter Isidor Siegmeister (1903 – September 10, 1965), also known as Raymond W. Bernard, Robert Raymond, and Uriel Adriana, was an early 20th-century American alternative health advocate and esoteric writer, who formed part of the alternative reality subculture. He is credited with the merger of the Hollow Earth theory and religious beliefs about UFOs. He also founded several fruitarian or vegetarian utopian communes in several countries.