Like the Chilean diplomat Miguel Serrano, Koehl was influenced by the occultism of the Greek–French writer Savitri Devi.
He was also a close friend of the Dutch World War II Nazi collaborator Florentine Rost van Tonningen.
Born on January 22, 1935, in Milwaukee, Wisconsin to Hungarian immigrants of German descent, Koehl studied journalism at the University of Wisconsin–Milwaukee[1] and played violin with the civic opera.
A teenage antisemitic activist, Koehl worked with hate groups on the East Coast and the South before joining George Lincoln Rockwell's American Nazi Party and the Marine Corps.
At the end of his life, Koehl was the leader of the World Union of National Socialists, despite his affiliation with Esoteric Nazism having alienated some members.