William G. Sebold

William G. Sebold
William Sebold and his wife photographed in New York City, 1937.
Born	Gottlieb Adolf Wilhelm Sebold (1899-03-10)March 10, 1899 Mülheim, Rhine Province, German Empire
Died	February 16, 1970(1970-02-16) (aged 70) Napa, California
Occupation	Spy
Spouse	Helen Lena Buchner Sebold
Espionage activity
Allegiance	Germany (double agent)  United States
Agency	Abwehr FBI
Service years	1939–1941
Codename	Tramp
Operations	Duquesne Spy Ring

William G. Sebold (German: Gottlieb Adolf Wilhelm Sebold;^[1] March 10, 1899 – February 16, 1970) was a United States citizen who was coerced into becoming a spy when he visited Germany after being pressured by several high-ranking Nazi members. He informed the American Consul General in Cologne before leaving Germany and became a double agent for the FBI. With the assistance of another German agent, Fritz Duquesne, he recruited 33 agents that became known as the Duquesne Spy Ring. In June 1941, the Federal Bureau of Investigation arrested all of the agents. They were convicted and sentenced to a total of 300 years in prison.