Herbert Hans Haupt (December 21, 1919 – August 8, 1942) was an American spy and saboteur for Nazi Germany during World War II under Operation Pastorius.

At one point, an acquaintance, Lawrence J. Jordan, punched Haupt in the face after he showed at a party dressing in a storm trooper's uniform and speaking in favor of Nazism.

Haupt and Wergin arrived in France at the time of the Japanese attack on Pearl Harbor, following which Adolf Hitler had declared war against the United States.

[7] Haupt, Edward Kerling, Hermann Neubauer, Werner Thiel, Heinrich Heinck, and Richard Quirin were all executed on August 8, 1942, in the District of Columbia's electric chair.

U.S. District Judge William Joseph Campbell sentenced Hans Haupt, Walter, and Otto to death, and Erna, Lucille, and Kate to 25 years in prison each.

[11]The defendants in this case stand convicted of the crime of treason and it now becomes the solemn duty of the Court to fix punishment and impose sentence.

Where offenders stand convicted of serious crimes against the United States, it is customary for the Court, in pronouncing sentence, to recapitulate rather fully the testimony offered during the trial.

Here, an able, considerate and patient jury of men and women from every walk of life, representative of the finest ideals of our American commonwealth was carefully chosen by both sides.

This jury heard the evidence and rendered a verdict after listening to lengthy summations and arguments ably presented by counsel.

The five days preceding the argument on the motion for a new trial were devoted exclusively by the Court to a careful and exhaustive review of this abstract and of the transcript of the testimony herein.

In pronouncing sentence upon these six men and women, this Court is constrained to give full consideration to the fact that our nation, and every man, woman and child in it, are engaged in a global death struggle against forces of tyranny and evil unprecedented in the history of mankind.

Deliberately and in secret, under the cloak of American citizenship, the agents and helpers of the saboteur scheme and connive to destroy their neighbors and this nation.

Likewise the sentence must serve notice upon the enemy that the cunningly devised scheme for the use of American citizens of German birth as pawns in the game of sabotage and espionage in this Country is doomed to failure.

Citizens threatened with the torture of their relatives in Germany for failure to assist German agents in this Country must be impressed with the personal danger involved in yielding to such contemptible coercion.

It was apparent on the trial of this cause that each of the woman defendants, though knowing the seriousness and evil nature of her actions, undoubtedly followed the leadership of her husband.

In the case of the husbands, the evidence shows deliberate adhering and giving aid and comfort to an enemy in time of war.

It is, therefore, the judgment of this Court upon the verdict of the jury heretofore returned that the defendants Hans Max Haupt, Erna Emma Haupt, Walter Otto Froehling, Lucille Froehling, Otto Richard Wergin and Kate Martha Wergin, and each of them, are guilty of the crime of treason as charged in the indictment in this cause.

The defendants Erna Emma Haupt, Lucille Froehling and Kate Martha Wergin, and each of them, are sentenced to the custody of the Attorney General to be imprisoned in a penitentiary for a term of twenty-five years and each of them to pay a fine of ten thousand dollars.

In 1957, Hans Haupt was granted clemency by President Dwight D. Eisenhower and deported to Germany on the condition that he would never return to the United States.

In 1959, Wernecke was sentenced to 1 to 5 years in prison for hiring two individuals to bomb the home of his former business partner, albeit this conviction was overturned in 1960.

[15] In 2001, Herbert Haupt was in the news again as President Bush attempted to use military tribunals to try American citizens after the September 11, 2001, attacks.