Hegdahl's Resilience: The Story of a Vietnam War POW
The history of the Vietnam War is marked by stories of extraordinary endurance and strategic wit. Among these is the account of a young United States Navy sailor who turned a position of extreme vulnerability into a mission of intelligence gathering. By utilizing psychological manipulation and an incredible memory, he became a vital link between captured American servicemen and the outside world.
Early Life and Naval Service
Born on September 3, 1946, to parents of Norwegian descent, Hegdahl grew up in a devout Lutheran household. He completed his secondary education at Clark High School in Clark, South Dakota, graduating on May 24, 1966. Following graduation, he enlisted in the United States Navy. After completing his recruit training and advanced schooling, he attained the rank of Seaman Apprentice and was deployed to Dixie Station.
Capture and Imprisonment
On the morning of April 6, 1967, while serving aboard the USS Canberra in the Gulf of Tonkin, 20-year-old Hegdahl was knocked overboard by the blast from a 5-inch gun mount. After spending several hours treading water, he was rescued by Vietnamese fishermen. However, his relief was short-lived; he was soon handed over to Vietnamese militiamen, who assaulted him with rifles before transporting him to the notorious Hanoi Hilton prison.
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Upon arrival, Hegdahl faced intense interrogation. His captors were skeptical of his claim that he had been blown overboard, suspecting instead that he was a commando or a secret agent. To survive and reduce the intensity of the maltreatment, Hegdahl adopted a strategic persona, pretending to be of low intelligence. This "bumpkin" demeanor, combined with his youthful appearance, eventually convinced the interrogators that he was of no value for their propaganda efforts.
The "Incredibly Stupid One"
To further deceive his captors, Hegdahl pretended to be illiterate when asked to write statements against the United States. The North Vietnamese, believing he could be easily indoctrinated, even assigned a teacher to help him learn to read. When Hegdahl continued to appear incapable of learning, the captors gave up on him. He became known among the guards as "The Incredibly Stupid One," a label that granted him an unusual amount of freedom within the camp.
Intelligence Gathering and Resistance
While appearing compliant, Hegdahl was actively working to support his fellow prisoners. He learned to use a shibboleth—a specific custom or phrase used to distinguish a particular group of people—to authenticate the identity of new prisoners. In this case, captives used the rhythm of "Shave and a Haircut," tapping the first five notes against cell walls to identify fellow Americans.
Once identity was confirmed, prisoners communicated via a tap code, a system of rhythmic knocks used to send messages secretly. With the assistance of Joseph Crecca, a U.S. Air Force officer, Hegdahl undertook the monumental task of memorizing the personal details of approximately 256 other prisoners, including their names, capture dates, and methods of capture. To retain this vast amount of data, he used the melody of the children's song "Old MacDonald Had a Farm" as a mnemonic device.
Hegdahl's resistance extended to sabotage and reconnaissance. He disabled five enemy trucks by putting dirt in their fuel tanks. Additionally, he convinced his captors he needed new glasses, using the trip to the city of Hanoi to memorize the route from the prison to the city center.
Release and Aftermath
On August 5, 1969, the North Vietnamese released three POWs as a propaganda gesture: Navy Lieutenant Robert Frishman, Air Force Captain Wesley Rumble, and Hegdahl. Although the prisoners had previously agreed that no one should accept early release, they made an exception for Hegdahl. His release was strategic; he was the only one capable of providing a comprehensive list of the POWs still being held and detailing the conditions of their imprisonment.
In December 1970, Ross Perot sent Hegdahl to the Paris Peace Talks. There, he confronted North Vietnamese officials with first-hand evidence of the mistreatment of American prisoners.
Key Facts
- Capture Date: April 6, 1967, after being blown overboard from the USS Canberra.
- Prison Location: The "Hanoi Hilton."
- Intelligence Work: Memorized data for approximately 256 fellow prisoners.
- Mnemonic Method: Used the song "Old MacDonald Had a Farm" to store information.
- Sabotage: Disabled five trucks by contaminating fuel tanks with dirt.
- Release Date: August 5, 1969.
| Category | Details |
|---|---|
| Rank at Capture | Seaman Apprentice |
| Vessel | USS Canberra |
| Primary Tactic | Feigned low intelligence to gain trust |
| Communication Method | Tap code and "Shave and a Haircut" shibboleth |
| Post-Release Action | Testified at Paris Peace Talks (1970) |
Frequently Asked Questions
How did Hegdahl survive the interrogations at the Hanoi Hilton?
Hegdahl survived by pretending to be of low intelligence and illiterate. By appearing as a "bumpkin" who was not a threat and had no value for propaganda, he reduced the physical maltreatment he faced and gained more freedom within the camp.
What was the "shibboleth" used by U.S. prisoners?
The prisoners used the rhythm of the phrase "Shave and a Haircut," tapping the first five notes against the cell walls. This allowed them to verify that a new prisoner was indeed an American before initiating secure communication.
How did Hegdahl memorize information for 256 prisoners?
He worked with U.S. Air Force officer Joseph Crecca and used the melody of the children's song "Old MacDonald Had a Farm," repeating it constantly to help him retain names, capture dates, and other personal details.
Why was Hegdahl allowed to be released early in 1969?
He was released as part of a North Vietnamese propaganda move. His fellow POWs agreed to his early release specifically so he could inform the world about the names of the remaining captives and the conditions they were enduring.
What did Hegdahl do after his release from captivity?
After his discharge, he was sent to the Paris Peace Talks in December 1970 by Ross Perot, where he provided first-hand testimony regarding the mistreatment of prisoners of war.