Denton is widely known for enduring almost eight years of grueling conditions as an American prisoner of war (POW) in North Vietnam after his jet was shot down in 1965, and being the first of all the POWs that were held captive and finally released by Hanoi to step off an American plane during Operation Homecoming in February 1973. As one of the earliest and highest ranking officers to be taken prisoner in North Vietnam, Denton was forced by his captors to participate in a 1966 televised propaganda interview which was broadcast in the United States. While answering questions and feigning trouble with the blinding television lights, Denton blinked his eyes in Morse code, spelling the word "TORTURE" — and confirming for the first time to U.S. Naval Intelligence that American POWs were in fact being tortured.
In 1976, Denton wrote When Hell was in Session about his experience in captivity, which was made into the 1979 film with Hal Holbrook. Denton was also the subject of the 2015 documentary Jeremiah produced by Alabama Public Television.
Denton was born in Mobile, Alabama, the oldest of three brothers, and the son of Jeremiah, Sr. and Irene (Steele) Denton. He attended McGill-Toolen Catholic High School and Spring Hill College in Mobile, Alabama.
In June 1943, he entered the United States Naval Academy in Annapolis, Maryland, and graduated three years later in the accelerated Class of 1947 on June 5, 1946. His 34-year naval career included service on a variety of ships and on aircraft, including airships (blimps). His principal field of endeavor was naval operations. He also served as a test pilot, flight instructor, and commanding officer of an attack squadron flying the A-6 Intruder.
In 1957, he was credited with revolutionizing naval strategy and tactics for nuclear war as architect of the "Haystack Concept." This strategy called for concealing aircraft carriers from radar by intermingling with commercial shipping and avoiding formations suggestive of a naval fleet. The strategy was simulated in maneuvers and demonstrated effectiveness, allowing two aircraft carrier fleets thirty-five simulated atomic launches before aggressor aircraft and submarines could repel them. He went on to serve on the staff of the Commander, U.S. Sixth Fleet at the rank of Commander (O-5) as Fleet Air Defense Officer.
Denton graduated from the Armed Forces Staff College and the Naval War College, where his thesis on international affairs received top honors by earning the prestigious President's Award. In 1964, he received the degree of Master of Arts in International Affairs from George Washington University in Washington, D.C.
Denton served as a United States Naval Aviator during the Vietnam War. In February 1965, he became the Prospective Commanding Officer of Attack Squadron Seventy-Five (VA-75) and served aboard the aircraft carrier USS Independence (CVA-62).
- Prisoner of War
On July 18, 1965, then-Commander Denton was flying an A-6A Intruder jet (Bureau Number 151577) and leading twenty-eight aircraft from the Independence stationed in the South China Sea, on a bombing mission in North Vietnam. He and Lieutenant (JG) Bill Tschudy, who was his co-pilot, navigator, and bombardier, were forced to eject from their plane after it was hit by enemy antiaircraft fire and going down out of control over the village of Thanh Hoa near Hanoi in North Vietnam. Both Americans were quickly captured and taken prisoner.
Denton and Tschudy were held as prisoners of war for almost eight years, four of which were spent in solitary confinement. Denton was notable for his leadership during the Hanoi March in July 1966, when he and over 50 American prisoners were paraded through the streets of Hanoi and beaten by North Vietnamese civilians. Denton is best known from this period of his life for the 1966 televised press conference in which he was forced to participate as an American POW by his North Vietnamese captors. He used the opportunity to send a distress message confirming for the first time to the U.S. Office of Naval Intelligence and Americans that American POWs were being tortured in North Vietnam. He repeatedly blinked his eyes in Morse code during the interview, spelling out "T-O-R-T-U-R-E". He was also questioned about his support for the U.S. war in Vietnam, to which he replied: "I don't know what is happening, but whatever the position of my government is, I support it fully. Whatever the position of my government, I believe in it, yes sir. I am a member of that government, and it is my job to support it, and I will as long as I live." While a prisoner, he was promoted to the rank of captain. Denton was later awarded the Navy Cross and other decorations for heroism while a prisoner of war.
Denton was put in the "Hanoi Hilton" and the "Zoo" prison and prison camp and "Little Vegas" and "Alcatraz" prisons. In "Alcatraz", he became part of a group of American POWs known as the "Alcatraz Gang". The group consisted of George Coker, Harry Jenkins, Sam Johnson, George McKnight, James Mulligan, Howard Rutledge, Robert Shumaker, James Stockdale (he graduated with Denton from the Naval Academy), Ronald Storz, and Nels Tanner. They were put in "Alcatraz" and solitary confinement to separate them from other POWs because their strong resistance led other POWs in resisting their captors. "Alcatraz" was a special facility in a courtyard behind the North Vietnamese Ministry of National Defense, located about one mile away from Hoa Lo Prison. Each of the American POWs spent day and night in windowless 3-by-9-foot (0.91 m × 2.74 m) cells mostly in irons.
- Post-war captivity
On February 12, 1973, both Denton and Tschudy were released in Hanoi by the North Vietnamese along with numerous other American POWs during Operation Homecoming. Stepping off the jet back home in uniform, Denton said: "We are honored to have had the opportunity to serve our country under difficult circumstances. We are profoundly grateful to our Commander-in-Chief and to our nation for this day. God bless America." The speech has a prominent place in the 1987 documentary, Dear America: Letters Home from Vietnam.
Denton was briefly hospitalized at the Naval Hospital Portsmouth, Virginia, and then was assigned to the Commander, Naval Air Forces, U.S. Atlantic Fleet, from February to December 1973. In January 1974, Denton became the commandant of the Armed Forces Staff College in Norfolk, Virginia (now known as the Joint Forces Staff College), to June 1977. His final assignment was as special assistant to the Chief of Naval Education and Training at Naval Air Station Pensacola, Florida, from June 1977 until his retirement from the Navy on November 1, 1977 with the rank of Rear Admiral.
He wrote his book in 1976, When Hell was in Session, detailing his detention as an American POW in North Vietnam, which was made into a television movie of the same title in 1979, starring Hal Holbrook as Denton.
Denton accepted a position with the Christian Broadcasting Network (CBN) as a consultant to CBN founder and friend, Pat Robertson, from 1978 to 1980. During his time with CBN, both Denton and Robertson repeatedly expressed support for the Contra forces in Nicaragua. In 1981, he founded and chaired the National Forum Foundation. Through his National Forum Foundation, Denton arranged shipments of donated goods to countries in need of aid.
In 1980, Denton ran as a Republican for a U.S. Senate seat from his home state of Alabama. In the primary election, he easily defeated former U.S. Congressman Armistead Selden, who was the candidate of choice of the Republican establishment in the state. He then achieved a surprise victory with 50.15 percent of the vote in November over Democrat Jim E. Folsom, Jr., who himself had defeated the incumbent, Donald W. Stewart, in the Democratic primary. In doing so, Denton became the first and only retired Navy admiral elected to the United States Senate. He was the first Republican to be popularly elected in Alabama since the direct election of U.S. Senators began in 1914, the first Republican senator since Reconstruction to represent Alabama in the U.S. Senate, and the first Catholic to be elected to statewide office in Alabama. Compiling a conservative voting record in the U.S. Senate, Denton was featured in a 1981 article in Time Magazine called "An Admiral from Alabama".
As a Senator, Denton was most outspoken on issues related to the preservation of the nuclear family, a goal that he sought to pursue through a $30 million bill to push chastity among teenagers.  Denton also chaired a subcommittee on internal security and terrorism, which focused on communist and Soviet threats. By the mid-1980s, he told Time magazine at the outset of the decade, "We will have less national security than we had proportionately when George Washington’s troops were walking around barefoot at Valley Forge." 
In 1986, he narrowly lost his bid for reelection to the U.S. Senate, receiving 49.72 percent of the vote against U.S. Congressman Richard Shelby, a Democratic conservative who became a Republican senator after the 1994 elections.
In 2007, Denton's first wife and the mother of his seven children, the former Katherine Jane Maury, died after sixty-one years of marriage. He subsequently married Mary Belle Bordone.
- "United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/V1PV-TV3 : accessed 28 Mar 2014), Irene S Denton, Ward 8, Mobile, Mobile City, Mobile, Alabama, United States; citing enumeration district (ED) 49-98A, sheet 8B, family 161, NARA digital publication of T627, roll 65.
- "Alabama, County Marriages, 1809-1950," index and images, FamilySearch ( : accessed 28 Mar 2014), Jeremiah Andrew Denton and Irene Claudia Steele, 22 Aug 1922; citing Mobile County; FHL microfilm 1550499.
- Angevine, Robert (Spring 2011). "Hiding in Plain Sight: The US Navy and Dispersed Operations Under EMCON 1956-1972". Naval War College Review. 64 (2): 80–82. Retrieved 9 January 2012.
- Stuart I. Rochester and Frederick Kiley, Honor Bound: American Prisoners of War in Southeast Asia 1961-1973 (Annapolis: Naval Institute Press, 1998)
- "Eyewitness". Archives.gov. Retrieved 2012-11-19.
- Adams, Lorraine. "Perot's Interim Partner Spent 7½ Years As Pow", Dallas Morning News, March 11, 1992. Accessed July 2, 2008. "He was one of the Alcatraz Gang – a group of eleven prisoners of war who were separated because they were leaders of the prisoners' resistance."
- Rochester, Stuart; and Kiley, Frederick. "Honor Bound: American Prisoners of War in Southeast Asia, 1961–1973", 2007, Naval Institute Press, ISBN 1-59114-738-7, via Google Books, p. 326. Accessed July 8, 2008.
- Stockdale, James B. "George Coker for Beach Schools", letter to The Virginian-Pilot, March 26, 1996.
- Johnston, Laurie (December 18, 1974). "Notes on People, Mao Meets Mobutu in China". The New York Times. Retrieved May 3, 2010. Dec 18, 1974
- Kimberlin, Joanne (2008-11-11). "Our POW's: Locked up for 6 years, he unlocked a spirit inside". The Virginian Pilot. Landmark Communications. pp. 12–13. Retrieved 2008-11-11.
- Jones, Matthew (2008-08-13). "Ex-Vietnam War POW a man committed to cooperation | HamptonRoads.com | PilotOnline.com". HamptonRoads.com. Retrieved 2012-11-19.
- ISBN 978-1935071150
- "Ex-senator and Vietnam POW who blinked "torture" in Morse code dies". CBS News. 28 March 2014. Retrieved 6 October 2014.
- An Admiral from Alabama Time. 8 June 1981. Retrieved 11 September 2016.
- "Jeremiah A. Denton Jr., Vietnam POW and U.S. senator, dies". The Washington Post. March 28, 2014. Retrieved March 28, 2014.
- Adm Jeremiah Andrew Denton, Jr at Find a Grave and Jane Maury Denton at Find a Grave
|Wikimedia Commons has media related to Jeremiah Denton.|
- Biography of Senator Denton in the Biographical Directory of the US Congress
- Appearances on C-SPAN
- Admiral Jeremiah Denton Foundation
- Video of Denton's POW interview from U.S. National Archives – To find this segment specifically, choose Contents > Scenes From Hell > Denton.
- Jeremiah Denton Jr. at the Encyclopedia of Alabama
- http://www.snopes.com/politics/religion/denton.asp Article on RADM Denton not being allowed to speak before California Assembly on July 4, 2004
- Funeral Slide Show
|United States Senate|
|United States Senator (Class 3) from Alabama
Served alongside: Howell Heflin
|Alabama's delegation(s) to the 97th–99th United States Congresses (ordered by seniority)|
|97th||Senate: H. Heflin • J. Denton||House: W. Dickinson • J. Edwards • T. Bevill • W. Nichols • R. Flippo • R. Shelby • A. Smith|
|98th||Senate: H. Heflin • J. Denton||House: W. Dickinson • J. Edwards • T. Bevill • W. Nichols • R. Flippo • R. Shelby • B. Erdreich|
|99th||Senate: H. Heflin • J. Denton||House: W. Dickinson • T. Bevill • W. Nichols • R. Flippo • R. Shelby • B. Erdreich • S. Callahan|