Trevor N. Dupuy was born on 3 May 1916 on Staten Island, New York to R. Ernest and Laura Nevitt Dupuy. His father, also an Army officer, afforded young Trevor the opportunity to travel extensively throughout the world. The elder Dupuy was a respected journalist before his entry into active service and later became a prominent military historian.
Primarily because of his father’s influence, young Trevor developed a passion for military history, a trait for which he would later gain considerable recognition. These influences early in life provided Trevor with the intellectual development that ultimately would make him a respected voice at the Pentagon and on Capitol Hill.
After a year at St. John’s College in New Jersey, Trevor received an appointment to West Point in 1934. While at USMA, he earned a reputation as an excellent military historian. He served on the debating society all four years and became its president in his final year. He also sang in the Catholic choir.
After graduation from West Point, and receiving his commission in the Field Artillery, Trevor became the D Battery Executive Officer of the 7th Field Artillery, Ft. Ethan Allen, VT. Later in life he would be heavily involved with the 7th Field Artillery Association, eventually becoming the regiment’s honorary colonel, a position he held with great pride.
With the country’s entry into World War II, Trevor saw rapid advancement, eventually rising to command the 229th Field Artillery Battalion in 1943. Shortly thereafter, he was assigned to Burma to command the 1st Field Artillery Battalion of the Chinese 38th Division. For the next eighteen months Trevor saw almost constant action against the Japanese, longer than any other American in Burma. His assignment in Burma concluded in 1945 with Trevor as the division artillery’ commander of the British 36th Infantry Division.
Trevor’s combat decorations include the Legion of Merit, the Bronze Star (Valor), the Air Medal, Britain’s Distinguished Service Order (the highest decoration awarded to foreigners), and the Chinese national government’s award of Cloud and Banner (1st and 2nd Grade).
The next several years saw Trevor in a wide variety of positions, ranging from duty at the Pentagon, command of the 5th Field Artillery Battalion in Germany and membership on the original SHAPE staff in Paris.
Between 1952 and 1956, Trevor was at Harvard University first as Professor of Military Science and Tactics and later as a member of the original faculty of the Harvard Defense Studies Program.
Following his assignment at Harvard, he became the director of the Ohio State University Military History Course. Upon the completion of his teaching assignment at Ohio State, Trevor retired in 1958 at the rank of colonel.
He was then invited to return to Burma, this time as a visiting professor at the International Relations Program at Rangoon University, Burma.
In 1960, he returned to the United States to employment at the Institute for Defense Analysis. In 1962, Trevor began his own company- again in collaboration with Ernest Dupuy- dedicated to the study and analysis of military history and called the Historical Evaluation and Research Organization or HERO.
In later years, Trevor was President of Data Memory Systems and finally of The Dupuy Institute, the organization he headed at the time of his death.
A prolific writer of military history and theory, Trevor wrote over 90 books in his lifetime. Many of these works were highly acclaimed and are still in circulation. In 1942, To the Colors was published, the first of many collaborative writing efforts with Ernest Dupuy. The father-and-son team later co-authored the landmark work in military history, The Encyclopedia of Military History, now in its fourth revised edition. In addition to the books, he authored several hundred magazine articles.
In the late 1960s, he began to develop a methodology for forecasting battlefield attrition and material losses. What began as an attempt to understand the effectiveness of leadership in combat became a comprehensive computerized model. This model provided accurate combat loss predictions in Lebanon, Panama and the Persian Gulf.
Trevor was frequently consulted by the media for his opinion on military topics and received considerable recognition during the Gulf War. In December 1990, he was called before the House Armed Services Committee to discuss potential strategies and casualties coalition forces would incur during a land war against Iraq.
He was the father of 9 children: Trevor, Jr., Ernest II, George, Laura, Charles, Mirande, Arnold, Fielding, and Signe, and is survived by wives Christine and Yun.
- GEN & Mrs. Andrew J. Goodpaster USA, Retired