
Timothy I. Ahern was a Major General in the United States Air Force.

Charles Cread Baldwin is a former Chief of Chaplains of the United States Air Force.
Luther Prentice Bradley was an American soldier who served as a Union general officer during the American Civil War.

William Pigott Cronan was a United States Navy Captain who served as the 19th Naval Governor of Guam. During his tenure in the Navy, he became decorated, commanded a number of ships, and came to be known as "the most popular man in the Navy". He participated in the Battle of Santiago de Cuba during the Spanish–American War. In 1903, he gained some attention for his participation in the rescue of a Venezuelan fisherman off the coast of La Guaira under bad conditions. Both the Venezuelan government and navy command praised him for the way he carried out the operation. He became a national news story in 1907 while serving aboard USS Connecticut during a training operation. When a gun nearly exploded because of leaking powder; he shoved his hand into the gun's breechblock, preventing the explosion and losing two of his fingers in the process.

Lawrence Joseph "Larry" DeNardis was an American politician who served as a U.S. Congressman for the state of Connecticut. He was also president of the University of New Haven.

Henry Eld was a United States Navy officer, geographer, and Antarctic explorer.
Edward Ellsberg, OBE was an officer in the United States Navy and a popular author. He was widely known as "Commander Ellsberg".

Andrew Hull Foote was an American naval officer who was noted for his service in the American Civil War and also for his contributions to several naval reforms in the years prior to the war. When the war came, he was appointed to command of the Western Gunboat Flotilla, predecessor of the Mississippi River Squadron. In that position, he led the gunboats in the Battle of Fort Henry. For his services with the Western Gunboat Flotilla, Foote was among the first naval officers to be promoted to the then-new rank of rear admiral.

John Foster Furcolo was an American lawyer, writer, and Democratic Party politician from Massachusetts. He was the state's 60th governor, and also represented the state as a member of the United States House of Representatives. He was the first Italian-American governor of the state, and an active promoter of community colleges.

Bernard Francis Grabowski was an American politician who served as a two-term U.S. Representative from Connecticut.

Brigadier General Terence John Hildner was a United States Army General Officer who served as commander of the 13th Sustainment Command (Expeditionary) from 2010 until his death in 2012. He is the second highest-ranking American officer to die while serving in the war in Afghanistan.

Deane Keller was an American artist, academic, soldier, art restorer and preservationist. He taught for forty years at Yale University's School of Fine Arts and during World War II was an officer with the Monuments, Fine Arts, and Archives program.

Henry Leavenworth was an American soldier active in the War of 1812 and early military expeditions against the Plains Indians. He established Fort Leavenworth in Kansas, and named after him is the city of Leavenworth, Kansas, Leavenworth County, Kansas, and the Leavenworth Penitentiary.

Joseph King Fenno Mansfield was a career United States Army officer, civil engineer, and a Union general in the American Civil War, mortally wounded at the Battle of Antietam.

Brigadier General Alfred Judson Force Moody was a United States Army officer who served with SHAEF during World War II, and as the Assistant Division Commander of the 1st Cavalry Division during the Vietnam War.

Robert Burton Nett was a United States Army officer and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions during the campaign to recapture the Philippines in World War II.

Allen Lang Seaman was born on 21 December 1916 at New Haven, Connecticut, and educated at Duke University. He enlisted in the United States Naval Reserve on 15 August 1938 and was ordered to Naval Air Station Pensacola as an Aviation Cadet five months later. Designated a Naval Aviator on 19 October 1939, he was commissioned Ensign in the Naval Reserve on 24 November.

Benjamin McLane Spock was an American pediatrician whose book Baby and Child Care (1946) is one of the best-selling volumes in history. The book's premise to mothers is that "you know more than you think you do."

Henry Charles Stackpole III was a lieutenant general in the United States Marine Corps. He was an alumnus of Princeton University.

Joseph Gilbert Totten fought in the War of 1812, served as Chief of Engineers and was regent of the Smithsonian Institution and cofounder of the National Academy of Sciences.
Charles William Whiting Wooster, was a Commander-in-Chief of the Chilean Navy. He was born in New Haven, Connecticut, in 1780, being the grandson of General David Wooster.