David Glasgow Farragut was a flag officer of the United States Navy during the American Civil War. He was the first rear admiral, vice admiral, and admiral in the United States Navy. He is remembered for his order at the Battle of Mobile Bay, usually paraphrased as "Damn the torpedoes, full speed ahead" in U.S. Navy tradition.
James Hooker Strong was a rear admiral of the United States Navy, who served during the American Civil War.
John Rodgers was an admiral in the United States Navy. He began his naval career as a commander in the American Civil War and during his postwar service became an admiral.
Nehemiah Mayo Dyer was a rear admiral in United States Navy, who served during the American Civil War and Spanish–American War. He was one of the few individuals to have served in both the Battle of Mobile Bay during the Civil War and the Battle of Manila Bay during the Spanish–American War.
Edmund Ross Colhoun was a rear admiral of the United States Navy who served during the Mexican War and the American Civil War, in which he was commended for his participation in the bombardment and capture of Fort Fisher.
James Shedden Palmer was an officer in the United States Navy during the Civil War. He was later promoted to rear admiral.
John Grimes Walker was an admiral in the United States Navy who served during the Civil War. After the war, he served as Chief of the Bureau of Navigation, head of the Lighthouse Board, and commander-in-chief of the Squadron of Evolution and of the North Atlantic Squadron. In retirement, he led commissions to investigate the construction of a Central American canal connecting the Atlantic and Pacific Oceans.
John Henry Upshur was an admiral in the United States Navy who served during the Mexican–American War and the American Civil War.
John Pritchett Gillis was a commodore in the United States Navy. He served in the Navy from 1825 until 1866 and saw military action in the Mexican-American War and the U.S. Civil War.
Clark Henry Wells was a career officer in the United States Navy. He served in the American Civil War, as well as for two subsequent decades before retiring as a rear admiral.
Andrew Ellicott Kennedy Benham was an American rear admiral. In his early career, he served in China, the Pacific and Paraguay. During the American Civil War, he took part in the capture of Port Royal, South Carolina, and patrolled the Texas coast as part of the West Gulf Blockading Squadron.
Samuel Perry "Powhatan" Carter was a United States naval officer who served in the Union Army as a brigadier general of volunteers during the American Civil War and became a rear admiral in the postwar United States Navy. He received a nomination for appointment to the grade of brevet major general on January 13, 1866, two days before he was mustered out of the volunteers, to rank from the omnibus date of March 13, 1865. The nomination was confirmed by the United States Senate on March 12, 1866. He was the first and thus far only United States officer to have been commissioned both a general officer and a Naval flag officer.
Rear Admiral Frederick W. Rodgers was an officer in the United States Navy. He fought in the American Civil War and rose to be the last commander of the Asiatic Squadron. He was a grandson of U.S. Navy Commodore Matthew C. Perry.
Rear Admiral William Mayhew Folger was an officer in the United States Navy. He served in the American Civil War without seeing action. He filled a wide range of roles, including Chief of the Bureau of Ordnance, over the following 30 years. He fought in the Spanish–American War as captain of the protected cruiser USS New Orleans. Folger served as a lighthouse inspector before becoming commander of the Philippine Squadron during the Philippine–American War, and was briefly Commander-in-Chief of the United States Asiatic Fleet. He retired in 1905 as a rear admiral.
Rear Admiral George Henry Cooper was an officer in the United States Navy. During his long naval career, he served on the African Slave Trade Patrol, and fought in the Second Seminole War, the Mexican War, the American Civil War, and the Korean Expedition, and rose to command of the North Atlantic Squadron.
Edward Tatnall Nichols was a United States Navy rear admiral.
Samuel Rhoads Franklin was a rear admiral in the United States Navy. He participated in the important Battle of Hampton Roads off the U.S. state of Virginia in 1862, served as the superintendent of the U.S. Naval Observatory in Washington, D.C., from 1884 to 1885, and was president of the International Marine Conference of 1889.
Ebenezer Farrand was an American Commodore that served in the Confederate States Navy and was notable for his service at the Battle of Drewry's Bluff as well as his ship construction at Selma, Alabama.
Levin Mynn Powell was a rear admiral of the United States Navy. He was known for his service in the Second Seminole War and developing riverine warfare techniques to fight the Seminole. He also served with the Union Navy in the American Civil War.
Henry Lycurgus Howison was a rear admiral in the United States Navy. He was an officer in the Union Navy throughout the American Civil War, participating in the Battle of Port Royal and Battle of Mobile Bay. He later served as professor and department head at the United States Naval Academy.
United States 
United States Navy 
Commodore