John A. Dahlgren
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John Adolphus Bernard Dahlgren was a United States Navy officer who founded his service's Ordnance Department and launched significant advances in gunnery.
Dahlgren in uniform, c. 1862
Rear Admiral Dahlgren, on board the USS Pawnee, beside a 50-pounder Dahlgren rifle, one of his bottle-shaped cast-iron cannons, c. 1864
Dahlgren during the American Civil War
Dahlgren's tombstone in Laurel Hill Cemetery
Dahlgren gun
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Dahlgren guns were muzzle-loading naval guns designed by United States Navy Rear Admiral John A. Dahlgren, mostly used in the American Civil War. Dahlgren's design philosophy evolved from an accidenta
John A. Dahlgren
…sizes of craft and shore installations. He then introduced a cast-iron muzzle-loading cannon with vastly increased range and accuracy, known as the Dahlgren gun, that became the U.S. Navy's standard armament. In the Civil War, Dahlgren was made commander of the Washington Navy Yard, where he established the…
John A. Dahlgren standing next to a 50 lb (22.7 kg) Dahlgren rifle aboard USS Pawnee in 1865
A 9 in (229 mm) Dahlgren smoothbore naval gun and crew in the stern pivot position of USS Miami, 1864. (National Archives).
Dahlgren boat howitzer mounted in frigate's launch. The field carriage can be seen in stern
Dahlgren boat howitzer mounted on field carriage