Adm. J.A. Dahlgren, (U.S. Civil War) Black Coffee Mug

'Adm. J.A. Dahlgren (U.S. Civil War)' Admiral John A. Dahlgren was a prominent U.S. Navy officer during the American Civil War. He played a significant role in the development of naval ordnance, particularly in the design of heavy rifled guns that had an impactful effect on naval combat. As a Union officer, he served in several key battles such as Fort Pulaski and Mobile Bay, where his innovative tactics were instrumental to Union victories. Dahlgren's career also extended beyond the Civil War, including service during the Reconstruction period and work in improving the U.S. Navy's gun designs.