John Adolph Bernard Dahlgren, (1809–1870)
John Dahlgren next to one of his 4.4-inch or 5.1-inch rifled guns on the USS Pawnee. (Library of Congress) The crew of a Dahlgren gun at drill aboard the U.S. gunboat Mendota, 1864. (National Archives) U.S. admiral and developer of an ordnance system named for him. Born in Philadelphia on 13 November 1809, John Dahlgren […]
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