John Adolphus Bernard Dahlgren was a United States Navy officer who founded his service's Ordnance Department and launched significant advances in gunnery.
Dahlgren devised a smoothbore howitzer, adaptable for many sizes of craft and shore... Wikipedia
Born: November 13, 1809, Philadelphia, PA
Died: July 12, 1870 (age 60 years), Washington, D.C.
Children: Ulric Dahlgren, John Vinton Dahlgren, and Eric Bernard Dahlgren
Grandchildren: John Vinton Dahlgren II, Ulric Dahlgren, Vinton Ulric Dahlgren Pierce, and more
Partner: Madeleine Vinton Dahlgren (1865–) and Mary Clement Bunker
Parents: Bernhard Ulrik Dahlgren