biography
| name: |
Dahlgren, John (Adolphus Bernard)
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| sex:
| male
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| lived:
| (1809–70)
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| biography:
| US naval officer and inventor, born in Philadelphia, Pennsylvania, USA. Classically educated, he joined the navy as a midshipman (1826), served in the Mediterranean, and was later an assistant in the US Coast Survey. As ordnance officer at the Washington Navy Yard (from 1847), he experimented with naval weaponry, and by 1851 the yard had begun to produce a cannon of his own design. His 11-inch Dahlgren smoothbore guns were carried aboard many US warships, including the famous ironclad Monitor. As a rear admiral, he commanded the Union's South Atlantic Blockadina Squadron (1863–5) and was commandant of the Washington Navy Yard at his death. |
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