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 Cornelius Henry DeLamater

Cornelius Henry DeLamater

Rhinebeck, Dutchess County, New York, USA
Death 7 Feb 1889 (aged 67)
New York, New York County (Manhattan), New York, USA
Cenotaph Rhinebeck, Dutchess County, New York, USA
Memorial ID 53548696 · View Source
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Inventor, Industrialist. He constructed the world's first successful submarine torpedo boat. Co-designed the iron clad U.S.S. Monitor along with his Swedish friend Jon Ericsson. This vessel stopped the Merrimac at Hampton Roads, Virginia, on March 9, 1862, in history's first battle between ironclads. During the battle, DeLamater, who owned the Phoenix Company which constructed parts of the vessel, used his own civilian employees to operate the Monitor's boilers and turret machinery. These men later returned to their jobs at the company located in New York. After the war, he went on to invent and manufacture firefighting pumps, engines, industrial presses, mechanical refrigeration equipment, hydraulic stage machinery, and what every child remembers, the great cannon which shot the human cannonball during circus performances. It was actually a gigantic spring.

Bio by: Paul S.


Son of William & Eliza Delamater, interred in Woodlawn, New York.





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  • Maintained by: Find A Grave
  • Originally Created by: Suzanna Ashworth
  • Added: 11 Jun 2010
  • Find A Grave Memorial 53548696
  • Find A Grave, database and images ( : accessed ), memorial page for Cornelius Henry DeLamater (20 Aug 1821–7 Feb 1889), Find A Grave Memorial no. 53548696, citing Rhinebeck Cemetery, Rhinebeck, Dutchess County, New York, USA ; Maintained by Find A Grave .