Cornelius H. DeLamater

Cornelius Henry DeLamater
Born (1821-08-30)August 30, 1821
Rhinebeck, New York
Died February 2, 1889(1889-02-02) (aged 67)
New York City
Residence Delamater-Bevin Mansion
Occupation Industrialist
Years active 18411889
Spouse(s) Ruth Oakley Caller DeLamater
Children Laura DeLamater Bevin

Cornelius Henry DeLamater (August 30, 1821 February 2, 1889) was an industrialist who owned DeLamater Iron Works in New York City. The steam boilers and machinery for the ironclad USS Monitor was built in DeLamater's foundry during the Civil War.[1] Swedish marine engineer and inventor John Ericsson considered DeLamater his closest, most intimate friend.[2]


Cornelius H. DeLamater was born on August 30, 1821, in Rhinebeck, New York, his family moving to New York City when Cornelius was three years old. His father was hired by a very small iron foundry, the Phoenix Iron Works of James Cunningham on West Street, as cashier and confidential advisor. At 16, Cornelius entered the Phoenix Foundry, and at age 20, upon the death of Cunningham, he formed a co-partnership with Peter Hogg under the name Hogg and DeLamater. This firm continued from 1842 to 1857, when Hogg retired from the business. The firm was re-formed as the DeLamater Iron Works, and moved to the foot of West 13th Street on the West side of Manhattan.

At an early age, DeLamater developed an unusual ability in solving problems that were then developing in regard to steam engineering and machinery. During the Civil War he worked with Capt. John Ericsson in the development of the ironclads Monitor and Dictator which were constructed in an incredibly short space of time. In time, the DeLamater Iron Works became known as the asylum where inventors and capitalists could go to experiment and attempt new feats. The Iron Witch was next constructed, the first iron steamboat. The hot air engine of Capt. Ericsson was first introduced in the ship Ericsson which was built entirely by DeLamater. The DeLamater Iron Works was also the place where the first submarine boat, first self-propelled torpedo, first torpedo boat, and the engines for the original Monitor were built.[1][3] At the time of his death, the DeLamater Iron Works employed over 1000 men.[4]

Eaton's Neck Estate

DeLamater-Bevin Mansion

DeLamater's leisure moments were spent at Beacon Farm on Eatons Neck, Long Island, New York where he had 1,250 acres (5.1 km2) of choice land on the North Shore of Long Island, and the "finest blooded stock in America" as described by the New York Times.[1] The DeLamater Estate included everything beyond what is today #325 Asharoken Avenue. This includes the upper half of Asharoken Beach, the Morgan Estate, the Eaton Harbors or Two Acre Zone of Eaton's Neck, and the Bevin Road peninsula in Asharoken. The DeLamater Mansion still stands today on the Eatons Neck peninsula, and was rented in 1942 by French author Antoine de Saint Exupéry who wrote The Little Prince while at the mansion. The children and grandchildren of DeLamater also built mansions over time in Eaton's Neck and Asharoken that still stand today, namely "The Point", "The Nest", "The Crest", and "The Hill". The DeLamaters also renovated two existing colonial structures for family estates, namely "Cherry Lawn" and "Oak Leaf".


The monument of Cornelius DeLamater in Woodlawn Cemetery

On February 2, 1889 Cornelius DeLamater died at his home in New York City, and over 600 of his employees attended his funeral, with 500 of them accompanying the casket on board a special train that took the funeral procession from Manhattan to Woodlawn Cemetery in the Bronx.[5]

See also


  1. 1 2 3 A Well Spent Life; Incidents in the Record of Cornelius H. DeLamater. The New York Times. Feb 10, 1889.
  2. Legislative Document by New York State Legislature, vol 37, no. 117-118. J.B. Lyon Co. 1920. pp. 202–213.
  3. Honors for Capt Ericsson". The New York Times. Dec 11, 1921.
  4. Carr, Edward A.T.; Michael W. Carr; Kari Ann Carr (1994). Faded Laurels, The History of Eaton's Neck and Asharoken. Heart of the Lakes Publishing. ISBN 978-1-55787-119-0.
  5. Mourned by Rich and Poor; Cornelius H. DeLamater's Funeral Was Largely Attended. The New York Times. Feb 11, 1889.

External links

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