Lammot du Pont I

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Lammot du Pont I
Lammot du Pont as a Union officer
Born(1831-04-13)April 13, 1831
DiedMarch 29, 1884(1884-03-29) (aged 52)
Cause of deathnitroglycerin explosion
Resting placeDu Pont De Nemours Cemetery
EducationB.A. Chemistry, 1849
Alma materUniversity of Pennsylvania
EmployerE. I. du Pont de Nemours and Company
Spouse(s)Mary Belin
ChildrenPierre S. du Pont
Irénée du Pont
Lammot du Pont II
Parent(s)Alfred V. du Pont
Margaretta Elizabeth Lammot
RelativesÉleuthère Irénée du Pont, grandfather

Lammot du Pont I (April 13, 1831 – March 29, 1884) was a chemist and a key member of the du Pont family and its company in the mid-19th century.

Life and career[edit]

du Pont was born in 1831 in New Castle County, Delaware, the son of Margaretta Elizabeth (Lammot) and Alfred V. du Pont, and grandson of French-born Éleuthère Irénée du Pont de Nemours, the founder of E. I. du Pont de Nemours and Company. Lammot was born at Nemours, the family home built in 1824 and named in honor of the full family name.

Lammot studied chemistry at the University of Pennsylvania,[1] and obtained a bachelor of arts degree in 1849.[2] He entered into the family business, and used his chemistry knowledge to patent B blasting powder in 1857. His invention used an inexpensive Peruvian and Chilean sodium nitrate, which he had discovered in 1858 could be used to manufacture black powder more cheaply than potassium nitrate.

In the Civil War, du Pont enlisted in 1862 and was commissioned captain of Company B, 5th Delaware Volunteer Infantry that served at Fort Delaware on Pea Patch Island.[3]

In 1880, du Pont convinced his family that a new explosive, dynamite, would eventually make gunpowder obsolete.[4] His vision eventually made the company a major force in the blasting powder industry. Later, he founded the Repauno Chemical Company and helped his family's company enter the high explosives business.

He died in a nitroglycerin explosion on March 29, 1884, in Gibbstown, New Jersey.[5]


The Lammot du Pont Laboratory at the University of Delaware is named in his honor. The 34,000 square feet (3,200 m2)-building houses laboratories of the Department of Chemistry and Biochemistry and the College of Marine Studies.[6]


Lammot du Pont married Mary Belin (1839–1913)[7] and had 11 children:

Further reading[edit]

  • Wilkinson, Norman B. (1984). Lammot du Pont and the American Explosives Industry 1850-1884. Charlottesville: University Press of Virginia. ISBN 978-0813910123.
  • du Pont, Pierre S. (1984). Life in My Father's House. Wilmington: H.R. Sharp. ASIN B0006EOFLU.


  1. ^ John Kenly Smith, Ph.d. "DuPont: The Enlightened Organization". DuPont. Retrieved January 20, 2015.
  2. ^ "Catalogue of the Trustees, Officers & Students of the University of Pennsylvania, Session 1848-49" (PDF). University of Pennsylvania. Retrieved January 20, 2015.
  3. ^ "Soldier Details: DuPont, Lammot". Retrieved January 20, 2015.
  4. ^ John Kenly Smith, Ph.D. "DuPont: The Enlightened Organization". DuPont. Retrieved January 20, 2015.
  5. ^ Henry Garfield Alsberg (1955). Delaware: a guide to the first State. Hastings House. p. 439. Retrieved 1 August 2010.
  6. ^ "Lammot du Pont Laboratory". University of Delaware. Retrieved January 20, 2015.
  7. ^ Lynn Ann Catanese (1997). Women's history: a guide to sources at Hagley Museum and Library. Greenwood Publishing Group. p. 88. ISBN 978-0-313-30270-1. Retrieved 1 August 2010.
  8. ^ History of the Class of 1868: Yale College, 1864-1914. By Yale University. Class of 1868, page 83.
  9. ^ "Lammot Du Pont, Financier, Dies At 71". Los Angeles Times. July 25, 1952. Retrieved 2009-08-20. Lammot du Pont; for 22 years the guiding hand of the vast multimillion-dollar E. L du Pont de Nemours & Co., Inc., one of the world's greatest chemical companies, died today of heart disease.