Harold Urey

Harold Clayton Urey (1893 - 1981)

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Harold Clayton Urey
Born in Walkerton, St. Joseph, Indiana, United Statesmap
Ancestors ancestors
[sibling(s) unknown]
Husband of — married in Lawrence, Kansasmap
Father of [private son (1930s - unknown)]
Died in La Jolla, San Diego, California, United Statesmap
Profile manager: Mark Burch private message [send private message]
Profile last modified | Created 10 Nov 2017
This page has been accessed 319 times.

Categories: Chemists | Nobel Laureates of the 20th Century | Manhattan Project | American Notables.


Harold Urey is Notable.

Harold was born in 1893. He passed away in 1981. [1] [2] [3]

Harold Urey was an American physical chemist who won the Nobel Prize in Chemistry in 1934 for the discovery of deuterium. The purification of deuterium (heavy water) was essential in the development of the atom bomb. He also developed the technique of uranium enrichment using the gaseous diffusion of uranium hexafluoride. His contributions to the Manhattan Project focused on uranium enrichment. Later in his life, Urey did research on the development of organic life from non-living matter. [4]. [5]

Harold knew a woman named Kate Daum who introduced him to her sister Frieda. He married Frieda Daum in Lawrence, Kansas in 1926 and they had four children. They resided in Bergen, New Jersey in the 40s. [6]

Harold Urey is buried with his wife Frieda in Fairfield Cemetery, Fairfield Center, DeKalb County, Indiana.

1940 US Census for Leonia Borough, Bergen, New Jersey, United States:

  • Harold C Urey Head M 47 Indiana
  • Freda Urey Wife F 42 Kansas
  • Gertrude E Urey Daughter F 12 Maryland
  • Freda R Urey Daughter F 10 Maryland
  • Mary Alice Urey Daughter F 5 New Jersey
  • John Clayton Urey Son M 0 New Jersey[7]


  1. "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JPPK-K4S : 20 May 2014), Harold Urey, Jan 1981; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
  2. Wikipedia: Harold Urey
  3. Findagrave Memorial #14672677
  4. 1934 Nobel Prize
  5. http://www.columbia.edu/cu/chemistry/groups/brus/urey.html
  6. "United States World War II Draft Registration Cards, 1942," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X5PP-QP6 : 7 April 2016), Harold Clayton Urey, 1942; citing NARA microfilm publication M1936, M1937, M1939, M1951, M1962, M1964, M1986, M2090, and M2097 (Washington D.C.: National Archives and Records Administration, n.d.).
  7. "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K4PY-NP6 : accessed 10 November 2017), Harold C Urey, Leonia Borough, Bergen, New Jersey, United States; citing enumeration district (ED) 2-193, sheet 3B, line 59, family 77, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 2310.

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No known carriers of Harold's Y-chromosome or his mother's mitochondrial DNA have taken yDNA or mtDNA tests and no close relatives have taken a 23andMe, AncestryDNA, or Family Tree DNA "Family Finder" test.

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Images: 2
Harold Urey
Harold Urey

Grave of Harold and Frieda Urey
Grave of Harold and Frieda Urey


Harold is 24 degrees from Robin Helstrom, 26 degrees from Katy Jurado and 22 degrees from Victoria of the United Kingdom of Great Britain and Ireland on our single family tree. Login to find your connection.

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