Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

James A. Jensen

MachinistHanford, WA

Manhattan Project Veteran
James Jensen with a dinosaur fossil in his later career as a paleontologist

James Jensen was a machinist at Hanford, Washington from September 1944 to the end of the war. Jensen's security clearance allowed him to machine parts and complete various tasks for the maintenance of the nuclear piles. Jensen gained worldwide fame after the war as an acclaimed paleontoligist with Brigham Young University. His numerous expeditions in search of dinsosaur remains earned him the nickname "Dinosaur Jim."

Related Profiles

Ralph Gardner-Chavis

Chicago, IL

Ralph Alexander Gardner-Chavis (1922-) is a chemist and pioneer of hard plastics who worked at the University of Chicago’s Met Lab during the Manhattan Project.

Alan Haseman

Los Alamos, NM

Mildred (Ginsberg) Goldberger

Chicago, IL

Mildred (Ginsberg) Goldberger was an American mathematician and economist.  She was a research assistant and computer at the Metallurgical Laboratory at the University of Chicago during the Manhattan Project.

Nannie G. Bell

Oak Ridge, TN

Bell worked in the United States Engineer District Office.