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National Museum of Nuclear Science & History


One of the goals of this site and the Atomic Heritage Foundation is to help people find out more about the 600,000 men and women who worked on the Manhattan Project. If you would like us to add a profile or if you have more information about a Manhattan Project veteran, please contact us at

Some profiles include a detailed description of the person’s life and work, while for others all the information we know is their name and Manhattan Project location. We have also included profiles of early nuclear pioneers, Manhattan Project experts, and German scientists who worked on Nazi Germany’s efforts to develop the bomb.

You can use the filters to search for Manhattan Project veterans, women scientists, engineers, spouses of Manhattan Project workers, and more. Learn more.

Featured Profiles

Ethaline H. Cortelyou

Chicago, IL

Ethaline Hartge Cortelyou was a junior chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Floy Agnes Lee

Los Alamos, NM

Floy Agnes “Aggie” (Naranjo Stroud) Lee was a biologist who worked on the Manhattan Project at Los Alamos as a technician.

Harold “Hal” Behl

Oak Ridge, TN

After receiving his bachelor’s degree in Aeronautical Engineering from New York University, Hal Behl registered with the National Roster of Scientific and Specialized Personnel and was drafted into the Army.

Manhattan Project Veterans Database