National Museum of Nuclear Science & History
S. C. Barnett worked for the Union Carbide & Carbon Corporation.
Willard Clark was born in Boston in 1910, but grew up in Buenos Aires, Argentina, where his father was President of the General Motors Argentina Branch.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.
Dennis Dwyer was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Helen Mulvihill was the commander officer of the Women’s Army Corps at Los Alamos during the Manhattan Project.
