National Museum of Nuclear Science & History
J. T. Calvert worked for the Union Carbide & Carbon Corporation.
A. B. Kincaid worked for the Roane-Anderson Company.
Helgeson worked at the 300 Area at Hanford during the Manhattan Project.
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.
