National Museum of Nuclear Science & History
J. T. Calvert worked for the Union Carbide & Carbon Corporation.
L. A. Castellanos worked for the J.A. Jones Construction Company.
Richard Malenfant worked for the Los Alamos National Laboratory (LANL) for many years in health safety and radiation detection.
Betty L. Carlson was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
