National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
Bertrand Goldschmidt was a French chemist, who worked at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dexter Wolfe was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
T. A. McKenzie worked for the Tennessee Eastman Corporation at the Y-12 Plant.