National Museum of Nuclear Science & History
M. E. Brennan worked for the Watson-Flagg Engineering Company.
Alvin Vanvessem was a member of the Special Enginner Detatchment (SED) at Los Alamos during the Manhattan Project.
Robert Hackett worked for the Tennessee Eastman Corporation at the Y-12 Plant.
MacDonald worked for Stone and Webster Engineering Corporation.
Keith Wertz served in the 603rd Air Engineering Squadron.
