National Museum of Nuclear Science & History
Frank Graham worked for the Midwest Piping and Supply Company.
Addie Saunders was a laboratory assistant in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Jerome Otto Ackerman was a member of the Special Engineer Detachment who served as a group leader at Los Alamos during the Manhattan Project.
Andrew Walker was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.