National Museum of Nuclear Science & History
J. P. Smith worked for the J.A. Jones Construction Company.
Harold Smith served in the Army at Los Alamos during the Manhattan Project.
Arthur Buck was a security guard for the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.
Leonard Motichko worked as a part of Project Alberta, the team that transported and assembled the two atomic bombs in August 1945.