National Museum of Nuclear Science & History
W. N. Sparke worked for the J.A. Jones Construction Company.
Charles Rea worked for the United States Engineer District Office.
Richard A. Bice was an engineer. He joined the Manhattan Project at Los Alamos in 1944, rising to become the alternate Group Leader in X-Division.
Stafford Leak “Staff” Warren was a Colonel in the Army Medical Corps and the Chief Medical Officer of the Manhattan Engineer District (MED).
