National Museum of Nuclear Science & History
John Weil was a member of the Special Engineer Detachment serving at Los Alamos from early 1943 through the end of the war.
W. H. Evans worked for the Union Carbide & Carbon Corporation.
Sonia Weiner Katz was a secretary in the Chemistry Division of the Chicago Met Lab during the Manhattan Project.
O’Black worked in the 200 East Area at Hanford during the Manhattan Project.