National Museum of Nuclear Science & History
J. V. O’Connor worked for the Union Carbide & Carbon Corporation.
Josephine Winch was a research assistant in the chemistry division at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
J. M. Ryan worked for the United States Engineer District Office.
Alfred Neyens served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
W. F. Johnson worked for the J.A. Jones Construction Company.
