National Museum of Nuclear Science & History
L. D. Larkin worked for the H. K. Ferguson Company.
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
Robert Parks worked for the United States Engineer District Office.
C. L. Langston worked for the Fercleve Corporation.
J. P. Valliant worked for the Union Carbide & Carbon Corporation.
