National Museum of Nuclear Science & History
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
J. R. Siebert worked for the Comstock-Bryant Electric Company.
H. L. Patterson worked for the Union Carbide & Carbon Corporation.
W. R. Morgan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
