National Museum of Nuclear Science & History
S. J. Helfman worked for the J.A. Jones Construction Company.
Menges was an Area Engineer and Area Supervisor at the Hanford Engineer Works. He was in the US Navy (USNR) until June of 1943 when he was injured in an explosion on his destroyer.
M. J. Gustafson worked for the J.A. Jones Construction Company.
Russell R. Wolff served in the 390th Air Service Group.