National Museum of Nuclear Science & History
John W. Marden was deputy research director at the Westinghouse Electric Corporation Lamp Plant in Bloomfield, New Jersey.
F. M. Downs worked for the J.A. Jones Construction Company.
Carl Crumb was a member of the Special Engineering Detachment at Los Alamos. While working there, he met his wife Jeanne Crumb, who was a nurse in the Los Alamos Hosptial.
Dreeszan worked in the United States Engineer District Office.
