National Museum of Nuclear Science & History
L. C. Danielson worked for the J.A. Jones Construction Company.
J. P. Speed worked for the Poe Piping & Heating Company.
Christiansen worked at the 100-B Area at Hanford during the Manhattan Project.
R. H. Martin worked for the United States Engineer District Office.
Arnold Grubbe (1904-2002) was an engineer working for the civilian contractor Crane Company in Oak Ridge, Tennessee.
