National Museum of Nuclear Science & History
R. L. Plowden worked for the J.A. Jones Construction Company.
Nesheim worked at the 300 Area at Hanford during the Manhattan Project.
Francis McHale was a security and safety man, a civilian, with the Corps of Engineers. He came to Hanford from the Pennsylvania Ordnance Works to set up fire and safety and police protection for the Manhattan Engineer District.
Joseph Lyford worked for the Kellex Corporation at the K-25 Plant.