National Museum of Nuclear Science & History
William Stephenson worked for the J.A. Jones Construction Company.
Clarence Joyce worked for the Poe Piping & Heating Company.
Oftdahl worked in the 200 West Area at Hanford during the Manhattan project.
Henry McDonald, Jr. worked for the United States Engineer District Office.
M. L. Olsgaard worked for the Tennessee Eastman Corporation at the Y-12 Plant.
