National Museum of Nuclear Science & History
A. Mulder worked for the Roane-Anderson Company.
Houston worked at the 200 East Area at Hanford during the Manhattan Project.
Elwin Covey was an assistant and protégé to Glenn Seaborg, and spent most of his time with the Manhattan Project at the X-10 plant in Oak Ridge, Tennessee.
N. J. Johnson worked for Hanley & Company.
