National Museum of Nuclear Science & History
Seymour worked at the 200 West Area at Hanford during the Manhattan Project.
Arnold Grubbe (1904-2002) was an engineer working for the civilian contractor Crane Company in Oak Ridge, Tennessee.
W. B. Creamer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
McKinney worked in the 200 East Area at Hanford during the Manhattan Project.