National Museum of Nuclear Science & History
McGruder worked for Stone and Webster Engineering Corporation.
Williamson worked at the 300 Area at Hanford during the Manhattan Project.
Robert Holmberg was born in Fort Dodge, Iowa, and began working on the Manhattan Project at the Chicago Met Lab and at Ames Laboratory in Iowa.
During WWII, Dr. Arthur Sucsy worked as a chemist on the Y-12 Plant at Oak Ridge, TN. Dr. Sucsy worked with a team of scientists responsible for examining the physical and chemical properties of uranium.