National Museum of Nuclear Science & History
Arnold graduated from Northwestern University in 1941 with a B.S. degree in Biology and a minor in Chemistry.
Joseph worked at the 300 Area at Hanford during the Manhattan Project.
Richard “Dick” H. Nelson served as a private first class in the 509th Composite Group. He was the radio operator on the Enola Gay during its mission to Hiroshima.
Palmer worked in the 100 F Area at Hanford during the Manhattan Project.