National Museum of Nuclear Science & History
H. W. Brackney worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John A. Simpson Jr. (1916-2000) was a distinguished American nuclear physicist and astrophysicist. Simpson was born on November 3, 1916 in Portland, Oregon.
Sieck worked at the 200 East Area at Hanford during the Manhattan Project.
Asa Swain worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.