Joseph H. Madden

W. B. Gest

Al R. Threadgill

Al Threadgill worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Nathan Ballou

Nathan Ballou (1919-2016) was an American chemist. He was born in 1919 in Rochester, Minnesota. In 1941 he received a bachelor’s degree from the Duluth State Teachers College (now the University of Minnesota Duluth).

Lorraine Barbic

Lorraine Barbic was a technical worker in the Chemical Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.