C.R. Smith

W. R. Clarkson

Clarkson worked in the United States Engineer District Office.

Ruth H. Anderson

Ruth H. Anderson was a staff member at Los Alamos during the Manhattan Project. Her husband, Ralph Larsen, worked at Los Alamos as a machinist.

Clifford C. Johnson

Casmer Lesnioski

Casmer Lesnioski worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.