National Museum of Nuclear Science & History
Fred Smyth worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Eleanor Ewing Ehrlich (1918-2011) was an American mathematician. During the Manhattan Project, Ewing worked at Los Alamos and helped run the IBM calculating team.
Olsen worked in the 200 East Area at Hanford during the Manhattan Project.
H. A. Smith worked for the J.A. Jones Construction Company.