National Museum of Nuclear Science & History
Elvin Olsen was a staff worker at Los Alamos during the Manhattan Project.
A Missourian by birth, W.K. ("Mac") MacCready held undergraduate and graduate degrees in physical chemistry from the University of Alabama.
John Willard was a research associate at the Chicago Met Lab during the Manhattan Project.
M. P. Lafleur worked for the Tennessee Eastman Corporation at the Y-12 Plant.
