National Museum of Nuclear Science & History
Mattie was a staff member at Los Alamos during the Manhattan Project.
P. B. Evans worked at the 200 West Area at Hanford during the Manhattan Project.
L. P. Riordan worked for Clinton Laboratories at the X-10 Reactor.
Bernice Feldman was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
