National Museum of Nuclear Science & History
Ryan worked at the 100-B Area at Hanford during the Manhattan Project.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Wilma Pickert served in the Women’s Army Corps at Los Alamos during the Manhattan Project.
A. H. Dahl worked for the Tennessee Eastman Corporation at the Y-12 Plant.