National Museum of Nuclear Science & History
Jay Romero was a staff worker at Los Alamos during the Manhattan Project.
E. H. Douglas worked at the 300 Area at Hanford during the Manhattan Project.
Ridley worked at the 300 Area at Hanford during the Manhattan Project.
J. M. Ryan worked for the United States Engineer District Office.
C. D. Knable worked for the J.A. Jones Construction Company.
