National Museum of Nuclear Science & History
Jay Romero was a staff worker at Los Alamos during the Manhattan Project.
M. F. Welch worked for the United States Engineer District Office.
Thompson worked for Stone and Webster Engineering Corporation.
Philip C. Leahy was a Second Lieutenant for the U.S. Army Corps of Engineers who began his work for the Manhattan Project at the Metallurgical Laboratory at the University of Chicago, Illinois.
