National Museum of Nuclear Science & History
John Horan worked for the United States Engineer District Office.
Morris S. Kaplan was a Chemical Engineer for the Houdaille-Hershey Company in Decatur, Illinois. Kaplan was born in Massachusetts in 1921 and grew up in Chicago, Illinois.
Peter Korzaan served the Manhattan Project in the Provisional Engineering Detachment (PED) at Los Alamos from 1945 to 1946.
