National Museum of Nuclear Science & History
E. P. Marguerat worked for the Union Carbide & Carbon Corporation.
Harvey Saylor worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Lansdale (1912 – 2003) was a colonel in the US Army. Lansdale first learned of the Manhattan project from National Defense Research Committee Chairman James B.
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.