National Museum of Nuclear Science & History
H. L. Roland worked for the Midwest Piping and Supply Company.
Samuel King Allison was an American physicist. Allison was born in Chicago, in 1900. He studied at the University of Chicago, receiving a Ph.
Attended the California Institute of Technology.
Leon O. (Tom) Morgan was an American chemist who worked on the Manhattan Project and co-discovered the element Americium.