National Museum of Nuclear Science & History
A. W. Seivert worked for Hanley & Company.
Raymond Elliot Zirkle was a radiobiologist who worked at numerous Manhattan Project sites during World War II.
Brown worked in 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.