National Museum of Nuclear Science & History
Lawrence S. O’Rourke began working on the Manhattan Project at Columbia University after he was called up from the Army Reserves in 1943.
Thomas R. Williams was a laborer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Mathias (“Matthew”) Antone Thennes was born in 1895. He served in WW1 with the 39th Division, 153rd Regiment, in France.
Brackett worked in the United States Engineer District Office.
