National Museum of Nuclear Science & History
Walter Main worked for the United States Engineer District Office.
A. L. Davis worked for the J.A. Jones Construction Company.
L. H. Sudderth worked for the Edenfield Electric Company.
Francis M. Blake worked for the Union Carbide & Carbon Corporation.
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
