National Museum of Nuclear Science & History
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lindsay worked for Stone and Webster Engineering Corporation.
Otto C. Block, Jr. served in the 393rd Bombardment Squadron.
Joseph W. Giroux was a Private First Class in the 1st Ordnance Squadron. Giroux was born in Worthington in the district of Sudbury, Ontario, Canada, on October 24, 1921.
