National Museum of Nuclear Science & History
William Nixon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Stanley Liebert was a machinist in the SAM Laboratory at Columbia University between 1944 and 1945.
William Floyd Hartshorn, Jr. was a lead pilot of the 216th flight test section at Wendover, Utah. Early Life Hartshorn was born on July 28, 1918 in McAllen, Texas.
Sergeant Frank Karcher was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
