W. O. Switzer

J. T. Leahy

Leahy worked for Stone and Webster Engineering Corporation.

Betty Carlson

Betty L. Carlson was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

William H. Svanoe

G. W. Watt

Watt worked at the 200 West Area at Hanford during the Manhattan Project.