R. R. Harris

Nathalie Goldowski

Nathalie Goldowski was a metallurgist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”).

Lewis W. Graves

Lewis W. Graves worked for the Roane-Anderson Company.

H. T. Welty, Jr.

H. T. Welty, Jr. worked for the Roane-Anderson Company.

Harryetta Emerson