V. R. Green

E. E. Chipman

Chipman worked in the United States Engineer District Office.

Daniel F. Hanley

Elsie M. Freeman

Elsie Mae Freeman was born in Missouri in 1900. She graduated high school in Chicago. After graduating, Elsie was recruited to work in a lab at the University of Chicago in 1919.

Clyde E. Bagwell

Clyde E. Bagwell worked for the Roane-Anderson Company.