H. F. Harmon

A. A. Lind

F. E. Donoghue

Donoghue worked in the United States Engineer District Office.

Daniel Friel

Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.

Hazel J. Collie

Collie worked in the United States Engineer District Office.