Carl Kasalek

Wilfred Fritz

Attended the Pratt Institute.

Jens Thornton

Jens Thornton, or “Jim” (as he went by at Berkeley) was an electrical engineer employed by Stone & Webster engineering firm during the Manhattan Project.

W. J. Etherton

Duffer Crawford

Duffer Crawford worked for the civilian contractor Kellex Coroporation in New York under the supervision of Judson Swearingen.