Arthur E. Tissol

R. W. Downing

Louis Spector

Louis Spector worked for the United States Engineer District Office.

J. Ellerbroek

Ellerbroek worked for Stone and Webster Engineering Corporation.

Peter D. Korzaan

Peter Korzaan served the Manhattan Project in the Provisional Engineering Detachment (PED) at Los Alamos from 1945 to 1946.