Frank E. Keene

James P. Murray

James Murray was a security officer at Los Alamos during the Manhattan Project. He led a plainclothes operation under the pseudonym Paul Sheridan, and suspected J.

Frank T. Sawyers

Walter C. Youngs, Jr.

Walter Youngs, Jr. worked for the United States Engineer District Office.

R. W. Beachley

Beachley worked for Stone and Webster Engineering Corporation.