National Museum of Nuclear Science & History
Pechar worked in the 300 Area at Hanford during the Manhattan Project.
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.
C. A. Wikle worked for the A. S. Schulman Electric Company.
W. H. Jennens worked for the Tennessee Eastman Corporation at the Y-12 Plant.
R. S. Stone worked for Clinton Laboratories at the X-10 Reactor.