National Museum of Nuclear Science & History
Leifermann worked in the 100 D Area at Hanford during the Manhattan Project.
Clifford Nilsson served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Attended Duke University.
David Dow was a lawyer. He served as administrative assistant to J. Robert Oppenheimer. He was in charge of non-technical activities at Los Alamos and the Compagna Hill monitoring site, 20 miles from the Trinity test.
Fred Lederer worked for the Roane-Anderson Company.