National Museum of Nuclear Science & History
Gabriel worked at the 300 Area at Hanford during the Manhattan Project.
William Thomas McNamara worked in Oak Ridge Tennesee with his wife Mildred Wilton from 1942 to 1946. Prior to accepting a job at Oak Ridge, McNamara had worked at the Charlestown Navy Shipyard in Boston.
Manuel Schwartz was a physicist. He worked at Los Alamos as a civilian employee from about July 6, 1944, until January or February 1946.