National Museum of Nuclear Science & History
D. R. Johnson worked for the Roane-Anderson Company.
V. P. Gehrke served in the 509th Headquarters and Base Services Squadron.
Roger Sr was a mechanical engineer having graduated from Stanford University during World War II. He and his wife, Katherine Barnes were recruited by the FBI who made contact with them at the Santa Fe training station when they were leaving town, after their honeymoon at Ghost Ranch.
H. D. Kinsey worked for the Union Carbide & Carbon Corporation.
John Willard was a research associate at the Chicago Met Lab during the Manhattan Project.