National Museum of Nuclear Science & History
H. G. Hoberg worked for the United States Engineer District Office.
Robley "Rob" Johnson arrived at Hanford on May 2, 1943, at the age of 35. He was one of the first repersentatives of the DuPont Company on the scene.
L. C. Hafer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Martin was a staff member at Los Alamos during the Manhattan Project.