National Museum of Nuclear Science & History
P. D. Simpson worked for the Poe Piping & Heating Company.
Attended the University of Nebraska.
J. M. Piper worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.