National Museum of Nuclear Science & History
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.
Lyman Brenneman was a member of the Special Engineer Detachment at Oak Ridge and was assigned to the K-25 Power Plant.
J. P. Valliant worked for the Union Carbide & Carbon Corporation.
C. E. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.