National Museum of Nuclear Science & History
Paul Vinther arrived in Hanford in 1950 where he worked as a physicist and reactor operator. Vinther worked alongside DuPont and observed first hand DuPont's safety philosophy as well as many of the safety measures put in place to protect workers at the plant.
In a communication to Stone & Webster Engineering Corporation, General Leslie Groves gave instruction to discontinue work on the Y-12 Alpha 1 4-J unit, and, authorized Westinghouse Electric Corporation to hire additional draftsmen to accelerate the Y-12 Alpha 2 30-J uranium enrichment program at Oak Ridge, TN.