National Museum of Nuclear Science & History
Mehann worked in the 200 West Area at Hanford during the Manhattan Project.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
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.
