National Museum of Nuclear Science & History
Oklahoma-born Leon Overstreet went into construction in 1941 after he learned a little pipefitting with American Can in Kansas City.
Kopanski worked at the 200 East Area at Hanford during the Manhattan Project.
H. A. McFadden worked for the Roane-Anderson Company.
W. P. Lewis worked for the Tennessee Eastman Corporation at the Y-12 Plant.
