National Museum of Nuclear Science & History
Joseph Leopold worked for the Kellex Corporation at the K-25 Plant.
Hayes worked at the 300 Area at Hanford during the Manhattan Project.
Frank Jordan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Henry “Hap” Arnold was a United States general. Arnold was born in Gladwyne, PA, in 1886. He attended the United States Military Academy, and was personally instructed by the Wright Brothers, becoming one of the first military pilots in United States history.
