National Museum of Nuclear Science & History
Urban worked at the 200 West Area at Hanford during the Manhattan Project.
Herbert Potratz was an American chemist. Potratz was born in 1902 in Iowa. He received a B.S., an M.S.
When Colleen Black’s brother was drafted into the Army in 1942, she and her family decided to move to Oak Ridge to contribute to the war effort and bring her brother home.
