Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

John Horan worked for the United States Engineer District Office.

Related Profiles

Hugo S. Kivisto

Los Alamos, NM

Lila Roach

Los Alamos, NM

Henry Stimson

Washington, DC

As Secretary of War under Presidents Franklin D. Roosevelt and Harry Truman, Henry L. Stimson (1867-1950) oversaw the entire Manhattan Project, and was responsible for appointing key project leaders and authorizing project construction sites across the US.

Winifred T. Koziolek

Chicago, IL

Winifred T. Koziolek was a laboratory technician the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.