Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Opal MacDonald

StenographerChicago, IL

Manhattan Project VeteranProject Worker/Staff

Opal MacDonald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Related Profiles

James Hopkins, Jr.

Nagasaki Mission

Lt. Col. James Iredell Hopkins, Jr. served in the 509th Headquarters and Base Services Squadron.

Ralph B. Larsen

Los Alamos, NM

Ralph B. Larsen was a machinist at Los Alamos during the Manhattan Project. His wife, Ruth Anderson, also worked at Los Alamos.

H. B. Coleman

Hanford, WA

Ralph R. Taylor, Jr.

Hiroshima Mission

Ralph R. Taylor, Jr. served as a major in the 393rd Bombardment Squadron. He was the commander of the B-29 Full House, which served as a weather reconnaissance plane on the Hiroshima bombing mission, and the backup strike plane on Iwo Jima on the Nagasaki mission.