Leonard Lanni

Opal MacDonald

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

William F. Sturm

William Sturm was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Arnold Voyles

Hester Moore

Hester Moore was a supervisor in the Communications Department at the Manhattan Project’s Hanford, Washington site during World War II.