National Museum of Nuclear Science & History
John Ruhoff worked for the United States Engineer District Office.
Victor Kumin was born on August 2, 1921 in Worcester, Massachusetts. He was the third child of Samuel Kumin and Clara Montwid, who had both come to the United States from Latvia as young children with their families.
Rachel Gilbreath was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
