James Barton worked as a carpenter for the DuPont Company at the Hanford, Washington site. He never knew he was working on the atomic bomb until after it was dropped in Japan. His memorabilia from working on the Manhattan Project includes a certificate signed by the Secretary of War, and a small gray pin with the words “Manhattan Project” on it. After the war Barton stayed in Washington, living in Yakima from 1942 until he passed away at the age of 87 in 1988.