National Museum of Nuclear Science & History
Joseph Kouba was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Crawford worked in the United States Engineer District Office.
Barnes worked in the United States Engineer District Office.
Frank A. Alger Sr. was a member of the 509th Composite Group at Wendover, UT and later transferred to Tinian Island to prepare for the atomic bomb mission against Japan.