National Museum of Nuclear Science & History
Mason worked in the 300 Area at Hanford during the Manhattan Project.
John K. Cloepfil served in the 320th Troop Carrier Squadron.
Roger S. Warner, Jr. was a civilian scientist who worked as part of Project Alberta, the team that transported and assembled all the components of the two atomic bombs before the August 1945 bombings of Hiroshima and Nagasaki.
