National Museum of Nuclear Science & History
MacCready worked in the 200 West Area at Hanford during the Manhattan Project.
Arnold Kramish was a physicist in the Manhattan Project and a member of the Special Engineering Detachment (SED) at Oak Ridge, Tennessee, the Philadelphia Navy Yard, and Los Alamos.
A. H. Frost worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Willard E. Gaskins served in the 320th Troop Carrier Squadron.