National Museum of Nuclear Science & History
Mehann worked in the 200 West Area at Hanford during the Manhattan Project.
Delbert Johnson was a mechanical engineer with the Special Engineer Detachment (SED) at Los Alamos. Johnson worked under 1st Lieutenant Howard C.
Harry Herman served in the 1395th Military Police Company, Aviation.
Reba Holmberg grew up in Robertsville, Tennessee, and experienced its claiming by the federal government for the Manhattan Project.