National Museum of Nuclear Science & History
Melvin S. Friedman was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Donald Francis Mastick was an American chemist who worked at Los Alamos and on Tinian as part of Project Alberta.
Clementson worked at the 100-B Area at Hanford during the Manhattan Project.
Majorie Feltz helped with clerical tasks at Los Alamos, including on the facility's supply records and cardex system in 1946.