National Museum of Nuclear Science & History
Phelps worked in the 100 F Area at Hanford during the Manhattan Project.
Rosario Martinez Fiorillo grew up in northern New Mexico during the Manhattan Project. Her ancestors were Hispano homesteaders who built the Romero Cabin, an important pre-Manhattan Project structure at Los Alamos.
Raymond Schwartz grew up in West Allis, WI. After graduating from high school, he worked as an apprentice machinist for Allis Chalmers Corporation, until enlisting in the Army in February 1943.