F. Roark

M. G. Means

S. B. Gage

S. B. Gage worked for the Kellex Corporation at the K-25 Plant.

Elmer Kelly

Elmer began working with the Manhattan Project in 1941. He was one of the first people to arrive at Oak Ridge and experienced first-hand some of the difficulties there with cyclotrons and isotope separation.

Manuel M. Alcalde

Manuel Montes Alcalde (1921-2009) was a machinist at Los Alamos during the Manhattan Project. Alcalde was born in San Leandro, California.