Sanford L. Willner

Harry Truman

Harry S. Truman (1884-1972) was the 33rd President of the United States of America. Truman first learned of the Manhattan Project after the death of President Roosevelt in April of 1945, when he relinquished his role as Vice President and took the oath of office as the next president of the United States.

H. S. Mantooth

H. S. Mantooth worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Harvey T. Skates

Alvin Graves

Alvin Graves (1909-1965) was an American physicist. Graves was invited to join the University of Chicago Metallurgical Laboratory and in 1942 he accepted the position and became a member of the Manhattan Project.