
"Remarks at the Birthplace of Abraham Lincoln" http://www.eisenhowermemorial.org/speeches/19540423%20Remarks%20at%20the%20Birthplace%20of%20Abraham%20Lincoln.htm, Hodgenville, Kentucky (April 23, 1954). The story originates http://books.google.com/books?id=AsrfAAAAMAAJ&pg=PA128 from F. A. Mitchel, son and aide of General Mitchel.
1950s