Letter - December 8, 1939
Letter - December 9, 1939
Letter - December 9, 1939 (Copy with edits)
Letter - February 18, 1964
Letter - February 3, 1964
Letter - January 19, 1943
Letter - January 30, 1961
Letter - July 13, 1964
Letter - July 2, 1938
Letter - June 13, 1973