23. Professional correspondence : February 1946 - March 1947
24. Professional correspondence : August 1947 - December 1947
25. Professional correspondence : January 1948 - December 1948
26. Professional correspondence : February 1949 - June 1949
27. Professional correspondence : July 1949 -March 1950
28. Professional correspondence : March 1950 - August 1950
29. Professional correspondence : September 1950 - January 1951
30. Professional correspondence : February 1951 - August 1951
31. Professional correspondence : August 1951 - December 1951
32. Professional correspondence : February 4, 1952 - February 29, 1952
33. Professional correspondence : March 1952 -May 1952
34. Professional correspondence : June 1952 - December 1952