This box contains general and special circulars sent out by the MPE central office to the local ssociations. The records include the following:
39. General Circulars 1965
40. General Circulars 1966
41. General Circulars 1967
42. General Circulars 1968
43. General Circulars 1969
44. General Circulars 1970-1979
45. Special Circulars 1926-1939
46. Special Circulars 1940-1949
47a. Special Circulars 1950-1952
47b. Special Circulars 1952-1959
48a. Special Circulars 1960-1969
48b. Special Circulars 1960-1969