June 1 1909
January 1 1912
March 1 1914
August 1 1917
January 1 1924
January 1 1926
January 1 1927
July 1 1937
October 1 1941
January 1 1943
January 1 1947
January 1 1946
December 1 1948
October 1 1950
August 1 1953
January 1 1955
April 1 1957
September 1 1957
January 1 1957
January 1 1967
June 5 1950
December 1 1953
October 18 1943
January 1 1961
January 1 1964
January 1 1973
January 1 1979
May 1 1976