Original bylaws adopted October 11, 1938.

Revision dates: February 20, 1948; February 19, 1949; August 8, 1950; August 18, 1956; November 15, 1958; November 5, 1960;

November 6, 1965; November 5, 1966; November 2, 1967;

November 12, 1971; November 15, 1974; September 7, 1978;

September 10, 1983; September 20, 1986; September 23, 1989;

September 22, 1990; July 18, 1998; July 17, 1999; July 15, 2000;

 July 20, 2002; and July 17, 2004: July 13, 2019.