History
The Speleological Society of the District of Columbia (SSDC) was formed on May 6, 1939 by Bill Stephenson. In the fall of 1940, the officers of the SSDC drafted a proposed constitution that would transform the SSDC into the National Speleological Society. On January 24, 1941, Bill Stephenson sent a letter to all members of the SSDC announcing that "on January 1 the Society was reorganized as a national organization."
Read more about this topic: National Speleological Society
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