Head of the Most Prominent Group Opposed to Women's Right to Vote was a Woman 1913

The head of the most prominent and influential group opposed to giving women the right to vote was headed by a female president in New York circa 1913. Her belief was that only lawless and hysterical women wanted the right to vote. Why is this important piece of history never mentioned?

http://www.scribd.com/doc/155510701/Largest-Group-Opposed-to-Women-s-Suffrage-Has-a-Female-President-1913

Largest Group Opposed to Women's Suffrage Has a Female President 1913 by diligentpurpose