COURTED BY PRESIDENTS, Part 2

Jane Addams,of Hull House, was the first President of a group called the International Women's Congress for Peace and Freedom, organized in 1915 to call for suffrage for women, and mediation to bring about the end of wars. At “their 2nd international congress, held in Zürich in 1919, ICWPP denounced the final terms of the peace treaty ending World War I as a scheme of revenge of the victors over the vanquished that would sow the seeds of another world war.”
The group moved to Zurich to work with the new League of Nations, and changed their name to Women's International League for Peace and Freedom. It was because of this work that Jane Addams was the first woman to receive the Nobel Peace Prize in 1931.

http://en.wikipedia.org/wiki/Women%27s_International_League_for_Peace_and_Freedom