Fassett was the founder, in 1905, and first president of the Women's Democratic Club of New York City. It was the first permanent national political organization exclusively established by and for women. The pioneering American theatrical and literary agent Elisabeth Marbury was a member, and also involved in Democratic politics and Georgism.
- Jo Freeman. "The Rise of Political Woman in the Election of 1912". University of Illinois. Archived from the original on 2009-05-11. Retrieved 2009-07-25.
One of those attending the breakfast was Nellie Fassett (Mrs. John Sherwin) Crosby of New York City. She was not a political wife, but a political organizer and the personal friend of William Jennings Bryan. Mrs. Crosby had been organizing and presiding over women's political clubs since the 1890s. She had founded the Woman's Democratic Club of New York City in 1905 — "the only organization of Democratic women [in New York] to outlive its birth year" — and was still its only president
- Perry, Elisabeth Israels (2019). After the Vote: Feminist Politics in La Guardia's New York. Oxford University Press. ISBN 9780199341863.
- "Democrats Choose Mrs. J.S. Crosby" (PDF). New York Times. February 28, 1918. Retrieved 2009-07-25.
Mrs. John Sherwin Crosby of New York City has been named as the representative of New York State on the Woman's Advisory Committee of the Democratic ...
- Media related to Nellie Fassett at Wikimedia Commons