John Sherwin Crosby
John Sherwin Crosby (January 13, 1842 – February 24, 1914) was an American author and lecturer on civics and government.
Crosby was a single tax advocate, proponent of the Georgism and land value tax ideas of political economist Henry George and priest/social reformer Edward McGlynn, and active member of the Manhattan Single Tax Club.  He wrote The Orthocratic State: The Unchanging Principles of Civics and Government which was published in 1915 by Sturgis & Walton Company. 
He first married Abby Josephine Gardner (1842–1890). They had two children, John Sherwin Crosby and Louise Leonard Crosby. 
- Nellie Fassett Crosby
Sometime after Abby's 1890 death, Crosby married Nellie Fassett in New York City.  She was the founder and 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. 
John Sherwin Crosby died on 24 February 1914.
- Ancestry.com: John Sherwin Crosby 1842-1914
- NYPL Digital Gallery: "The mission of Henry George", addresses by John S. Crosby.
- Google Books.com: "The Orthocratic State: The Unchanging Principles of Civics and Government" (1915).
- Jo Freeman. "The Rise of Political Woman in the Election of 1912". University of Illinois. 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
- "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 ...