11 Aug 1791 - Birth of his biological father John Dewey at Hinesburg, Chittenden County, Vermont, USA 

18 Oct 1793 - Birth of his biological mother Lucinda Cook at Hinesburg, Chittenden County, Vermont, USA 

8 Oct 1817 - Marriage of parents at Hinesburg, Chittenden County, Vermont, USA 

4 May 1834 - Birth at Hinesburg, Chittenden County, Vermont, USA 

23 Oct 1874 - (40 years) Death of his biological mother Lucinda Cook at Somers, Kenosha County, Wisconsin, USA 

3 Jan 1877 - (42 years) Death of his biological father John Dewey at Somers, Kenosha County, Wisconsin, USA 

26 Oct 1890 - (56 years) Death at Madison, Dane County, Wisconsin, USA