12 Sep 1779 - Birth of his biological father Henry Dewey at Hanover, Grafton County, New Hampshire, USA 

10 Apr 1795 - Birth of his biological mother Amelia Dutton at Alstead, Cheshire County, New Hampshire, USA 

4 Mar 1816 - Marriage of parents at Berlin, Washington County, Vermont, USA 

31 Mar 1817 - Birth at Berlin, Washington County, Vermont, USA 

06 Apr 1817 - Death at Berlin, Washington County, Vermont, USA 

Apr 1817 - Burial at Dewey-Wright Cemetery, Berlin, Washington County, Vermont, USA 

03 Oct 1875 - Death of his biological father Henry Dewey at Berlin, Washington County, Vermont, USA 

Oct 1875 - Burial of his biological father Henry Dewey

30 Sep 1881 - Death of his biological mother Amelia Dutton at Waitsfield, Washington County, Vermont, USA 

Oct 1881 - Burial of his biological mother Amelia Dutton at Waitsfield Village Cemetery, Waitsfield, Washington County, Vermont, USA