23 Aug 1774 - Birth of his biological father DARTT at Gilsum, Cheshire County, New Hampshire, USA 

22 Sep 1781 - Birth of his biological mother Parthinia OLCOTT at Rockingham, Windham County,Vermont, USA 

11 Feb 1802 - Marriage of parents at Rockingham, Windham County, Vermont, USA 

1807 - Death of his biological father DARTT

1810 - Birth

24 Feb 1870 - Death of his biological mother Parthinia OLCOTT at Royalton, Windsor County, Vermont, USA 

Feb 1870 - Burial of his biological mother Parthinia OLCOTT at Plains Cemetery, Weathersfield, Windsor County, Vermont, USA