14 Sep 1738 - Birth of her biological father William Markham at Haddam, Middlesex County, Connecticut, USA 

22 Jul 1753 - Birth of her biological mother Abigail Willey at East Haddam, Middlesex County, Connecticut, USA  

4 Jun 1761 - Marriage of parents at East Haddam, Middlesex County, Connecticut, USA  

23 Nov 1763 - Birth at East Haddam, Middlesex County, Connecticut, USA  

1 May 1792 - (28 years) Death of her biological mother Abigail Willey at Avon Rush, Livingston County, New York, USA 

1 May 1792 - (28 years) Death of her biological father William Markham at Haddam, Middlesex County, Connecticut, USA 

18 Feb 1804 - (40 years) Death at Lempster, Sullivan County, New Hampshire, USA