28 Nov 1700 - Birth of his biological father Robert Avery at Greenland, Rockingham County, New Hampshire, USA 

1705 - Birth of his biological mother Sarah Petts at Greenland, Rockingham County, New Hampshire, USA 

5 Nov 1724 - Marriage of parents at Greenland, Rockingham County, New Hampshire, USA 

4 Aug 1737 - Birth at Townsend, Middlesex County, Massachusetts, USA 

1756 - (18 years) Death of his biological mother Sarah Petts at Westford, Middlesex County, Massachusetts, USA 

1790 - (52 years) Death at Pepperell, Middlesex County, Massachusetts, USA