25 May 1751 - Birth of his biological mother Deborah Parker at Westford, Middlesex County, Massachusetts, USA 

1751 - Birth of his biological father Henry Fletcher

1784 - Birth at Westford, Middlesex County, Massachusetts, USA 

1813 - (29 years) Death of his biological father Henry Fletcher

4 May 1826 - (42 years) Death of his biological mother Deborah Parker at Hinesburg, Chittenden County, Vermont, USA 

06 Nov 1879 - (95 years) Death at Reading, Middlesex County, Massachusetts, USA