1583 - Birth of his biological father Francis Hartwell at Bedfordshire, England 

1585 - Birth of his biological mother Mary Barnwell at Bedfordshire, England 

1608 - Birth of his wife Jasan-Jazan-Susan at England 

1608 - Marriage of parents at Billerica, Middlesex County, Massachusetts, USA 

21 Dec 1613 - Birth at Cranfield, Bedfordshire, England 

22 Aug 1616 - (2 years) Death of his biological mother Mary Barnwell at Bedfordshire, England 

12 May 1633 - (19 years) Birth of his son William Hartwell at Cranfield, Bedfordshire, England 

29 May 1636 - (22 years) Birth of his son John Hartwell at Cranfield, Bedfordshire, England 

11 Nov 1638 - (24 years) Birth of his son George Hartwell at Cranfield, Bedfordshire, England 

1638 - (24 years) Birth of his daughter Sarah Hartwell at Concord, Middlesex County, Massachusetts, USA 

1639 - (25 years) Marriage with Jasan-Jazan-Susan at Massachusetts, USA 

23 Feb 1640/41 - (27 years) Birth of his son John Hartwell at Concord, Middlesex County, Massachusetts, USA 

26 Jan 1645 - (31 years) Birth of his son Samuel Hartwell at Concord, Middlesex County, Massachusetts, USA 

25 Apr 1649 - (35 years) Birth of his daughter Martha Hartwell at Concord, Middlesex County, Massachusetts, USA 

25 Feb 1649/50 - (36 years) Birth of his daughter Mary Hartwell at Concord, Middlesex County, Massachusetts, USA 

31 Jul 1650 - (36 years) Death of his biological father Francis Hartwell at Bedfordshire, England 

8 Jul 1674 - (60 years) Death of his daughter Sarah Hartwell at Concord, Middlesex County, Massachusetts, USA 

12 Mar 1690 - (76 years) Death at Concord, Middlesex County, Massachusetts, USA 

15 Aug 1695 - Death of his wife Jasan-Jazan-Susan at Concord, Middlesex County, Massachusetts, USA 

Abt 1715 - Death of his son William Hartwell

26 Jul 1725 - Death of his son Samuel Hartwell at Concord, Middlesex County, Massachusetts, USA