23 May 1642 - Birth of his biological mother Ruth Wheeler at Concord, Middlesex County, Massachusetts, USA 

26 Jan 1645 - Birth of his biological father Samuel Hartwell at Concord, Middlesex County, Massachusetts, USA 

26 Oct 1665 - Marriage of parents at Concord, Middlesex County, Massachusetts, USA 

19 Aug 1671 - Birth at Bedford, Middlesex County, Massachusetts, USA 

1674 - (2 years) Birth of his wife Ruth Hosmer at Concord, Middlesex County, Massachusetts, USA 

1702 - (30 years) Marriage with Ruth Hosmer at Concord, Middlesex County, Massachusetts, USA 

5 Nov 1703 - (32 years) Birth of his son William Hartwell at Concord, Middlesex County, Massachusetts, USA 

19 Dec 1703 - (32 years) Death of his biological mother Ruth Wheeler at Concord, Middlesex County, Massachusetts, USA 

14 May 1705 - (33 years) Birth of his daughter Ruth Hartwell at Concord, Middlesex County, Massachusetts, USA 

27 Mar 1707 - (35 years) Birth of his daughter Dorothy Hartwell at Concord, Middlesex County, Massachusetts, USA 

20 Mar 1709 - (37 years) Birth of his son Daniel Hartwell at Concord, Middlesex County, Massachusetts, USA 

15 Sep 1712 - (41 years) Birth of his son Timothy Hartwell at Concord, Middlesex County, Massachusetts, USA 

1716 - (44 years) Birth of his son Stephen Hartwell at Bedford, Middlesex County, Massachusetts, USA 

1718 - (46 years) Birth of his daughter Mary Hartwell at Concord, Middlesex County, Massachusetts, USA 

17 Jul 1722 - (50 years) Birth of his son Joseph Hartwell at Concord, Middlesex County, Massachusetts, USA 

17 Jan 1723 - (51 years) Birth of his son Joseph Hartwell at Bedford, Middlesex County, Massachusetts, USA 

26 Jul 1725 - (53 years) Death of his biological father Samuel Hartwell at Concord, Middlesex County, Massachusetts, USA 

11 Dec 1742 - (71 years) Death at Bedford, Middlesex County, Massachusetts, USA 

20 Apr 1746 - Death of his son William Hartwell at Bedford, Middlesex County, Massachusetts, USA 

17 Feb 1752 - Death of his wife Ruth Hosmer at Bedford, Middlesex County, Massachusetts, USA 

9 Oct 1755 - Death of his daughter Dorothy Hartwell at Stoneham, Middlesex County, Massachusetts, USA 

25 Oct 1759 - Death of his daughter Ruth Hartwell at Billerica, Middlesex County, Massachusetts, USA 

1771 - Death of his daughter Mary Hartwell

7 Jul 1792 - Death of his son Joseph Hartwell at Bedford, Middlesex County, Massachusetts, USA 

12 Jul 1792 - Death of his son Stephen Hartwell at Bedford, Middlesex County, Massachusetts, USA 

2 Jul 1795 - Death of his son Daniel Hartwell at Charlemont, Franklin County, Massachusetts, USA 

27 Dec 1797 - Death of his son Timothy Hartwell at Bedford, Middlesex County, Massachusetts, USA 

1803 - Death of his son Joseph Hartwell at Middlesex, Middlesex County, New Jersey, USA