Children:
- George Clarkson was born on 10 Oct 1752 in Douglas, Lanark.
- 1. William Clarkson was born on 26 Jun 1754 in Newton, Douglas.
- James Clarkson was born in 1756 in Lanarkshire.
- Mary Clarkson was born in 1758 in Lanarkshire.
- David Clarkson was born in 1760 in Douglas, Lanarks; was christened on 23 Jun 1760 in Douglas, Lanarkshire, Scotland.
- John Clarkson was born in 1762 in Lanarkshire.
- Andrew Clarkson was born in 1764 in Newton, Douglas.
- Benjamin Clarkson was born in 1768 in Newton, Douglas.
- Benjamin Clarkson was born in 1769 in Douglas Lanarks.
- Peter Clarkson was born on 23 Apr 1773 in Newton, Douglas, Lanark.
- Grizzel Clarkson was born on 27 Apr 1775 in Newton, Douglas, Lanark.
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