up to the 12th generation
0━┳
Robert Clarkson † & Hannah Gleadow †
┗━1━┳
Robert Clarkson 1785- &1806 Frances Scutt 1785-
┣━1━━
Robert Clarkson 1808-
┣━2━━
John Clarkson 1811-
┣━3──
Ann Clarkson ca 1814-
┗━4──
Mary Clarkson 1817-
Total: 5 descendants (8 individuals with spouses)