(ABT 1617-1671)
+---Thomas Cornish (-1712)
| +---Amy Garland 
+---Samuel Cornish (1687-1772)
| +---Cecily Jillard (-1710)
+---Thomas Cornish (ABT 1714-1791)
| +---Katherine Lanworthy (1697-1773)
+---William Cornish (1737-1802)
| +---Elizabeth ?
+---Thomas Cornish (ABT 1775-)
| +---Mary Adams (-1798)
+---William Neyle Cornish (ABT 1810-1863)
| +---Elizabeth Neyle (ABT 1780-1815)
+---Charles Cornish (1846-1935)
| +---Matilda Stranger (ABT 1811-1870)
Helen Constance Cornish (1879-1974)
| +---Donald McGregor
| +---Neil Joseph Bruce McGrigor (1817-1891)
| | +---Elizabeth Leitch
+---Elizabeth McGregor (1853-1938)
+---Margaret Ogilvy