(1768-1850)
+---George How (1805-1887)
| +---Elizabeth Rebdell 
(1767-1841)
+---Samuel How (ABT 1831-1922)
| | +---Samuel Esterbrook
| +---Dianne Esterbrook (1803-1894)
| +---Ann ?
+---Samuel Percy How (1870-1917)
| +---Mary Ann Grigson (1832-1917)
+---George McGregor How (1910-1982)
| | +---Walter Cornish (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)
| +---Margaret Matilda Cornish (1877-1927)
| | +---Donald McGregor
| | +---Neil Joseph Bruce McGrigor (1817-1891)
| | | +---Elizabeth Leitch
| +---Elizabeth McGregor (1853-1938)
| +---Margaret Ogilvy
Patricia Joyce How (1942-)
| +---Robert William Signal (1887-)
+---Margaret Joyce Signal (1916-)
| +---Joshua Rix (1821-)
| +---Robert George Rix (1849-)
| | +---Martha Nightingale
+---Martha Nightingale Rix (1887-)
+---Emma Roland Wilson Reynolds