(1891-)
Alan Norman Ryleigh (31 MAY 1928-25 SEP 1997)
| +---Philip Trewartha (-ABT 1624)
| +---John Trewartha (ABT 1598-1687)
| | | +---Henry Cock (ABT 1537-ABT 1616)
| | +---Agnes Cock 
(ABT 1564-)
| | | +---Lawrence Rondall alias Tolsethen
| | +---Margery Rondall (-ABT 1623)
| +---Philip Andrewartha (ABT 1642-MAY 1705)
| | | +---John Carthew
| | +---Mary Carthew (ABT 1609-MAR 1671)
| | | +---Robert Jenken (-ABT 1569)
| | | +---Richard Roberts alias Trevernan alias Jenken (-ABT 1624)
| | | | +---Jennet ? (-ABT 1588)
| | +---Eleanor Roberts (ABT 1567-ABT 1655)
| | | +---John Tremeryn
| | +---Johan or Jane Tremeryn (-ABT 1603)
| | +---Jennet ? (-ABT 1588)
| +---John Andrewartha (ABT 1680-ABT 1720)
| | | +---Henry Cock (ABT 1537-ABT 1616)
| | | +---William Cock alias Connerwartha (ABT 1572-1645)
| | | | | +---Lawrence Rondall alias Tolsethen
| | | | +---Margery Rondall (-ABT 1623)
| | | +---Henry Cock (ABT 1604-ABT 1659)
| | | | | +---James Edwards
| | | | +---Alice Edwards (-ABT 1614)
| | +---Mary Cock (ABT 1656-MAY 1720)
| | | +---Edwards Williams
| | +---Cheston Williams (-ABT 1665)
| | +---Agnes Jenkin
| +---Richard Andrewartha (02 NOV 1718-17 OCT 1767)
| | +---Mary Whitfar (ABT 1684-ABT 1748)
| +---Richard Andrewartha (ABT 1755-19 OCT 1822)
| | +---Mary Shugg (ABT 1722-ABT 1782)
| +---Phillip Andrewartha (ABT 1792-04 MAR 1873)
| | +---Rebecca Lobb (22 FEB 1756-21 NOV 1828)
| +---John Andrewartha (ABT 1832-17 SEP 1901)
| | +---Elizabeth Cockin (17 FEB 1793-24 SEP 1865)
| +---John Henry Andrewartha (ABT 1855-01 MAY 1908)
| | +---Mary Boney (1831-16 DEC 1915)
+---Mary Ellen Andrewartha (1895-1964)
+---Elizabeth Vallance (1864-08 OCT 1944)