+---William Wretham (ABT 1820-DEC 1884)
| +---Rhoda James 
+---John Wretham (27 NOV 1854-OCT 1895)
| | +---Andrew Rolf
| | +---Andrew Rolf (ABT 1698-JUN 1760)
| | | +---Mary ? (-OCT 1709)
| | +---Andrew Rolph (ABT 1726-SEP 1807)
| | | +---Elizabeth ? (-FEB 1758)
| | +---Evans Rolph (ABT 1767-JUL 1849)
| | | +---Elizabeth ? (ABT 1730-JAN 1816)
| | +---John Rolph (19 FEB 1799-)
| | | | +---Robert Gathercole
| | | | +---Robert Gathercole (ABT 1753-APR 1794)
| | | | | +---Mary Belcham
| | | +---Mary Gathercole (ABT 1779-DEC 1858)
| | | +---Elizabeth Turrington (ABT 1751-OCT 1817)
| +---Sarah Rolph (04 MAY 1826-1904)
| +---Sarah Harding (ABT 1803-)
Cecil James Wretham (07 FEB 1890-28 MAR 1976)
| +---Andrew Rolf
| +---Andrew Rolf (ABT 1698-JUN 1760)
| | +---Mary ? (-OCT 1709)
| +---John Rolph (ABT 1723-APR 1803)
| | +---Elizabeth ? (-FEB 1758)
| +---John Rolph (ABT 1765-)
| | +---Alice Roper (ABT 1732-DEC 1808)
| +---John Rolph (20 AUG 1786-FEB 1870)
| | | +---John Hardy
| | +---Mary Hardy (ABT 1765-JAN 1816)
| | +---Mary Roper
| +---William Rolph (ABT 1821-MAY 1883)
| | | +---James Crow (ABT 1760-)
| | +---Vine Crow (ABT 1787-JUL 1863)
| | +---Mary Place
+---Ellen Rolph (ABT 1853-07 NOV 1939)
| +---Robert Flack
| +---Joshua Flack
| +---Nathaniel Flack (ABT 1752-)
| +---Simon Flack (ABT 1772-APR 1814)
| | +---Sarah Hallet (ABT 1750-1817)
| +---John Flack (ABT 1798-SEP 1878)
| | +---Hannah Mays (ABT 1767-DEC 1835)
+---Mary Ann Flack (ABT 1824-)
| +---William Drake
+---Elizabeth Drake (ABT 1799-03 MAR 1849)
+---Sarah Dalliday