Grant Ernest MacKay (13 JUN 1969-)
| +---Ernest Henry Birchall (-29 OCT 1966)
+---Patricia Ann Birchall 
(18 JUL 1940-)
| +---John Clemmow (ABT 1500-)
| +---Walter Clemmow (ABT 1540-)
| +---Robert Clymow (ABT 1570-)
| | +---Maria Body
| +---John Clemowe (ABT 1599-)
| | +---Onera Hocking
| +---Francis Clemow (ABT 1646-)
| | +---Elizabeth Spry
| +---George Clemo (ABT 1663-)
| | +---Ann Jane (ABT 1646-)
| +---George Petherick Clemo (ABT 1692-)
| | +---Dorothy Honor
| +---John Clemo (ABT 1725-)
| | +---Margery Goodfellow
| +---Thomas Clymoe (ABT 1758-)
| | +---Joyce Bunster
| +---John Climo (ABT 1799-14 FEB 1847)
| | +---Catherine Burton (ABT 1758-13 FEB 1846)
| +---James Climo (08 FEB 1820-10 SEP 1911)
| | +---Mary Mann
| +---John Climo (19 APR 1846-21 APR 1895)
| | | +---John Phillips
| | +---Jane Phillips (ABT 1821-01 JUL 1884)
| | +---Ann Cox
| +---Alfred Climo (14 MAR 1885-16 JUN 1915)
| | +---Catherine (Kate) Harrington (04 AUG 1855-18 AUG 1934)
+---Daphne Jane Climo (04 FEB 1913-)
+---Jane Augusta Kappely (08 MAY 1884-29 MAR 1975)