+---Colin McKay
| | +---Thomas Purnell
| +---Maisie Purnell 
| | +---John Waterson (ABT 1804-SEP 1875)
| | +---John Waterson (ABT 1831-)
| | | +---Mary Wilkie (ABT 1804-)
| | | +---Elizabeth ? (ABT 1780-)
| | +---John Waterson
| | | | +---James Burling (30 OCT 1776-27 SEP 1849)
| | | | +---Henry Burling (05 OCT 1807-17 SEP 1911)
| | | | | +---Joanna Pike-Barnes
| | | +---Rosetta (Rose) Burling (1834-14 AUG 1899)
| | | | +---John Worsley
| | | +---Mary Worsley (04 FEB 1801-14 AUG 1864)
| +---Gladys Waterson
| | +---Richard Burgess Sayer (ABT 1818-26 DEC 1854)
| | +---Richard Nicholas Sayer (1844-30 OCT 1902)
| | | | +---John Oxenham (-1838)
| | | +---Jemima Oxenham (03 OCT 1826-)
| | | +---Elizabeth Norman
| +---Edith Sayer (-13 MAY 1951)
| | +---Richard Blake (1815-08 JUN 1893)
| +---Hester Blake (1843-25 JUL 1914)
Campbell McKay
+---Margaret McDowell