(-30 NOV 1970)
Mervyn Alexander
| +---William Nicolson
| +---John Nicolson
| | +---Margaret Nicolson 
| +---William Nicolson (01 OCT 1696-1781)
| | +---Joanna Coke
| +---Joseph Nicolson (20 AUG 1735-)
| | +---Elizabeth Trosse
| +---William Nicolson (30 JUL 1774-)
| | +---Mary Dunsford
| +---William Nicolson (14 AUG 1805-)
| | +---Sarah Hewett
| +---William (Patrick) Nicolson (10 FEB 1835-28 JUL 1898)
| | | +---William Nicolson
| | | +---John Nicolson
| | | | +---Margaret Nicolson
| | | +---William Nicolson (01 OCT 1696-1781)
| | | | +---Joanna Coke
| | | +---Joseph Nicolson (20 AUG 1735-)
| | | | +---Elizabeth Trosse
| | | +---Thomas Nicolson (01 JUL 1773-)
| | | | +---Mary Dunsford
| | +---Martha Nicolson (20 DEC 1803-)
| | +---Esther Birt
| +---Charles Ebenezer William Thurston G Nicolson (14 FEB 1867-26 JUN 1954)
| | | +---William Cowley
| | +---Ellen Cowley (26 SEP 1826-12 SEP 1913)
+---Dorothy Ellen Nicolson (04 APR 1904-)
+---Isabella Dawson (20 JAN 1877-08 JAN 1946)