+---Martyn Keys (25 OCT 1942-19 SEP 1992)
| | +---Thomas Martyn (BEF 1674-)
| | +---Philip Martyn (1702-)
| | | +---Mary Congdon 
| | +---Robert Martyn (1733-)
| | | +---Elizabeth ?
| | +---Philip Martyn (1766-)
| | | +---Elizabeth Webb
| | +---Robert Martyn (1798-)
| | | +---Mary Ann Warwick
| | +---John Martyn (19 FEB 1826-30 MAR 1893)
| | | +---Elizabeth Nicholls (1791-)
| | +---Philip Martyn (06 FEB 1855-06 AUG 1925)
| | | +---Fanny Grigg (ABT 1827-)
| | +---Herbert Martyn (22 AUG 1890-06 AUG 1927)
| | | | +---William McCorkindale
| | | +---Mary McCorkindale (31 MAY 1859-1938)
| | | +---Margaret Sheddan
| +---Joan Martyn (11 JUL 1917-)
| +---Bertha Burrows
Mathew Thurlow Keys (07 AUG 1973-)
+---Elizabeth Joan Smales