Lyall Parker
| +---William (Bill) Barlow
+---Sylvia Barlow 
(1907-1983)
| +---William Thomas Hitchcock (ABT 1800-)
| +---Thomas Hitchcock (1827-15 SEP 1903)
| | +---Maria Jane Bloomfield
+---Isabella Hitchcock (10 MAY 1868-)
+---Elizabeth Elliot (1830-12 AUG 1888)