+---John Tregembo (ABT 1775-)
| +---Ann Foss 
+---John Mitchell Tregembo (ABT 1808-BEF 1851)
| +---Jennifer Michell
+---William Tregembo (ABT 1840-)
| | +---James Kitchen
| +---Mary Kitchen (ABT 1813-)
Mary Elizabeth Tregembo (ABT 1866-)
+---Elizabeth ? (ABT 1840-)