١٨٧٦–١٩٥٥♂ Frederick Parker Birkett | | | | ١٨٤٩–١٩٣٣♂ Thomas Parker Birkett ١٨٥٢–١٩٤٧♀ Annie Elizabeth Rodman | | | | ١٨١٣–١٨٨٠♂ Thomas Parker Birkett ١٨٢٠–١٩١٤♀ Sarah B. Roydhouse | | | | ١٧٨٥–١٨٥١♂ John Roydhouse ١٧٩٨–١٨٤٦♀ Francis Parkinson | | | | ١٧٥٢–١٧٩٢♂ Matthew Roydhouse ١٧٥٦–١٧٩٦♀ Rebecca Richardson |
| | | ١٧٧٦–١٨٤٤♂ Francis Parkinson ١٧٧٧–١٨٦٨♀ Margaret Sharp | | |
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