١٨٩٢–١٩٧٧♀ Edna Florence Greatbatch ١٩٠٠–١٩٦٠♂ John Newton Stephenson | | | | ١٨٥٨–١٩٠٩♂ Edwin Greatbatch ١٨٦٦–١٩٣٣♀ Annie Cecily Thomson | | | | ١٨٣٥–١٨٩٦♂ John Bell Thomson ١٨٤٦–١٩٢٤♀ Annie McCrostie | | | | ١٨١٠–١٨٨٧♂ John McCrostie ١٨١٤–١٨٩٨♀ Jessie Ann Robertson | | | | ١٧٧٩–١٨٣٥♂ John McCrostie –١٨٦٥♀ Catherine Anderson | | |
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