| | ١٩٥٠–♂ Philip M. Hollowday | | | | ١٩٢٤–١٩٩٠♂ Robert Reginald Hollowday ١٩٢٥–♀ Kathleen M. Roydhouse | | | | ١٨٩٥–١٩٦٠♂ Gilbert Hollowday |
| | | ١٨٩٦–١٩٨٣♂ Charles Ernest Roydhouse | | | | ١٨٥٤–١٩٠٠♂ William Clark Roydhouse ١٨٥٥–١٩٣٢♀ Elisabeth Harrison | | |
| | | ١٨٧٤–♀ Isabella Annie Davis |
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| | | ١٩٢٢–♂ Norman G. Thurwell | | |
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