| Male HARKER, John |
| Birth | 1751 | Thwaite, Yorkshire (North Riding), England |
| Death | 15 Dec 1822 | Gunnerside, Yorkshire (North Riding), England |
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| Female GUY, Nanny |
| Birth | 1745 | Thwaite, Yorkshire (North Riding), England |
| Death | 20 Aug 1826 | Ivelet, Gunnerside, Yorkshire (North Riding), England |
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| Male HARKER, Simon |
| Birth | 1776 | Thwaite, Yorkshire (North Riding), England |
| Death | Yes, date unknown | |
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| Spouse | ALDERSON, Barbara | F6087 | |
| Marriage | 20 Oct 1807 | Grinton,Yorkshire (North Riding), England |