| Generation 1 - Joan Mary O'Brien: Born - 25 Oct 1917 - Biggleswade, Bedfordshire |
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| Generation 1 - Joan Mary O'Brien: Died - 28 Oct 2007 - Pinner, Middlesex |
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| Generation 2 - William Joseph O'Brien: Born - 8 Feb 1889 - Limerick, Ireland |
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| Generation 2 - William Joseph O'Brien: Died - 13 Jul 1971 - Derby, Derbyshire |
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| Generation 2 - Kate Harriet Grist: Died - 4th Jan 1953 - Derby, Derbyshire |
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| Generation 2 - Sarah Gleeson OBrien: Died - 25 Aug 1941 - Limerick, Ireland |
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| Generation 3 - Peter Grist: Born - 5 Oct 1853 - Boston, Lincolnshire |
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