| Generation 1 - Caroline Edith Marcus Flagg: Died - 16 Jan 1992 - Newton, Middlesex, Massachusetts, USA |
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| Generation 2 - Edward Gustavis "Guss" Marcus, Marquis: Died - 7 Oct 1937 - Waltham, Middlesex, Massachusetts, USA |
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| Generation 2 - Edward Gustavis "Guss" Marcus, Marquis & Annie Anna Grist Marcus, Marquis: Married - 10 Jul 1894 - Montréal, Montréal (Urban Agglomeration), Quebec, Canada |
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| Generation 2 - Annie Anna Grist Marcus, Marquis: Died - 29 Mar 1911 - Montréal, Montréal (Urban Agglomeration), Quebec, Canada |
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| Generation 3 - Charles Victor Eugène Marcus: Born - 30 Mar 1844 - Paris, Île-de-France, France |
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| Generation 3 - Charles Victor Eugène Marcus: Died - 1895 - Montréal, Montréal (Urban Agglomeration), Quebec, Canada |
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| Generation 3 - Sarah Rebecca Parr: Born - Abt 1849 - England |
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| Generation 3 - Sarah Rebecca Parr: Died - 1911 - Montréal, Montréal (Urban Agglomeration), Quebec, Canada |
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| Generation 3 - Caroline Kezia Harrison: Died - Jan 1881 - Holborn, Middlesex |
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| Generation 4 - William John Grist: Christened - 2 Aug 1795 - Middlesex |
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| Generation 4 - Lucy Christiana Saunders: Christened - 20 Feb 1803 - Chelmsford, Essex |
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| Generation 4 - Lucy Christiana Saunders: Died - Mar 1892 - Holborn, Middlesex |
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| Generation 4 - William Harrison: Born - Abt 1823 - Holborn, Middlesex |
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| Generation 4 - William Harrison: Died - Jun 1893 - Mile End Old Town, London |
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| Generation 4 - Elisabeth Mary Ann Ravenscroft: Died - Apr 1900 - Mile End Old Town, London |
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| Generation 5 - William Grist: Christened - 14 Aug 1760 - Middlesex |
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| Generation 5 - Mary Ann Miles: Born - 6 Oct 1770 - Holborn, Middlesex |
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| Generation 5 - Mary Ann Miles: Christened - 18 Oct 1770 - Holborn, Middlesex |
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