Edouard Jr. Viau 1930–1978 | | |
| | Edouard Sr. Viau 1897–1961 Yvonne Richardson 1895–1961 | | |
| | | | | | | | | | Herménégilde « Ladouceur » Martin – | | | | | | | | | Luc Crevier, St-Jean 1756–1838 Charlotte Martin, Beaulieu, Montpellier 1760–1830 | | |
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| | | Pierre « Ladouceur » Martin, Ladouceur – Marguerite « Montreuil » Sédilot – |
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| | | | | | | Jean-Baptiste Lecavalier – |
| | | | | | | Toussaint Joseph St-Aubin – | | |
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| | | Jean-Baptiste Viau 1843–1934 | | | | | | | | | | | | Pierre Jean Viau 1753–1792 | | |
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| | | Marguerite Legault, Deslauriers 1769–1802 | | | | Antoine Germain, St-Germain 1730–1791 Marie Amable Rouleau 1732–1755 | | |
| | | Madeleine Levron 1757–1815 | | |
| | | Jacques Legault, Deslauriers 1733–1809 Marie Anne Clément, Larivière, Chambly 1736– | | |
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| | | Jules Michel Lauzon 1825– | | | | | | | | Ursule Cholet, Laviolette 1749– | | |
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