Biographie Mercier Augustin
1861 - Recensement famille: Augustin Mercier & Hélène Morin
https://recherche-collection-search.bac-lac.gc.ca/fra/accueil/notice?app=Census&idNumber=44509894&ecopy=4108791_00133
1871 - Recensement famille: Augustin Mercier & Hélène Morin
https://recherche-collection-search.bac-lac.gc.ca/fra/accueil/notice?app=Census&idNumber=39975072&ecopy=4395451_00488
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