| Name | Birth date | Death date | Birth location |
| Julien Mercier | WFT Est. 1602-1634 | WFT Est. 1659-1721 | |
| Julien Mercier | WFT Est. 1615-1656 | WFT Est. 1654-1738 | |
| Louis Mercier | 1758 | WFT Est. 1759-1848 | |
| Louis Mercier | 26 May 1708 | WFT Est. 1734-1799 | notre dame, quebec, canada |
| Louis Mercier | 1718 | 1792 | |
| Louis Mercier | 1 September 1686 | 7 May 1715 | quebec, canada |
| Louis Mercier | 1661 | 1728 | Chateau-Richer, Canada |
| Madeleine Mercier | WFT Est. 1715-1730 | WFT Est. 1747-1819 | |
| Madeleine Mercier | 7 March 1720 | WFT Est. 1743-1814 | beaupre, canada |
| Magnes Mercier | 1695 | WFT Est. 1724-1789 | |
| Manne Mercier | WFT Est. 1702-1712 | WFT Est. 1736-1804 | |
| Manne Mercier | 1696 | 1724 | |
| M-Anne Mercier | Abt. 1687 | WFT Est. 1718-1781 | |
| M-Anne Mercier | WFT Est. 1689-1716 | WFT Est. 1738-1806 | |
| Marguerite Mercier | 1677 | WFT Est. 1704-1771 | beaupre, canada |
| Marguerite Mercier | WFT Est. 1779-1795 | WFT Est. 1813-1883 | Canada |
| Marguerite Mercier | 14 May 1692 | 9 April 1729 | quebec, canada |
| Marguerite Mercier | 1704 | WFT Est. 1733-1798 | |
| Marie Mercier | Abt. 1654 | 1 December 1725 | d'origine inconnue |
| Marie Mercier | WFT Est. 1714-1743 | WFT Est. 1765-1830 | |
| Marie Mercier | WFT Est. 1852-1888 | WFT Est. 1886-1972 | |
| Mcatherine Mercier | 28 February 1745 | 16 April 1745 | cahokia, st.clair, illinois |
| Mdorothee Mercier | 1758 | WFT Est. 1759-1852 | |
| Mfrancoise Mercier | 1714 | WFT Est. 1751-1809 | |
| Michel Mercier | 1751 | WFT Est. 1752-1841 | |
| Michel Mercier | WFT Est. 1790-1835 | WFT Est. 1830-1915 | |
| Mjoseph Mercier | 1728 | WFT Est. 1759-1822 | |
| Mjoseph Mercier | 1760 | WFT Est. 1761-1854 | |
| Mjoseph Mercier | 1748 | WFT Est. 1749-1842 | |
| Mmadeleine Mercier | 1763 | WFT Est. 1764-1857 | |
| Mmadeleine Mercier | 1760 | WFT Est. 1761-1854 | |
| Mmadeleine Mercier | 1713 | WFT Est. 1768-1808 | |
| Mmadeleine Mercier | 1674 | WFT Est. 1706-1768 | Beaupre, Canada |
| Mreine Mercier | 1711 | 1765 | |
| Mtherese Mercier | 16 November 1710 | WFT Est. 1746-1805 | notre dame, quebec, canada |
| Mursule Mercier | September 1727 | WFT Est. 1728-1821 | |
| Paschal Mercier | 1684 | WFT Est. 1685-1774 | |
| Paschal Mercier | 7 March 1656 | 29 October 1695 | beaupre, canada |
| Paschal Mercier | WFT Est. 1638-1676 | WFT Est. 1709-1762 | |
| Pierre Mercier | 1756 | WFT Est. 1757-1846 | |
| Pierre Mercier | 1685 | 1746 | |
| Pierre Mercier | 11 January 1671 | 16 December 1729 | Canada |
| Pierre Mercier | 1716 | WFT Est. 1749-1807 | |
| Pierre Mercier | 10 January 1718 | 26 December 1772 | beaupre, canada |
| Pierre Louis Mercier | 1748 | WFT Est. 1765-1838 | |
| Pierre Simon Mercier | 5 June 1720 | WFT Est. 1738-1811 | notre dame, quebec, canada |
| Pjoseph Mercier | 15 October 1761 | WFT Est. 1762-1851 | cahokia, st.clair, illinois |
| Suzanne Mercier | WFT Est. 1586-1612 | WFT Est. 1639-1701 | |
| Wilfrid Mercier | WFT Est. 1830-1861 | WFT Est. 1886-1946 | |
| Mercy | 13 May 1677 | 26 April 1762 | CONCORD,MA |