| Name | Birth date | Death date | Birth location |
| ? Mercier | WFT Est. 1815-1847 | WFT Est. 1853-1930 | |
| Agnes Mercier | WFT Est. 1694-1721 | WFT Est. 1743-1811 | |
| Angelique Mercier | 21 September 1722 | WFT Est. 1740-1816 | beaupre, canada |
| Angelique Mercier | 1677 | WFT Est. 1704-1771 | beaupre, canada |
| Angelique Mercier | 1714 | WFT Est. 1743-1808 | |
| Angélique Mercier | WFT Est. 1654-1681 | WFT Est. 1703-1771 | |
| Apolline Mercier | 1723 | WFT Est. 1753-1817 | |
| Augustin Mercier | 1750 | WFT Est. 1751-1840 | |
| Augustin Mercier | 1718 | 1776 | |
| Baptiste Mercier | 25 December 1723 | WFT Est. 1740-1813 | kaskaskia, illinois |
| Charles Mercier | 1 September 1658 | 1731 | Beaupre, Canada |
| Dorthee Mercier | Bef. 1710 | WFT Est. 1761-1805 | |
| Elisabeth Mercier | 1709 | WFT Est. 1739-1803 | |
| Elisabeth Mercier | 15 February 1728 | WFT Est. 1742-1822 | beaupre, canada |
| Etienne Mercier | Bef. 1765 | WFT Est. 1794-1856 | Canada |
| Francois Mercier | Bef. 1750 | WFT Est. 1770-1841 | |
| Francois Mercier | WFT Est. 1577-1629 | WFT Est. 1615-1709 | TOUROUVRE, au PERCHE |
| Francois Mercier | WFT Est. 1687-1719 | WFT Est. 1744-1806 | |
| Francois Mercier | WFT Est. 1574-1603 | WFT Est. 1628-1688 | |
| Francois Mercier | WFT Est. 1565-1610 | WFT Est. 1602-1691 | |
| Francoise Mercier | WFT Est. 1717-1744 | WFT Est. 1766-1834 | |
| Genevieve Mercier | WFT Est. 1740-1769 | WFT Est. 1745-1851 | |
| Genevieve Mercier | Abt. 1742 | WFT Est. 1777-1837 | |
| Henri Marie Mercier | 1749 | WFT Est. 1777-1840 | |
| Hubert Mercier | WFT Est. 1740-1769 | WFT Est. 1746-1848 | |
| Isabelle Mercier | WFT Est. 1696-1722 | WFT Est. 1752-1810 | Quebec, Canada |
| Jacques Mercier | 29 April 1726 | WFT Est. 1727-1816 | kaskaskia, illinois |
| Jacques Mercier | 14 January 1760 | WFT Est. 1779-1851 | cahokia, st.clair, illinois |
| Jaugustin Mercier | 20 March 1704 | 17 April 1752 | quebec, canada |
| Jbaptiste Mercier | 29 July 1719 | WFT Est. 1766-1811 | kaskaskia, illinois |
| Jbaptiste Mercier | WFT Est. 1712-1743 | Bef. 1760 | |
| Jbaptiste Mercier | Bef. 1700 | WFT Est. 1730-1791 | |
| Jean Mercier | WFT Est. 1639-1671 | WFT Est. 1696-1758 | |
| Jean Mercier | November 1667 | Bef. 1701 | beaupre, canada |
| Jean Mercier | 1686 | WFT Est. 1687-1776 | |
| Jean Mercier | WFT Est. 1740-1769 | WFT Est. 1746-1848 | |
| Jeanne Mercier | Abt. 1626 | 14 December 1687 | LUCON,POITOU,FRANCE |
| Jeanne Mercier | WFT Est. 1595-1622 | WFT Est. 1644-1712 | |
| Jeanne Mercier | WFT Est. 1590-1635 | WFT Est. 1622-1718 | PERCHE |
| Jfrancois Mercier | 23 March 1699 | WFT Est. 1751-1791 | quebec, canada |
| Jochim Hypolite Mercier | 1739 | WFT Est. 1770-1830 | |
| Joseph Mercier | 1730 | WFT Est. 1760-1821 | |
| Joseph Mercier | 30 April 1736 | WFT Est. 1737-1826 | |
| Joseph Francois Mercier | 13 March 1706 | WFT Est. 1735-1797 | notre dame, quebec, canada |
| Joseph Marie Mercier | 9 October 1713 | WFT Est. 1763-1805 | notre dame, quebec, canada |
| Joseph Marie Mercier | 8 September 1725 | WFT Est. 1769-1817 | Ste.Anne, Beaupre, Canada |
| Julien Mercier | 13 December 1764 | WFT Est. 1765-1854 | st.philippe, illinois |
| Julien Mercier | 1694 | 19 October 1763 | |
| Julien Mercier | WFT Est. 1666-1698 | WFT Est. 1723-1785 | |
| Julien Mercier | Abt. 1625 | October 1676 | St.Aubin, Montagne, Chartes, Tourouvre, Perche, France |