This family originates in Rouen, where Gilles Lemieux and his wife Isabelle Ango (daughter of Romain Ango) lived at the turn of the seventeenth century in the parish of St-Éloi (above; now a Protestant church). Some sources claim to trace them back further, to the village of St-Clair-sur-Elle (where Gilles died in 1613): Jean Lemieux (c1500-1585) lived there, and had a son Thomas (born about 1530, married Catherine about 1559; they were possibly the parents of Gilles).

Pierre Lemieux, the son of Gilles and Isabelle, was born about 1594 and died on July 31, 1629; he is buried at St-Éloi in Rouen. He married Marie Lugan or Luguen (parents unknown) on June 27, 1614 at the church of St-Michel in Rouen. Their son Pierre was baptized there on October 21, 1616.

Pierre Lemieux the younger was in Canada as early as 1638 (when he was 22), serving as a "grand valet" (a sort of foreman of servants) for the Compagnie des Cent Associés, the corporation then holding the contract for acquisition and settling of lands in Nouvelle-France. Once in Québec he worked as a cooper.

Pierre's brother Gabriel Lemieux also emigrated to Québec; he seems to have been born about 1615, and so was a year older than our ancestor. Gabriel married Marguérite Leboeuf in 1658, and died in 1700. They had five children. By his second wife Marthe Beauregard, Gabriel had five more children.

On September 10, 1647 Pierre married Marie Bénard at the Nôtre-Dame church in Québec city. The marriage must have happened very shortly after the arrival of the Bénard family. An inventory of Pierre's porperty was taken in July 1662, so he must have died shortly before that. His widow married Antoine Gentil in August 1668.

Children: Guillaume (born 1648 in Beaupré; all the other children were born in Québec city. He married Élisabeth Langlois, sister of our ancestor Anne Langlois Pelletier, 10 children; then Louise Picard, 3 children; and died in Berthier in 1725); Pierre (1650-a1681); Louis (see below); Marie (1654-1658); Jeanne (1656-a1666); Marie-Françoise (1658-a1666); and Thomas (1660-a1666).

Louis Lemieux was born in Québec city on February 6, 1652 and died on the Île-aux-Grues on December 30, 1693 (he was buried two days later at Cap-St-Ignace). He married Marie-Madeleine Côté (from one of the colony's oldest families, see Côté) on August 25, 1689 at Cap-St-Ignace. They had two children, both born at Île-aux-Grues and baptized at nearby Cap-St-Igance: Louis (see below) and Alexis (1685-1726, married Élisabeth Bélanger, 6 children).

The younger Louis Lemieux was born on October 4, 1683 and baptized two days later. He married Geneviève Fortin at L'Islet on January 11, 1705; they lived on a farm at Pointe-aux-Foins, and their fourteen children were all born and baptized there, in the parish of Cap-St-Ignace. The children:

i. Marie Genevieve, born November 24, 1705 in Cap St Ignace; died March 21, 1781 in L'Islet, ; married Louis Caron February 17, 1726/27 in Cap St Ignace.
ii. Louis, born March 8, 1706/07 in Cap St Ignace; married Marie Louise Gamache, November 22, 1734 in Cap St. Ignace.
iii. Augustin, born February 4, 1708/09 in Cap St Ignace; married Marie Catherine Brisson, November 14, 1734 in St Roche des Aulnais.
iv. Marguérite Françoise, born September 14, 1710 in Cap St Ignace; died January 28, 1782 in L'Islet; married Louis Bernier April 17, 1730 in Cap St Ignace.
v. Joseph, born March 18, 1711/12 in Cap St Ignace.
vi. Elisabeth, born January 19, 1713/14 in Cap St Ignace.
vii. Francois Xavier, born December 14, 1715 in Cap St Ignace.
viii. Marthe, born January 13, 1716/17 in Cap St Ignace.
ix. Louise, born November 15, 1718 in Cap St Ignace; married Martin Boulet, November 12, 1736 in Cap St Ignace.
49 x. Marie Felicité, born November 12, 1720 in St Thomas; married Jean Baptiste Morin, June 25, 1739 in Cap St. Ignace - ancestors of Senator Margaret Chase Smith.
xi. Isidore Calixte, born October 14, 1722 in St Thomas.
xii. Marie Madeleine, born August 10, 1724.
xiii. Isabelle, born December 18, 1726 in Cap St. Ignace.
xiv. Jean Baptiste, born June 27, 1732 in Cap St. Ignace.

Louis Lemieux died at Cap-St-Ignace on November 7, 1749. His wife died on July 30, 1763 at their farm. Their daughter Marie-Geneviève (wife of Louis Caron) was a great-great-great-grandmother of Marie Eva Jean Martin.