The founder of this family, Laurence or Laurent Granger, is supposed to have been born in Plymouth, England in 1637. He died October 26, 1719 in Port-Royal. He came to Acadia with the English governor, Thomas Temple, in 1657, presumably as a soldier. On his marriage to Marie Landry in 1667, he converted to Catholicism. We know nothing of his parentage.

They had eight children: Marie-Marguérite (c1668, married Nicolas Babineau); Pierre (c1670, married Isabelle Guilbault, 9 children); Jacques (1672-1739, married Marie Girouard); René (1676-1740, married Marguérite Thériault); Claude (c1678, married Jeanne Guilbault); Marie (c1680, married Pierre Lanoue); Anne (c1684, married Pierre Melançon); and Laurent (1688, married Anne Bourg).

Pierre and Anne Granger Melançon were married at Port-Royal in 1712, and had three children; see Melançon.