Super-ancestors in the genealogy of French Canadians who stand out for their large number of occurrences in the same genealogy?

You boast yourself for having an ancestor named Abraham Martin, famous because his land on Cap Diamant in Quebec City became the famous “Plains of Abraham”? You can be proud, but you are far from unique. Abraham Martin and his wife Marguerite Langlois appear not only in the genealogy of the majority of French Canadians, but they can also be counted more than once within the same genealogy.

The number of occurrences represents the number of times that an ancestor is counted within the same genealogy

But by which phenomenon can an ancestor appear several times in the same genealogy?

In the fictional family tree below, the parents of Julie Tremblay are first cousins
because they share common grandparents.
The couple Joseph Tremblay and Agathe Côté therefore appears twice in Julie’s genealogy.

schéma julie tremblay

In a real family tree that spreads over many generations, the same phenomenon occurs very often. To demonstrate this, we reconstructed the genealogy of 25,757 individuals whose parents married in Quebec between 1925 and 1948. Nearly 600,000 ancestors distributed among 16 generations were found in the BALSAC database. Among these ancestors, certain couples stand out for their large number of occurrences within a genealogy. Here are the three most important.


Pierre TREMBLAY and Anne ACHON: This couple of French immigrants who married in Quebec in 1657 are ancestors to all the Tremblays of Quebec. Found in about 46% of genealogies, the couple TREMBLAY-ACHON holds the record for the largest number of occurrences appearing up to 92 times within the same genealogy


Abraham MARTIN and Marguerite LANGLOIS: The MARTIN-LANGLOIS couple arrived in New France around 1620. They have a very large descent by their daughters. The couple appears in 77% of genealogies with a maximum number of occurrences of 69 in the same genealogy.


Zacharie CLOUSTIER and Sainte DUPONT : Married in France in 1616, this couple immigrated to New France with five children. It appears in nearly 82% of genealogies. We have counted it up to 50 times within the same genealogy.

graph super ancestors

Data Source: BALSAC Population register, 25 757 genealogies of married couples between 1925 and 1948