French-Canadian Genealogy: Drouin, PRDH and dit Names

French-Canadian ancestry is the easiest deep genealogy in North America and the most easily derailed. The Catholic Church in Quebec kept baptism, marriage and burial registers in duplicate from 1621, and almost all of them survive — which is why a French-Canadian line routinely runs back nine or ten generations to a named immigrant who stepped off a ship in the 1600s. The thing that stops people is not missing records. It is the dit name: a second surname a family carried alongside its real one, so that the same man is Beaudry in one record and Lamarche in the next. Learn that one convention and Quebec opens up. Once it does, the tree gets crowded fast, and the cousin calculator is the quickest way to work out what all those Tremblays are to you.

Why Quebec records are so complete

The Catholic Church in New France was required to keep parish registers in duplicate from 1621. One copy stayed in the parish; the other went to the civil authorities. When one burned, the other usually survived. That single administrative habit is why Quebec has a near-continuous run of vital records four hundred years long while neighboring jurisdictions have fragments.

Church registers were also civil registers. In Quebec the parish act was the legal record of birth, marriage and death until civil registration took over in 1994. So there is no dividing line to worry about, no year where the record type changes and you have to switch archives.

The entries are wordy, and that is good news. A French-Canadian baptismal act names the child, the date of birth and of baptism, the father with his occupation and parish, the mother with her maiden name, and the godparents with their relationship to the child. Godparents were overwhelmingly grandparents, aunts, uncles and older siblings.

A marriage act is even richer. It names both sets of parents, marks the dead ones ("feu Jean Gagnon"), gives the home parish of each, records any dispensation for consanguinity, and lists witnesses by relationship — "friend of the groom", "uncle of the bride". If you read only one record, read the marriage.

The Drouin collection: the image layer

The Drouin Institute microfilmed virtually every Catholic parish register in Quebec, along with Acadian parishes and the French-Canadian parishes of New England, and that microfilm became the digitized Drouin collection now indexed on Ancestry and available through the Institut Généalogique Drouin's own site.

It is images plus an index, not a reconstruction. You search a name, you get a page. What you do with the page is up to you. That distinction matters because the other great Quebec resource does the opposite.

Coverage runs from 1621 to the 1940s for the parish registers, with a privacy cut-off on the recent end. There is also a separate Drouin card index — the "Fonds Drouin" — of extracted marriages that is often faster than reading pages.

The New England parishes are the bridge. Roughly nine hundred thousand French Canadians moved south to the mill towns of Massachusetts, Rhode Island, New Hampshire and Maine between 1840 and 1930. Their baptisms and marriages happened in French-speaking Catholic parishes that Drouin also filmed — so a family can be followed across the border inside a single collection. Our church records guide covers how to approach parish archives that were not filmed.

PRDH: the family already put together

PRDH — the Program de recherche en démographie historique at the Université de Montréal — is a research project, not a document scanner. Historians linked every act in Quebec from 1621 to 1849 to the individual it belongs to, so searching a name gives you a person: their baptism, their marriage or marriages, their children, their burial, their parents, all cross-referenced.

It is subscription-based, sold in blocks of hits. You buy a number of record views rather than a monthly membership, which suits short bursts of research. Searching the index is free; opening a family file costs a hit.

Its coverage boundary is real. The full family reconstruction runs to 1849; beyond that the coverage thins and you go back to Drouin images and other indexes.

Use them together. PRDH tells you who a person was and who their parents were; Drouin shows you the page that proves it. Doing PRDH first and Drouin second usually costs far less time.

dit names: the trap that stops everyone

This is the one convention that turns a straightforward Quebec search into a brick wall.

**A dit name is an alias attached to a family surname.** Bourbeau dit Lacourse. Beaudry dit Lamarche. Migneault dit Labrie. The word dit simply means "called". The family name is the first; the alias is the second.

They came from somewhere real. Many started as soldiers' nicknames given in the Carignan-Salières regiment and other French units — Larose, Lajeunesse, Sansregret, Ladouceur. Others came from a place of origin in France, a farm, a trade, or a way of telling apart two branches with the same surname in the same village.

Either half can appear in any given record. The same man is baptised as Beaudry, married as Beaudry dit Lamarche, and buried as Lamarche. His children may split, with one branch keeping each name.

Migration usually picks a winner. When a family moved to New England, an English-speaking clerk wrote down whichever name he heard, and that became the family's name for good. This is why an American family named Rose may descend from a Quebec family named Duquet dit Larose.

Search both halves, always. Every Quebec index lets you search either. If a family disappears, the first thing to try is the alias. Our guides to French surnames and to surname spelling variations cover the wider pattern of how these names shifted.

And expect translation, not just spelling drift. Boisvert became Greenwood. Leblanc became White. Charbonneau became Coleman. Lévesque became Bishop. A translated surname is a dit name's more extreme cousin, and it is common in New England and Ontario.

The record sets at a glance

BAnQ — Bibliothèque et Archives nationales du Québec — is the free option people forget. Its digital portal carries parish registers, an enormous notarial collection and digitized newspapers, at no charge.

Fichier Origine answers the question everyone eventually asks: where in France did the founder come from? It publishes verified French birth or baptism records for immigrants to New France, parish by parish, free.

The censuses of New France are extraordinary. A nominal census was taken as early as 1666, listing every colonist by name, age and occupation. For the later years, our Canadian census guide covers the searching method.

Notarial records: the layer under the registers

New France used French civil law, which means notaries, which means paper. Almost every significant transaction was drawn up by a notary and preserved: marriage contracts, estate inventories after a death, land sales, apprenticeships, guardianship appointments.

Marriage contracts are the best of them. Signed days before the wedding, a contract names the parents, the witnesses on both sides and their relationships, and what each family contributed. When a parish register is damaged, the contract often survives to name the same people.

Estate inventories list the heirs. An inventaire après décès enumerates the widow, the children, and each child's guardian — a complete family group, made under oath, with ages.

They are indexed and largely free at BAnQ. The notarial index is searchable by name and by notary, and much of the collection is scanned.

Pedigree collapse: why your tree folds in on itself

Most French Canadians descend from a founding population of roughly 2,600 settlers, including about 800 filles du roi — young women whose passage the French Crown paid for between 1663 and 1673 to correct the colony's sex imbalance.

A small founding pool plus three centuries of Catholic endogamy has consequences. Go back ten generations and you should have 1,024 ancestral slots; a French-Canadian tree fills those slots with far fewer distinct people, because the same couples appear again and again. That is pedigree collapse, and it is not an error in your research.

It changes what DNA means. Two French Canadians who are documented sixth cousins may share far more DNA than sixth cousins should, because they are also eighth cousins twice, and fifth cousins once removed on another line. Shared-centimorgan predictions run consistently too close. Our guide to how much DNA cousins share explains the normal ranges — expect Quebec results to sit above them.

Watch for consanguinity dispensations in marriage records. When a couple were related within the prohibited degrees, the priest recorded a Church dispensation and often stated the exact relationship — "third to fourth degree of consanguinity". That is a documented relationship handed to you, and the relationship calculator will translate it into a modern cousin term.

FAQ

What is a dit name in French-Canadian genealogy?

A second surname carried alongside the family name, written as "Bourbeau dit Lacourse". Many began as soldiers' nicknames or place names in France. Either half may appear in any record, and after migration to New England one half usually became the family's permanent surname.

Is the Drouin collection free?

No. The Drouin collection of scanned Quebec parish registers is available through Ancestry or the Institut Généalogique Drouin by subscription. Free alternatives covering much of the same ground are BAnQ numérique, the provincial archive's own digital portal, and FamilySearch's Quebec parish register images.

What is PRDH and how is it different from Drouin?

PRDH is a Université de Montréal research project that links every Quebec parish act from 1621 to 1849 into reconstructed families, so a search returns a person with parents, spouses and children. Drouin gives you scanned register pages. Use PRDH to identify, Drouin to verify.

How far back can French-Canadian ancestry be traced?

Usually to the immigrant founder in the 1600s, and often to their baptism in France. Quebec's Catholic registers begin in 1621 and were kept in duplicate, so nine or ten documented generations is normal rather than exceptional for a French-Canadian line.

Why do the same ancestors keep appearing in my Quebec tree?

Because most French Canadians descend from about 2,600 founding settlers. With a small founding population and centuries of marriage within the community, the same couples fill many ancestral slots. It is called pedigree collapse, and it also inflates DNA match predictions.

Where can I search Quebec records for free?

BAnQ numérique carries free scans of parish registers, notarial records and newspapers. FamilySearch has Quebec parish register images and indexes free with an account. Fichier Origine publishes verified French origins of the founding immigrants at no charge.

Following the river back to France

Quebec is the rare place where the records outlast the questions. The parish registers run from 1621 in duplicate, the notaries preserved the contracts and the inventories, and two centuries of demographic research have already linked most of it into families. What you have to supply is the willingness to search a name twice — once as Beaudry and once as Lamarche — and the patience to read a marriage act properly, because it holds a whole generation. Expect the tree to fold back on itself, and expect the DNA to run hot. When the Tremblays and Gagnons pile up faster than you can label them, the free CousinChart relationship calculator will tell you exactly what each one is to you.