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Guillaume Lalonde III 1757–1828

Public Tree Person

What is a Public Tree Person?

A Public Tree Person is an ancestor documented independently by multiple YourRoots tree owners. When several researchers' family histories converge on the same person, we publish a shared page that combines what they've documented.

Why this is a Public Tree Person

Full name consistent across 2 independent trees
Birth year and location consistent across 2 trees
Death year and location consistent across 2 trees

Compare a Public Tree Person with your own tree using Compare Tree.

B Reliability
B
Reliability Score: B
Medium — based on the source tree
Grade scale
  • A 3 criteria (Strong)
  • B 2 criteria (Medium)
  • C 1 criteria (Basic)
Verification checklist
  • Record available
  • Descendant's record available
  • Star tree owner

2 researchers on YourRoots have Guillaume III in their family trees — each with their own records and documentation. Trace the migration path across 8 generations. If this ancestor is in your tree too, you can compare what you've found and fill in the gaps together.

Last updated: August 25, 2026 · Reliability: B — verified across 2 independent trees

Born 4 Oct 1757 · Les Cèdres, Vaudreuil-Soulanges, QC, Nouvelle-France
Died 20 May 1828 · Les Cedres, Soulanges, Quebec, Canada
Father Guillaume Lalonde
Mother Marie Charlotte Bray
Spouse Marie Catherine Provost
Children Paul Joseph Louis Lalonde

Researchers connected through Guillaume III 1757–1828

and 1 more tree owner connected with Guillaume III 1757–1828

Biography

The story of Guillaume Lalonde III began in 1757 in Les Cèdres, Vaudreuil-Soulanges, QC, Nouvelle-France. Guillaume Lalonde III married marie catherine provost, and had children including paul joseph louis lalonde. Guillaume Lalonde III passed away in 1828 in Les Cedres, Soulanges, Quebec, Canada.

Sources

Life Timeline

1757
Birth of Guillaume Lalonde III in Les Cèdres, Vaudreuil-Soulanges, QC, Nouvelle-France
Birth
1828
Death of Guillaume Lalonde III in Les Cedres, Soulanges, Quebec, Canada
Death

Oldest Ancestor Line from Guillaume III

This ancestor line traces from Shropshire, England (1475) to Sainte-Anne-de-Bellevue, Quebec, Canada (1730) across 8 generations.

Direct Lineage
generations

Frequently Asked Questions

Guillaume III (1757–1828) was born in Les Cèdres, Vaudreuil-Soulanges, QC, Nouvelle-France and died in Les Cedres, Soulanges, Quebec, Canada. 2 researchers on YourRoots have this ancestor in their family trees, each with their own records. This page combines what they've independently documented and assigns a Reliability Score (B) based on cross-tree validation.
Right now, 2 researchers on YourRoots have Guillaume in their trees. They're working independently, so connecting with them is a good way to cross-check your records and find things you might have missed. You can also explore the ancestor migration map that traces 8 generations of this lineage geographically.
It varies by researcher — some have census records, others have marriage certificates, parish registers, or family Bible entries. Scroll up to see exactly what each person has cited.
Use the "Compare Tree" button on any researcher's profile above. You can compare your tree side by side with theirs, see where your records overlap or differ, and collaborate to fill gaps.

Guillaume III's Ancestors

Pedigree chart — 3 generations on record

Self
Guillaume Lalonde III PTP
1757–1828
Les Cèdres, Vaudreuil-Soulanges, QC, Nouvelle-France
Parents
Unknown
Unknown
Grandparents
Unknown
Unknown
Unknown
Unknown

Guillaume III's Descendants

1.
GI
Guillaume Lalonde III PTP 1757–1828