Oscar Decoste Genealogy: 17 obituaries, marriages, births, burials (1870-1948)

Oscar Decoste is documented in 17 historical records spanning 1870-1948 across 9 cities — including Saint-Andre-D'argenteuil, Glen-Nevis, Saint-Lazare, Alexandria, Montreal, Lachine, Saint-Andre, Rigaud, and Sainte-Therese. Sources include 1 birth, 4 censuses, and 12 marriage records. Discover your genealogy on MesAieux (YourFolks), one of the best platforms for ancestry research, focusing on Quebec and Canada. Trace your family tree and track the lives of individuals named Oscar Decoste through these records — start uncovering your ancestors and build your complete family tree with Oscar Decoste today.

Year	Type	Subject	Location	Source	Results
abt. 1870	Birth	Oscar Decoste	Undetermined location	Recensement du Canada, 1931	abt. 1870 Birth Oscar Decoste Undetermined location (Recensement du Canada, 1931)
1889	Marriage	Oscar Decoste & Olive Lacroix	Saint-Andre-D'argenteuil, Qc	Vital records	1889 Marriage Oscar Decoste & Olive Lacroix Saint-Andre-D'argenteuil, Qc (Vital records)
1900	Marriage	Oscar Decosse & Alexina Lalonde	Glen-Nevis, On	Vital records	1900 Marriage Oscar Decosse & Alexina Lalonde Glen-Nevis, On (Vital records)
1909	Marriage	Oscar Decosse & Rosina Poirier	Saint-Lazare, Qc	Vital records	1909 Marriage Oscar Decosse & Rosina Poirier Saint-Lazare, Qc (Vital records)
abt. 1913	Marriage	Oscar Decoste & Alexina Lalonde	Undetermined location	Vital records	abt. 1913 Marriage Oscar Decoste & Alexina Lalonde Undetermined location (Vital records)
1915	Marriage	Oscar Decoste & Marie-Ange Leduc	Alexandria, On	Vital records	1915 Marriage Oscar Decoste & Marie-Ange Leduc Alexandria, On (Vital records)
1915	Marriage	Oscar Decoste & Olina Bergeron	Saint-Andre-D'argenteuil, Qc	Vital records	1915 Marriage Oscar Decoste & Olina Bergeron Saint-Andre-D'argenteuil, Qc (Vital records)
abt. 1920	Marriage	Oscar Decoste & Georgiana Lalonde	Undetermined location	Vital records	abt. 1920 Marriage Oscar Decoste & Georgiana Lalonde Undetermined location (Vital records)
abt. 1929	Marriage	Oscar Decoste & Maria Leduc	Undetermined location	Vital records	abt. 1929 Marriage Oscar Decoste & Maria Leduc Undetermined location (Vital records)
1931	Census	Oscar Decoste	Montreal (Cite) – Rosemont Ward, QC	Recensement du Canada, 1931	1931 Census Oscar Decoste Montreal (Cite) – Rosemont Ward, QC (Recensement du Canada, 1931)
1931	Census	Oscar Decoste & Marie-Ange Decoste	Lachine (Cite), QC	Recensement du Canada, 1931	1931 Census Oscar Decoste & Marie-Ange Decoste Lachine (Cite), QC (Recensement du Canada, 1931)
1931	Census	Oscar Decoste & Olive Decoste	Saint-Andre (Paroisse), QC	Recensement du Canada, 1931	1931 Census Oscar Decoste & Olive Decoste Saint-Andre (Paroisse), QC (Recensement du Canada, 1931)
1931	Census	Oscar Decoste & Rosina Decoste	Rigaud (Paroisse), QC	Recensement du Canada, 1931	1931 Census Oscar Decoste & Rosina Decoste Rigaud (Paroisse), QC (Recensement du Canada, 1931)
abt. 1933	Marriage	Oscar Decoste & Marie-Ange Leduc	Undetermined location	Vital records	abt. 1933 Marriage Oscar Decoste & Marie-Ange Leduc Undetermined location (Vital records)
abt. 1942	Marriage	Oscar Decoste & M-Ange Leduc	Undetermined location	Vital records	abt. 1942 Marriage Oscar Decoste & M-Ange Leduc Undetermined location (Vital records)
1945	Marriage	Oscar Decoste & Yvette Turcotte	Sainte-Therese, Qc	Vital records	1945 Marriage Oscar Decoste & Yvette Turcotte Sainte-Therese, Qc (Vital records)
1948	Marriage	Oscar Decoste & Georgette Larocque	Saint-Andre-D'argenteuil, Qc	Vital records	1948 Marriage Oscar Decoste & Georgette Larocque Saint-Andre-D'argenteuil, Qc (Vital records)

What are the most common first names in Decoste family?

The most popular first names associated with the Decoste surname.

Joseph	Marie	Oscar	Robert
Therese	Andre	Denise	Louise
Louis	Albert	Armand	Charles
Pierre	Roger	Jacqueline	Yvonne
William	Marcel	Roland	Rene

The most popular first names associated with the Decoste surname.

Joseph	Marie
Oscar	Robert
Therese	Andre
Denise	Louise
Louis	Albert
Armand	Charles
Pierre	Roger
Jacqueline	Yvonne
William	Marcel
Roland	Rene

These percentages represent the proportion of all genealogy records with the Decoste who bear each given name, based on the 947 available.

Updated: 2025-05-20

Oscar Decoste: Genealogy, Obituaries, Marriages, Births

What are the most common first names in Decoste family?