Canadian Archival Records Search
As of December 15, 2025, Canada passed Bill C-3, amending the Citizenship Act to abolish the strict "first-generation limit" for citizenship by descent, thereby fundamentally changing how citizenship can be passed down through generations.
In doing so, Immigration, Refugees and Citizenship Canada (IRCC) require official, certified documents for confirming Canadian ancestry. Such records include:
- Birth or Baptismal Certificates
- Marriage Certificates
- Supporting Evidence, including Death certificates, census date, and property records
- Proof of Parent’s Citizenship (ie. Canadian passport, citizenship certificate, or birth certificate)
In Ontario, it was not mandatory to have birth, marriage, death, or baptismal records until 1869. Before then, such records, if created were held by the individual church or parishes. Oxford County Archives only maintains a few vital statistics records prior to 1869, though staff are happy to assist in tracking down records needed as part of the application process. We do maintain other records, such as land abstracts, land deeds, poll books, voter lists, and school information, that may be considered as supporting evidence for the application process. Please contact Archives Staff for further information on research services and fees: archives@oxfordcounty.ca
In terms of birth certificates, baptismal records, and marriage certificates, the following Archival institutions may have records in their holdings to assist with your research:
- Archives of Ontario (birth, marriage, and death records): https://www.archives.gov.on.ca/topic/birth-marriage-and-death/
- Anglican Church of Ontario Archives: Services and Fees | Archives | Anglican Diocese of Ontario
- The Diocese of Huron Archives: Huron Archives | Resources | The Incorporated Synod of the Diocese of Huron
- United Church of Canada Archives: United Church of Canada Archives
- The Presbyterian Church of Canada Archives: The Presbyterian Church in Canada Archives
- The Canadian Baptist Archives (McMaster Divinity College): Canadian Baptist Archives | McMaster Divinity College
- Mennonite Archives of Ontario (University of Waterloo): Birth, Baptism, Marriage and Death Records | Mennonite Archives of Ontario | University of Waterloo
- Catholic Archdiocese of Toronto Archives: Archdiocese of Toronto - Archives
- Catholic Diocese of Hamilton (Bishop Farrell Library and Archives): Archdiocese of Toronto - Archives
- Catholic Diocese of London Archives (covers Oxford County): The Archives - Diocese of London - London, Ontario
- The Canadian Quaker Library and Archives: Introduction | Archives
- Library and Archives Canada: Genealogy, family history and census research and help - Canada.ca
- Census Records
- Birth, marriage, and death records (mostly held at Provincial level)
- Immigration
- Citizenship and naturalization
- Military
- Land records