O'Sullivan Family Tree

Build a family tree with Ancestry.ca - explore more than 455 census records to help bring your O'Sullivan family tree to life.

Watch your family tree come to life.
Create and preserve your O'Sullivan family tree online, with an individual "Person Page" for each member in your tree including a timeline and places for photos, historical records and more. You'll see hints () automatically show up in your own family tree as you build it and discover your genealogy. You can collaborate with other members who are also researching O'Sullivan family history from the world's largest genealogy community.

Start your Tree

O'SULLIVAN FAMILY TREE INFORMATION FROM THE
1911 Canadian Census Records
Ancestry.ca has more than 200 O'Sullivan surname census records, showing that the average O'Sullivan household size in Canada was between 5 and 6 members. The average age of O'Sullivan children in 1911 was 17, with a paternal average age of 51 and a maternal average age of 47. Common first names for O'Sullivan household fathers in 1911 included John, Daniel, and Timothy and common first names for mothers included Ellen, Mary, and Jane. In 1911, approximately 21 individuals were recorded in the district of Halifax, 15 were recorded in the district of Northumberland East and 13 were recorded in the district of Toronto East, among others. Common places of birth for O'Sullivan parents were noted as Ontario, "Ireland", and Quebec. Some common heritage designations for the O'Sullivan surname were listed as Irish, English, and French.

O'SULLIVAN FAMILY TREE INFORMATION FROM THE
1901 Canadian Census Records
Ancestry.ca has more than 200 O'Sullivan surname census records, showing that the average O'Sullivan household size in Canada was between 5 and 6 members. The average age of O'Sullivan children in 1901 was 17, with a paternal average age of 49 and a maternal average age of 47. Some records show that occupations for O'Sullivan household members in 1901 were entered as Farmer, "assayer", and Blacksmith, among others. Common first names for O'Sullivan household fathers in 1901 included John, Daniel, and Timothy and common first names for mothers included Mary, Bridget, and Ann. In 1901, approximately 36 individuals were recorded in the district of Qu├ębec, 28 were recorded in the district of Northumberland and 22 were recorded in the district of Hastings, among others. Common places of birth for O'Sullivan parents were noted as Ontario, "Ireland", and "Qc". Some common heritage designations for the O'Sullivan surname were listed as Irish, English, and French.

Free Trial

O'Sullivan Family Collections


More Resources from Ancestry.ca

The Ancestry World Tree contains nearly 400 million names in family trees submitted by our users, and is the largest of its kind on the Internet. It was created to bring people like you and your family together. Your family tree may contain dates and places of life events, source information, attached records from Ancestry databases, and rich content featuring photos and stories. Learn more at the Learning Centre.

Free Online Family Tree Software
  • Visit our other sites:

© 2006-2019 Ancestry | Terms and Conditions, Website Privacy Statement, and Assignment New | Operated by Ancestry Ireland Unlimited Company