Who was Eileen O'Sullivan?

Eileen O'Sullivan (1911–1999) was born in Kerry, Ireland and died in Rockland County, New York, USA. 2 researchers on YourRoots have this ancestor in their family trees.

How many people are researching Eileen?

Right now, 2 researchers on YourRoots have Eileen in their trees. The ancestor migration map traces 1 generations of this lineage.

What records do they have for Eileen?

Records vary by researcher and can include census, vital, parish, cemetery, and family sources.

How do I compare family trees?

Use Compare Tree on an available researcher profile to compare overlapping people and records.

Eileen O'Sullivan 1911–1999

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

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 Eileen O'Sullivan in their family trees — each with their own records and documentation. Trace the migration path across 1 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 19 Aug 1911 · Kerry, Ireland

Died 12 Sep 1999 · Rockland County, New York, USA

Spouse John Brendan O Donoghue

Compare Tree

Researchers connected through Eileen O'Sullivan 1911–1999

and 1 more tree owner connected with Eileen O'Sullivan 1911–1999

Immediate Family

Parents

Spouse(s)

John Brendan O Donoghue

Children

No children recorded

Biography

The story of Eileen O'Sullivan began in 1911 in Kerry, Ireland. Eileen O'Sullivan married john brendan o donoghue. Eileen O'Sullivan passed away in 1999 in Rockland County, New York, USA.

Sources

Life Timeline

1911

Birth of Eileen O'Sullivan in Kerry, Ireland

Birth

1999

Death of Eileen O'Sullivan in Rockland County, New York, USA

Death

Oldest Ancestor Line from Eileen O'Sullivan

Direct Lineage

generations

Frequently Asked Questions

: Eileen O'Sullivan (1911–1999) was born in Kerry, Ireland and died in Rockland County, New York, USA. 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 Eileen 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 1 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.

Related Records

Eileen O'Sullivan's Ancestors

Pedigree chart — 3 generations on record

Self

Eileen O'Sullivan PTP

1911–1999

Kerry, Ireland