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

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William ONeill Finley 1717–1800

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.

C Reliability

Reliability Score: C

Basic — 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 William Finley in their family trees — each with their own records and documentation. Trace the migration path across 2 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: C — verified across 2 independent trees

Born 10 Apr 1717 · Belfast, Antrim, Ireland

Died 16 Sep 1800 · Chester, Lancaster, Pennsylvania, United States

Father John Gray Finley

Mother Mary Ann Barclay

Children Samuel Findley

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Researchers connected through William Finley 1717–1800

and 1 more tree owner connected with William Finley 1717–1800

Immediate Family

Parents

John Gray Finley

Mary Ann Barclay

Spouse(s)

No spouse recorded

Children

Samuel Findley

Biography

The story of William ONeill Finley began in 1717 in Belfast, Antrim, Ireland. William ONeill Finley had children including samuel findley. William ONeill Finley passed away in 1800 in Chester, Lancaster, Pennsylvania, United States.

Sources

Life Timeline

1717

Birth of William ONeill Finley in Belfast, Antrim, Ireland

Birth

1800

Death of William ONeill Finley in Chester, Lancaster, Pennsylvania, United States

Death

Oldest Ancestor Line from William Finley

This ancestor line traces from Mullaghbrack, Couny Armagh, Ireland (1683) to Belfast, Antrim, Ireland (1717) across 2 generations.

Direct Lineage

generations

Frequently Asked Questions

: William Finley (1717–1800) was born in Belfast, Antrim, Ireland and died in Chester, Lancaster, Pennsylvania, United States. 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 (C) based on cross-tree validation.
: Right now, 2 researchers on YourRoots have William 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 2 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.