Who was Mary Clemson?

Mary Clemson (1763–1817) was born in Salisbury, Lancaster, Pennsylvania, USA and died in Pittsburg, Allegheny, Pennsylvania, USA. 2 researchers on YourRoots have this ancestor in their family trees.

How many people are researching Mary?

Right now, 2 researchers on YourRoots have Mary in their trees. The ancestor migration map traces 11 generations of this lineage.

What records do they have for Mary?

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.

Mary Clemson 1763–1817

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 Mary Clemson in their family trees — each with their own records and documentation. Trace the migration path across 11 generations. If this ancestor is in your tree too, you can compare what you've found and fill in the gaps together.

Last updated: July 22, 2026 · Reliability: B — verified across 2 independent trees

Born 3 MAR 1763 · Salisbury, Lancaster, Pennsylvania, USA

Died 17 JAN 1817 · Pittsburg, Allegheny, Pennsylvania, USA

Father Thomas Clemson

Mother Elizabeth Strode

Spouse Joseph Moore (1759–1832)

Children Joseph Dickinson Moore

Compare Tree

Researchers connected through Mary Clemson 1763–1817

and 1 more tree owner connected with Mary Clemson 1763–1817

Immediate Family

Parents

Thomas Clemson

Elizabeth Strode

Spouse(s)

Joseph Moore

Children

Joseph Dickinson Moore

Biography

The story of Mary Clemson began in 1763 in Salisbury, Lancaster, Pennsylvania, USA. Mary Clemson married joseph moore, and had children including joseph dickinson moore. Mary Clemson passed away in 1817 in Pittsburg, Allegheny, Pennsylvania, USA.

Sources

Life Timeline

1763

Birth of Mary Clemson in Salisbury, Lancaster, Pennsylvania, USA

Birth

1817

Death of Mary Clemson in Pittsburg, Allegheny, Pennsylvania, USA

Death

Oldest Ancestor Line from Mary Clemson

This ancestor line traces from Bristol, Gloucestershire, England (1440) to Salisbury, Lancaster, Pennsylvania, USA (1763) across 11 generations.

Direct Lineage

generations

Frequently Asked Questions

: Mary Clemson (1763–1817) was born in Salisbury, Lancaster, Pennsylvania, USA and died in Pittsburg, Allegheny, Pennsylvania, 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 Mary 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 11 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.