Who was Mary Johnston?

Mary Johnston (1730–1813) was born in Newcastle, Delaware, USA and died in Palmer, Hampden, Massachusetts, 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 1 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 Johnston 1730–1813

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 Mary Johnston 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: July 22, 2026 · Reliability: C — verified across 2 independent trees

Born 30 DEC 1730 · Newcastle, Delaware, USA

Died 31 OCT 1813 · Palmer, Hampden, Massachusetts, USA

Spouse Peter King

Children Jacob King

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Researchers connected through Mary Johnston 1730–1813

and 1 more tree owner connected with Mary Johnston 1730–1813

Immediate Family

Parents

Spouse(s)

Peter King

Children

Jacob King

Biography

In 1730, Mary Johnston entered the world in Newcastle, Delaware, USA. Mary Johnston married peter king, and had children including jacob king. Mary Johnston passed away in 1813 in Palmer, Hampden, Massachusetts, USA.

Sources

Life Timeline

1730

Birth of Mary Johnston in Newcastle, Delaware, USA

Birth

1813

Death of Mary Johnston in Palmer, Hampden, Massachusetts, USA

Death

Oldest Ancestor Line from Mary Johnston

Direct Lineage

generations

Frequently Asked Questions

: Mary Johnston (1730–1813) was born in Newcastle, Delaware, USA and died in Palmer, Hampden, Massachusetts, 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 (C) 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 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

Johnston US Census Records

Browse all census records

Mary Johnston's Ancestors

Pedigree chart — 3 generations on record

Self

Mary Johnston PTP

1730–1813

Newcastle, Delaware, USA