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John Duncan (Dunkin) Jr 1678–1739

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
C
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 John Jr in their family trees — each with their own records and documentation. Trace the migration path across 5 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 28 Oct 1678 · Billerica, Middlesex, Massachusetts, United States
Died 15 Dec 1739 · Worcester, Worcester, Massachusetts, United States
Father John Duncan Sr
Mother Johanna Jefts (1656–1692)
Children Daniel Duncan

Researchers connected through John Jr 1678–1739

and 1 more tree owner connected with John Jr 1678–1739

Immediate Family

Spouse(s)
No spouse recorded

Biography

The story of John Duncan (Dunkin) Jr began in 1678 in Billerica, Middlesex, Massachusetts, United States. John Duncan (Dunkin) Jr had children including daniel duncan. John Duncan (Dunkin) Jr passed away in 1739 in Worcester, Worcester, Massachusetts, United States.

Sources

Life Timeline

1678
Birth of John Duncan (Dunkin) Jr in Billerica, Middlesex, Massachusetts, United States
Birth
1739
Death of John Duncan (Dunkin) Jr in Worcester, Worcester, Massachusetts, United States
Death

Oldest Ancestor Line from John Jr

This ancestor line traces from Exeter, Devon, England (1555) to Billerica, Middlesex, Massachusetts, United States (1678) across 5 generations.

Direct Lineage
generations

Frequently Asked Questions

John Jr (1678–1739) was born in Billerica, Middlesex, Massachusetts, United States and died in Worcester, Worcester, Massachusetts, 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 John 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 5 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.

John Jr's Ancestors

Pedigree chart — 3 generations on record

Self
John Duncan (Dunkin) Jr PTP
1678–1739
Billerica, Middlesex, Massachusetts, United States
Parents
Unknown
Johanna (Joanna) Jefts PTP
1656–1692
Billerica, Middlesex, Massachusetts, United States
Grandparents
Unknown
Unknown
Unknown
Hannah Births PTP
1628–1662
Woburn, Middlesex, Massachusetts, United States

John Jr's Descendants

1.
JJ
John Duncan (Dunkin) Jr PTP 1678–1739