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Josiah FLAGG 1748–1799

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
B
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 Josiah FLAGG in their family trees — each with their own records and documentation. Trace the migration path across 7 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 09 Apr 1748 · Chester, Rockingham County, New Hampshire
Died 25 Apr 1799 · Chester, Rockingham County, New Hampshire, USA
Father Ebenezer Flagg Reverand
Mother Lucretia Keyes
Siblings Catherine Flagg, Ebenezer Flagg, John Flagg Doctor, Lucretia Flagg, Mary Flagg, Richard Flagg, Sarah Flagg, Thomas Flagg Sr

Researchers connected through Josiah FLAGG 1748–1799

and 1 more tree owner connected with Josiah FLAGG 1748–1799

Immediate Family

Spouse(s)
No spouse recorded
Children
No children recorded

Biography

The story of Josiah FLAGG began in 1748 in Chester, Rockingham County, New Hampshire. Josiah FLAGG passed away in 1799 in Chester, Rockingham County, New Hampshire, USA.

Sources

Life Timeline

1748
Birth of Josiah FLAGG in Chester, Rockingham County, New Hampshire
Birth
1799
Death of Josiah FLAGG in Chester, Rockingham County, New Hampshire, USA
Death

Oldest Ancestor Line from Josiah FLAGG

This ancestor line traces from Ipswich, Suffolk, , England (1551) to Chester, Rockingham County, New Hampshire, USA (1748) across 7 generations.

Direct Lineage
generations

Frequently Asked Questions

Josiah FLAGG (1748–1799) was born in Chester, Rockingham County, New Hampshire and died in Chester, Rockingham County, New Hampshire, 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 Josiah 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 7 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.

Josiah FLAGG's Ancestors

Pedigree chart — 3 generations on record

Self
Josiah FLAGG PTP
1748–1799
Chester, Rockingham County, New Hampshire
Parents
Unknown
Unknown
Grandparents
Unknown
Unknown
Unknown
Unknown

Josiah FLAGG's Descendants

1.
JF
Josiah FLAGG PTP 1748–1799