Gershom Flagg 1641–1690
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
Compare a Public Tree Person with your own tree using Compare Tree.
- A 3 criteria (Strong)
- B 2 criteria (Medium)
- C 1 criteria (Basic)
- Record available
- Descendant's record available
- Star tree owner
16 researchers on YourRoots have Gershom Flagg in their family trees — each with their own records and documentation. Trace the migration path across 17 generations. If this ancestor is in your tree too, you can compare what you've found and fill in the gaps together.
Last updated: September 17, 2026 · Reliability: B — verified across 16 independent trees
Researchers connected through Gershom Flagg 1641–1690
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and 14 more tree owners connected with Gershom Flagg 1641–1690
Immediate Family
Biography
In 1641, Gershom Flagg entered the world in Watertown, Middlesex, Massachusetts, United States, born to thomas flagg and marable mary gershom underwood. Gershom Flagg passed away in 1690 in Lee, Strafford, New Hampshire, United States.
Sources
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1Record U.S., Sons of the American Revolution Membership Applications, 1889-1970
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2Record Netherlands, GenealogieOnline Trees Index
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3Record North America, Family Histories
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4Record "FamilySearch Family Tree," database, <i>FamilySearch</i>
Life Timeline
Oldest Ancestor Line from Gershom Flagg
This ancestor line traces from Dereham, Norfolk, England (1140) to Watertown, Middlesex, Massachusetts Bay Colony, British Colonial America (1641) across 17 generations.
Frequently Asked Questions
- Gershom Flagg (1641–1690) was born in Watertown, Middlesex, Massachusetts, United States and died in Lee, Strafford, New Hampshire, United States. 16 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, 16 researchers on YourRoots have Gershom 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 17 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
Gershom Flagg's Ancestors
Pedigree chart — 3 generations on record