Mary Flagg 1690–1751
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
7 researchers on YourRoots have Mary Flagg in their family trees — each with their own records and documentation. Trace the migration path across 2 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 7 independent trees
Researchers connected through Mary Flagg 1690–1751
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and 6 more tree owners connected with Mary Flagg 1690–1751
Immediate Family
Biography
In 1690, Mary Flagg entered the world in Watertown, Middlesex, Massachusetts, United States, born to michael flagg and mary bigalow. Mary Flagg passed away in 1751 in Lexington, Middlesex, Massachusetts, United States.
Sources
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1Record American Genealogical-Biographical Index (AGBI)
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2Record Family Data Collection - Births
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3Record Family Data Collection - Individual Records
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4City Directory U.S., City Directories, 1822-1995
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5Record U.S., Sons of the American Revolution Membership Applications, 1889-1970
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6Record Netherlands, GenealogieOnline Trees Index
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7Birth Records Massachusetts, U.S., Compiled Birth, Marriage, and Death Records
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8Marriage Records Massachusetts Marriages
Life Timeline
Oldest Ancestor Line from Mary Flagg
This ancestor line traces from Watertown, Middlesex, Massachusetts (1648) to Watertown, Middlesex, Massachusetts (1690) across 2 generations.
Frequently Asked Questions
- Mary Flagg (1690–1751) was born in Watertown, Middlesex, Massachusetts, United States and died in Lexington, Middlesex, Massachusetts, United States. 7 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, 7 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 2 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
Mary Flagg's Ancestors
Pedigree chart — 3 generations on record