Cicely Sissilla Thayer 1600–1673
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
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- 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 Cicely Thayer in their family trees — each with their own records and documentation. Trace the migration path across 15 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: A — verified across 7 independent trees, with linked records
Researchers connected through Cicely Thayer 1600–1673
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and 6 more tree owners connected with Cicely Thayer 1600–1673
Immediate Family
Biography
Cicely Sissilla Thayer was born in 1600 in Thornbury, Gloucestershire, England, the child of john johanes edward thayer sir baron and joan lawrence lady baroness. Cicely Sissilla Thayer married james davis i, and had children including ephraim davis, hannah davis, james davis, joanna davis, john davis, judith davis, samuel davis, sarah davis. Cicely Sissilla Thayer passed away in 1673 in North Andover, Essex County, Massachusetts, United States of America.
Sources
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1Record Geneanet Community Trees Index
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2Burial Records Global, Find a Grave® Index for Burials at Sea and other Select Burial Locations, 1300s-Current
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3Immigration U.S. and Canada, Passenger and Immigration Lists Index, 1500s-1900s
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4Marriage Records U.S. and International Marriage Records, 1560-1900
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5Burial Records U.S., Find a Grave® Index, 1600s-Current
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6Marriage Records U.S., New England Marriages Prior to 1700
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7Record Netherlands, GenealogieOnline Trees Index
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8Record North America, Family Histories
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9Marriage Records England, Select Marriages
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10Vital Records Massachusetts, Town and Vital Records
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11Record New England, the Great Migration and the Great Migration Begins
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12Record The New England Historical & Genealogical Register
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13Birth Records Massachusetts, Compiled Birth, Marriage, and Death Records
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14Marriage Records Gloucestershire, England, Church of England Baptisms, Marriages and Burials
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15Record A Genealogical History of the Clark and Worth Families : and Other Puritan Settlers in the Massachusetts Bay Colony
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16Record Ancestry of Addie Clark Harding : daughter of Abner Clark Harding, Jr., and Maud McCain.
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17Record The ancestors, kin and descendants of John Warden and Narcissa (Davis) Warden, his wife
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18Record Web: Netherlands, GenealogieOnline Trees Index, 1000-Current
Life Timeline
Oldest Ancestor Line from Cicely Thayer
This ancestor line traces from Angoulême, Charente, Poitou-Charentes, France (1015) to Thornbury, Gloucestershire, England (1600) across 15 generations.
Frequently Asked Questions
- Cicely Thayer (1600–1673) was born in Thornbury, Gloucestershire, England and died in North Andover, Essex County, Massachusetts, United States of America. 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 (A) based on cross-tree validation.
- Right now, 7 researchers on YourRoots have Cicely 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 15 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.
Cicely Thayer's Ancestors
Pedigree chart — 3 generations on record