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Cicely Sissilla Thayer 1600–1673

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 7 independent trees
Birth year and location consistent across 7 trees
Death year and location consistent across 7 trees

Compare a Public Tree Person with your own tree using Compare Tree.

A Reliability
A
Reliability Score: A
Strong — 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

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

and 6 more tree owners connected with Cicely Thayer 1600–1673

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

  1. 1
    Record Geneanet Community Trees Index

  2. 2
    Burial Records Global, Find a Grave® Index for Burials at Sea and other Select Burial Locations, 1300s-Current

  3. 3
    Immigration U.S. and Canada, Passenger and Immigration Lists Index, 1500s-1900s

  4. 4
    Marriage Records U.S. and International Marriage Records, 1560-1900

  5. 5
    Burial Records U.S., Find a Grave® Index, 1600s-Current

  6. 6
    Marriage Records U.S., New England Marriages Prior to 1700

  7. 7
    Record Netherlands, GenealogieOnline Trees Index

  8. 8
    Record North America, Family Histories

  9. 9
    Marriage Records England, Select Marriages

  10. 10
    Vital Records Massachusetts, Town and Vital Records

  11. 11
    Record New England, the Great Migration and the Great Migration Begins

  12. 12
    Record The New England Historical & Genealogical Register

  13. 13
    Birth Records Massachusetts, Compiled Birth, Marriage, and Death Records

  14. 14
    Marriage Records Gloucestershire, England, Church of England Baptisms, Marriages and Burials

  15. 15
    Record A Genealogical History of the Clark and Worth Families : and Other Puritan Settlers in the Massachusetts Bay Colony

  16. 16
    Record Ancestry of Addie Clark Harding : daughter of Abner Clark Harding, Jr., and Maud McCain.

  17. 17
    Record The ancestors, kin and descendants of John Warden and Narcissa (Davis) Warden, his wife

  18. 18
    Record Web: Netherlands, GenealogieOnline Trees Index, 1000-Current

Life Timeline

1600
Birth of Cicely Sissilla Thayer in Thornbury, Gloucestershire, England
Birth
1673
Death of Cicely Sissilla Thayer in Haverhill, Essex County, Massachusetts, United States of America
Death

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.

Direct Lineage
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

Self
Cicely Sissilla Thayer PTP
1600–1673
Thornbury, Gloucestershire, England
Parents
Unknown
Unknown
Grandparents
Unknown
Unknown
Unknown
Unknown

Cicely Thayer's Descendants

1.
CT
Cicely Sissilla Thayer PTP 1600–1673