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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 17 independent trees
Birth year and location consistent across 17 trees
Death year and location consistent across 17 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

17 researchers on YourRoots have Cicely Thayer in their family trees — each with their own records and documentation. Trace the migration path across 10 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 17 independent trees, with linked records

Born 1 May 1600 · Thornbury, Gloucester, MA
Died 28 May 1673 · Haverhill, Essex, Massachusetts, United States
Father (1564–1601)
Mother
Spouse
Children , , , , , , , , ,
Siblings , , , , , , , , ,
Records
England, Select Marriages, 1538-1973 Family Data Collection - Individual … Geneanet Community Trees Index Global, Find a Grave® Index … U.S. and Canada, Passenger and … U.S. and International Marriage Records, … U.S., Find a Grave® Index, … U.S., New England Marriages Prior … Netherlands, GenealogieOnline Trees Index North America, Family Histories Massachusetts, Town and Vital Records New England, the Great Migration … The New England Historical & … Massachusetts, Compiled Birth, Marriage, and … Gloucestershire, England, Church of England … A Genealogical History of the … Ancestry of Addie Clark Harding … The ancestors, kin and descendants …

Researchers connected through Cicely Thayer 1600–1673

and 16 more tree owners connected with Cicely Thayer 1600–1673

Immediate Family

Parents
Spouse(s)
Children

Biography

Cicely Sissilla Thayer was born in 1600 in Thornbury, Gloucester, MA, the child of john thayer and joan lawrence. Cicely Sissilla Thayer married elizabeth eaton, james davis, and had children including abigail davis, barnabas davis, edith davis, ephraim davis, hannah davis, james nathaniel davis, patience davis, reade davis, samuel davis, sarah davis. Cicely Sissilla Thayer passed away in 1673 in Haverhill, Essex, Massachusetts, United States.

Sources

  1. 1
    Marriage Records England, Select Marriages, 1538-1973

  2. 2
    Record Family Data Collection - Individual Records

  3. 3
    Record Geneanet Community Trees Index

  4. 4
    Burial Records Global, Find a Grave® Index for Burials at Sea and other Select Burial Locations, 1300s-Current

  5. 5
    Immigration U.S. and Canada, Passenger and Immigration Lists Index, 1500s-1900s

  6. 6
    Marriage Records U.S. and International Marriage Records, 1560-1900

  7. 7
    Burial Records U.S., Find a Grave® Index, 1600s-Current

  8. 8
    Marriage Records U.S., New England Marriages Prior to 1700

  9. 9
    Record Netherlands, GenealogieOnline Trees Index

  10. 10
    Record North America, Family Histories

  11. 11
    Vital Records Massachusetts, Town and Vital Records

  12. 12
    Record New England, the Great Migration and the Great Migration Begins

  13. 13
    Record The New England Historical & Genealogical Register

  14. 14
    Birth Records Massachusetts, Compiled Birth, Marriage, and Death Records

  15. 15
    Marriage Records Gloucestershire, England, Church of England Baptisms, Marriages and Burials

  16. 16
    Record A Genealogical History of the Clark and Worth Families : and Other Puritan Settlers in the Massachusetts Bay Colony

  17. 17
    Record Ancestry of Addie Clark Harding : daughter of Abner Clark Harding, Jr., and Maud McCain.

  18. 18
    Record The ancestors, kin and descendants of John Warden and Narcissa (Davis) Warden, his wife

Life Timeline

1590
Birth of Cicely Sissilla Thayer in Thornbury, Gloucestershire, England
Birth
1600
Birth of Cicely Sissilla Thayer in Thornbury, Gloucestershire, England
Birth
1600
Birth of Cicely Sissilla Thayer in Thornbury, Gloucester, MA
Birth
1673
Death of Cicely Sissilla Thayer in Haverhill, Essex, Massachusetts, United States
Death

Oldest Ancestor Line from Cicely Thayer

This ancestor line traces from Stowe Castle, Cornwall, England (n/a) to Thornbury, Gloucestershire, England (1600) across 10 generations.

Direct Lineage
generations

Frequently Asked Questions

Cicely Thayer (1600–1673) was born in Thornbury, Gloucester, MA and died in Haverhill, Essex, Massachusetts, United States. 17 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, 17 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 10 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

Cicely Thayer's Ancestors

Pedigree chart — 3 generations on record

Self
Cicely Sissilla Thayer PTP
1600–1673
Thornbury, Gloucester, MA
Parents
PTP
1564–1601
Thornbury, Gloucestershire, , England
Unknown
Grandparents
Unknown
Unknown
Unknown
Unknown

Cicely Thayer's Descendants

1.
CT
Cicely Sissilla Thayer PTP 1600–1673
  1. 1. PTP 1623–1714
  2. 2. PTP 1636–1694