Who was William Williams?

William Williams (1791–1866) was born in Mynyddislwyn, Monmouthshire, Wales and died in Rudry, Glamorgan, Wales. 2 researchers on YourRoots have this ancestor in their family trees.

How many people are researching William?

Right now, 2 researchers on YourRoots have William in their trees. The ancestor migration map traces 1 generations of this lineage.

What records do they have for William?

Records vary by researcher and can include census, vital, parish, cemetery, and family sources.

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William Williams 1791–1866

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 2 independent trees

Birth year and location consistent across 2 trees

Death year and location consistent across 2 trees

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B Reliability

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

2 researchers on YourRoots have William Williams in their family trees — each with their own records and documentation. Trace the migration path across 1 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 2 independent trees

Born 18 Dec 1791 · Mynyddislwyn, Monmouthshire, Wales

Died 20 Nov 1866 · Rudry, Glamorgan, Wales

Father David Williams

Mother Margaret Williams

Spouse Martha Williams

Children Cecilia Williams, Hanah Williams, Martha Williams, William Williams

Siblings Anne Williams, David Williams, John Williams, Margaret Williams, Mary Williams, Sarah Williams

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Researchers connected through William Williams 1791–1866

and 1 more tree owner connected with William Williams 1791–1866

Immediate Family

Parents

Spouse(s)

Children

Biography

In 1791, William Williams entered the world in Mynyddislwyn, Monmouthshire, Wales, born to david williams and margaret williams. William Williams married martha williams, and had children including cecilia williams, hanah williams, martha williams, william williams. William Williams passed away in 1866 in Rudry, Glamorgan, Wales.

Sources

Life Timeline

1791

Birth of William Williams in Mynyddislwyn, Monmouthshire, Wales

Birth

1818

William Williams was married in Mynyddislwyn, Monmouthshire, Wales

Marriage

1866

Death of William Williams in Rudry, Glamorgan, Wales

Death

Oldest Ancestor Line from William Williams

Direct Lineage

generations

Frequently Asked Questions

: William Williams (1791–1866) was born in Mynyddislwyn, Monmouthshire, Wales and died in Rudry, Glamorgan, Wales. 2 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, 2 researchers on YourRoots have William 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 1 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.