Who was William Clark?

William Clark (1838–1917) was born in Maine, United States and died in Portland, Cumberland, Maine, United States. 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.

How do I compare family trees?

Use Compare Tree on an available researcher profile to compare overlapping people and records.

William H Clark 1838–1917

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

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

C Reliability

Reliability Score: C

Basic — 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 Clark 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: C — verified across 2 independent trees

Born 29 Oct 1838 · Maine, United States

Died 4 Jul 1917 · Portland, Cumberland, Maine, United States

Records

1880 United States Federal Census 1900 United States Federal Census 1910 United States Federal Census

Compare Tree

Researchers connected through William Clark 1838–1917

and 1 more tree owner connected with William Clark 1838–1917

Immediate Family

Parents

Spouse(s)

No spouse recorded

Children

No children recorded

Biography

William H Clark was born in 1838 in Maine, United States. William H Clark passed away in 1917 in Portland, Cumberland, Maine, United States.

Sources

1

Census 1880 United States Federal Census
2

Census 1900 United States Federal Census
3

Census 1910 United States Federal Census

Life Timeline

1838

Birth of William H Clark in Maine, United States

Birth

1917

Death of William H Clark in Portland, Cumberland, Maine, United States

Death

Oldest Ancestor Line from William Clark

Direct Lineage

generations

Frequently Asked Questions

: William Clark (1838–1917) was born in Maine, United States and died in Portland, Cumberland, Maine, United States. 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 (C) 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.

Related Records

William Clark in the US Census

View census records

William Clark's Ancestors

Pedigree chart — 3 generations on record

Self

William H Clark PTP

1838–1917

Maine, United States