Mary Dennis (1649–1698) was born in Portsmouth, Newport, Rhode Island, United States and died in Long Island City, Queens, New York, United States. 2 researchers on YourRoots have this ancestor in their family trees.

How many people are researching Mary?

Right now, 2 researchers on YourRoots have Mary in their trees. The ancestor migration map traces 8 generations of this lineage.

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

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Mary Dennis 1649–1698

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.

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 Mary Dennis in their family trees — each with their own records and documentation. Trace the migration path across 8 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 19 Sep 1649 · Portsmouth, Newport, Rhode Island, United States

Died 22 Jul 1698 · Long Island City, Queens, New York, United States

Father Robert Dennis

Mother Mary Island

Siblings Charles Dennis, Elizabeth Dennis, George Dennis, Hannah Dennis, John Dennis, Jonathan Dennis, Joseph Dennis, Robert Dennis, Samuel Dennis, Samuel Dennis Judge, Thomas Dennis

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Researchers connected through Mary Dennis 1649–1698

and 1 more tree owner connected with Mary Dennis 1649–1698

Immediate Family

Parents

Robert Dennis

Mary Island

Spouse(s)

No spouse recorded

Children

No children recorded

Biography

In 1649, Mary Dennis entered the world in Portsmouth, Newport, Rhode Island, United States, born to robert dennis and mary island. Mary Dennis passed away in 1698 in Long Island City, Queens, New York, United States.

Sources

Life Timeline

1649

Birth of Mary Dennis in Portsmouth, Newport, Rhode Island, United States

Birth

1698

Death of Mary Dennis in Long Island City, Queens, New York, United States

Death

Oldest Ancestor Line from Mary Dennis

This ancestor line traces from Lychet, Maltravors, Dorset, England (1378) to Portsmouth, Newport, Rhode Island, United States (1649) across 8 generations.

Direct Lineage

generations

Frequently Asked Questions

: Mary Dennis (1649–1698) was born in Portsmouth, Newport, Rhode Island, United States and died in Long Island City, Queens, New York, 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 (B) based on cross-tree validation.
: Right now, 2 researchers on YourRoots have Mary 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 8 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.