Who was Dennis Hayes?

Dennis Hayes (1858–1924) was born in Cambridge, Middlesex, Massachusetts, United States and died in Cambridge City, Middlesex, Massachusetts. 2 researchers on YourRoots have this ancestor in their family trees.

How many people are researching Dennis?

Right now, 2 researchers on YourRoots have Dennis in their trees. The ancestor migration map traces 4 generations of this lineage.

What records do they have for Dennis?

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.

Dennis Joseph Hayes 1858–1924

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 Dennis Hayes in their family trees — each with their own records and documentation. Trace the migration path across 4 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, with linked records

Born 06 Jul 1858 · Cambridge, Middlesex, Massachusetts, United States

Died 13 Mar 1924 · Cambridge City, Middlesex, Massachusetts

Father Daniel Hayes

Mother Anne Oconnell

Siblings Catherine C Hayes, Daniel J Hayes, Ellen M Hayes, Jeremiah Hayes, Joanna Hayes, Mary A Mary Elizabeth Hayes

Records

1880 United States Federal Census

Compare Tree

Researchers connected through Dennis Hayes 1858–1924

and 1 more tree owner connected with Dennis Hayes 1858–1924

Immediate Family

Parents

Daniel Hayes

Anne Oconnell

Spouse(s)

No spouse recorded

Children

No children recorded

Biography

The story of Dennis Joseph Hayes began in 1858 in Cambridge, Middlesex, Massachusetts, United States. In 1880, Dennis Joseph Hayes resided in Cambridge, Middlesex, Massachusetts, USA. Dennis Joseph Hayes passed away in 1924 in Cambridge City, Middlesex, Massachusetts.

Sources

1

Census 1880 United States Federal Census

Life Timeline

1858

Birth of Dennis Joseph Hayes in Cambridge, Middlesex, Massachusetts, United States

Birth

1880

Dennis Joseph Hayes resided here in Cambridge, Middlesex, Massachusetts, USA

Residence

1924

Death of Dennis Joseph Hayes in Cambridge City, Middlesex, Massachusetts

Death

Oldest Ancestor Line from Dennis Hayes

This ancestor line traces from Mallow, Cork, Ireland (1745) to Cambridge, Middlesex, Massachusetts, United States (1858) across 4 generations.

Direct Lineage

generations

Frequently Asked Questions

: Dennis Hayes (1858–1924) was born in Cambridge, Middlesex, Massachusetts, United States and died in Cambridge City, Middlesex, Massachusetts. 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 Dennis 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 4 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.