YourRoots by Genomelink
banner

Sign up to explore more

Create a free account to navigate family trees, view ancestors, and discover connections.

Dennis Duffy 1877–1954 – Genealogical Records

Birth Date: 25 Aug 1877

Birth Location: Toome, County Donegal, Ireland

Death Date: 26 Oct 1954

Death Location: Philadelphia, Philadelphia, Pennsylvania, USA

Father: Bernard Duffy

Mother: Catherine McCarry

Spouse(s): Margaret McIntyre

Children(s): Joseph Duffy, Daniel Duffy, James Duffy, Mary Duffy, Dennis Jr., Hugh Duffy, John Duffy, Bernard Duffy, Catherine Duffy

The story of Dennis Duffy began in 1877 in Toome, County Donegal, Ireland. In 1935, Dennis Duffy resided in Philadelphia, Philadelphia, Pennsylvania. Dennis Duffy married Margaret Mcintyre, and had children including Bernard P Duffy, Catherine E Duffy, Daniel Paul Duffy, Dennis I Duffy Jr, Hugh J Duffy, James Duffy, John J Duffy, Joseph Patrick Duffy, Mary Duffy. Dennis Duffy passed away in 1954 in Philadelphia, Philadelphia, Pennsylvania, USA.

Find more search results for Dennis Duffy
DD

Reliability Score

This score reflects the reliability of the source family tree. A high rating indicates a trustworthy source with strong data consistency.

Reliability Score:
A
Criteria:
  • A 3 criteria (Strong)
  • B 2 criteria (Medium)
  • C 1 criteria (Basic)
  • N/A 0 criteria (Insufficient)

This tree's reliability score:

  • Record available
  • Descendant's record available
  • Star tree owner

Biography

  • The story of Dennis Duffy began in 1877 in Toome, County Donegal, Ireland.
  • In 1935, Dennis Duffy resided in Philadelphia, Philadelphia, Pennsylvania.
  • Dennis Duffy married Margaret Mcintyre, and had children including Bernard P Duffy, Catherine E Duffy, Daniel Paul Duffy, Dennis I Duffy Jr, Hugh J Duffy, James Duffy, John J Duffy, Joseph Patrick Duffy, Mary Duffy.
  • Dennis Duffy passed away in 1954 in Philadelphia, Philadelphia, Pennsylvania, USA.

Immediate Family

Parents

Spouses(s)

Children(s)

Dennis Duffy's Ancestors

Self
Dennis Duffy
1877–1954
Birth Place: Toome, County Donegal, Ireland
Parents
Bernard Duffy
1856–1907
Toome, County Donegal, Ireland
Catherine McCarry
1837–1895
Doaghbeg, Fannett, Donegal, Ireland
Grandparents
James (Aloysius) Duffy
1833–1903
Donegal, Ireland
Nancy (Anna) McGuiness
1829–1875
Donegal, Ireland
Great-Grandparents
Matthew Duffy
1793–1852
Catherine Prendergast
1796–1878
2nd-Great-Grandparents
William Duffy
1770–1836
Judith Morgan
–1866
George Prendergast
1750–

Dennis Duffy's Descendants

1.
DD
Dennis Duffy (25 Aug 1877–26 Oct 1954) m. Margaret McIntyre (About 1881–7 Jan 1959)
  1. 1. Joseph (Patrick) Duffy 1921–2000 m. Frances (Dolores) Coll 1923–2006
  2. 2. Daniel (Paul) Duffy 1907–1996 m. Emma (Virginia) Kennedy 1907–1968
    1. 1. Agnes (Marie) Duffy 1933–1982
    2. 2. Margaret ("Peggy" Anne) Duffy 1928–2006
    3. 3. Mary (T.) Duffy 1929–2001
    4. 4. Catherine (E) Duffy 1931–1997 m. Joseph (Patrick) Burke 1929–1988
  3. 3. James Duffy 1918–
  4. 4. Mary Duffy 1920–
  5. 5. Dennis (I Duffy) Jr. 1910–1988
  6. 6. Hugh (J.) Duffy 1912–
  7. 7. John (J.) Duffy 1908– m. Jane (G Bowers) (Duffy) 1913–
    1. 1. John (J Duffy) Jr 1933–2019 m. Bridget (A) Cotter 1932–2010
  8. 8. Bernard (P.) Duffy 1906–1998
  9. 9. Catherine (E.) Duffy 1914–

Dennis Duffy's Timeline

5 Records

1877
25 Aug 1877
Birth of Dennis Duffy in Toome, County Donegal, Ireland
Toome, County Donegal, Ireland
1935
1935
Age 58
Dennis Duffy resided here in Philadelphia, Philadelphia, Pennsylvania
Philadelphia, Philadelphia, Pennsylvania
1940
1940
Age 63
Dennis Duffy resided here in , Philadelphia, Philadelphia, Pennsylvania, USA
, Philadelphia, Philadelphia, Pennsylvania, USA
1954
26 Oct 1954
Age 77
Death of Dennis Duffy in Philadelphia, Pennsylvania
Philadelphia, Pennsylvania
1954
26 Oct 1954
Age 77
Death of Dennis Duffy in Philadelphia, Philadelphia, Pennsylvania, USA
Philadelphia, Philadelphia, Pennsylvania, USA

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 25 Aug 1877
    Event Place: Toome, County Donegal, Ireland
    Record Source:
    [1] 1940 United States Federal Census, Year: 1940; Census Place: Philadelphia, Philadelphia, Pennsylvania; Roll: m-t0627-03707; Page: 3A; Enumeration District: 51-659
    [2] Pennsylvania, U.S., Death Certificates, 1906-1967, Pennsylvania Historic and Museum Commission; Harrisburg, PA; Pennsylvania (State). Death Certificates, 1906-1968; Certificate Number Range: 084001-086700

    Genealogy Event 2
    Event Type: Custom Event
    Event Date: 9 Jun 1900
    Event Place: New York, New York, USA
    Record Source: New York, U.S., Arriving Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1900; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 17; Page Number: 156

    Genealogy Event 3
    Event Type: Residence
    Event Date: 1935
    Event Place: Philadelphia, Philadelphia, Pennsylvania
    Record Source: 1940 United States Federal Census, Year: 1940; Census Place: Philadelphia, Philadelphia, Pennsylvania; Roll: m-t0627-03707; Page: 3A; Enumeration District: 51-659

    Genealogy Event 4
    Event Type: Residence
    Event Date: 1940
    Event Place: , Philadelphia, Philadelphia, Pennsylvania, USA
    Record Source: 1940 United States Federal Census, Year: 1940; Census Place: Philadelphia, Philadelphia, Pennsylvania; Roll: m-t0627-03707; Page: 3A; Enumeration District: 51-659

    Genealogy Event 5
    Event Type: Custom Event
    Event Place: Londonderry
    Record Source: New York, U.S., Arriving Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1900; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 17; Page Number: 156

    Genealogy Event 6
    Event Type: Residence
    Event Place: Donegal
    Record Source: New York, U.S., Arriving Passenger and Crew Lists (including Castle Garden and Ellis Island), 1820-1957, Year: 1900; Arrival: New York, New York, USA; Microfilm Serial: T715, 1897-1957; Line: 17; Page Number: 156

    Genealogy Event 7
    Event Type: Death
    Event Date: 26 Oct 1954
    Event Place: Philadelphia, Pennsylvania

    Genealogy Event 8
    Event Type: Death
    Event Date: 26 Oct 1954
    Event Place: Philadelphia, Philadelphia, Pennsylvania, USA
    Record Source: Pennsylvania, U.S., Death Certificates, 1906-1967, Pennsylvania Historic and Museum Commission; Harrisburg, PA; Pennsylvania (State). Death Certificates, 1906-1968; Certificate Number Range: 084001-086700

About YourRoots

Family Tree Map

Explore your family tree geographically

Import your GEDCOM file to transform your family tree into an interactive global map. See your roots laid out visually and understand your true geographic heritage.

Powerful tools like "Trace Back To Me" instantly map your family's migration paths from a chosen ancestor all the way back to you.

LEARN MORE
AI Genealogy Research

Discover ancestors beyond "end-of-line" automatically

Import your family tree and let AI expand it for you. AI Ancestor Finder scans "end-of-line" ancestors to uncover their parents across hundreds of family lines at once. AI Deep Research analyzes selected ancestors and family clusters, suggesting relevant records and next steps.

Turn on Auto Research Mode to get new discoveries daily or weekly, so your tree keeps growing even while you're away.

LEARN MORE
DNA Match

Find more DNA matches across all DNA tests

Combine your DNA data with your family tree to unlock the full power of YourRoots DNA Match. Connect with relatives across major testing services — Ancestry, 23andMe, MyHeritage, and more.

View your matches' maps and trees to identify shared ancestors, and soon you'll be able to add them directly to your own tree and map.

LEARN MORE
Ancestry Reports

Ancestry DNA analysis that goes deeper than others

Unlock exclusive reports that reveal your deeper origins.

  • Deep Ancestry Report — Analyze 130+ ethnicities, sub-regions, and 1,800+ communities in one detailed view.
  • Global & Native American Reports — Developed with Stanford researchers to uncover hidden ancestries across all 22 chromosomes.
  • Ancient DNA Series — Compare your DNA with 1,000+ ancient genomes from Viking, Celtic, and early American civilizations.
LEARN MORE