YourRoots by Genomelink
banner

Sign up to explore more

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

Thaddeus Eugene Sullivan 1912–1990 – Genealogical Records

Birth Date: 4 Jun 1912

Birth Location: Tugaske, Saskatchewan, Canada

Death Date: 5 Feb 1990

Death Location: Palo Alto, Santa Clara County, California, United States of America

Father: Michael Sullivan

Mother: Martha Grieves

Spouse(s): Wilma Sullivan

Children(s): Dennis Sullivan

The story of Thaddeus Eugene Sullivan began in 1912 in Tugaske, Saskatchewan, Canada. Thaddeus Eugene Sullivan married Wilma Ethel Sullivan, and had children including Dennis Eugene Sullivan, Marnie Sullivan. Thaddeus Eugene Sullivan passed away in 1990 in Palo Alto, Santa Clara County, California, United States of America.

Find more search results for Thaddeus Sullivan
TS

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:
B
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 Thaddeus Eugene Sullivan began in 1912 in Tugaske, Saskatchewan, Canada.
  • Thaddeus Eugene Sullivan married Wilma Ethel Sullivan, and had children including Dennis Eugene Sullivan, Marnie Sullivan.
  • Thaddeus Eugene Sullivan passed away in 1990 in Palo Alto, Santa Clara County, California, United States of America.

Immediate Family

Parents

Michael Sullivan
1883–1950
Birth Location: ,Leeds Co.,Ontario,Canada
MS
Martha Grieves
1889–1972
Birth Location: New Brunswick
MG

Spouses(s)

Wilma Sullivan
1923–1949
Birth Location: –
WS

Children(s)

Dennis Sullivan
1943–2006
Birth Location: Sherridon, Flin Flon-Northwest Census Division, Manitoba, Canada
DS

Thaddeus Sullivan's Ancestors

Self
Thaddeus Sullivan
1912–1990
Birth Place: Tugaske, Saskatchewan, Canada
Parents
Michael Eugene Sullivan
1883–1950
,Leeds Co.,Ontario,Canada
Martha Grieves
1889–1972
New Brunswick
Grandparents
Patrick (Owen) Sullivan
1843–1923
Lansdowne, Leeds, Ontario, Canada
Charlotte (Theresa) MacDonald
1850–1916
Lansdowne, Leeds and Grenville United Counties, Ontario, Canada
Great-Grandparents
Michael McDonald
1811–1894
Elizabeth Thompson
1811–1889
2nd-Great-Grandparents
Robert Thompson
1783–1858
Anne Bickett
1785–1846

Thaddeus Sullivan's Descendants

1.
TS
Thaddeus (Eugene) Sullivan (4 Jun 1912–5 Feb 1990) m. Wilma (Ethel) Sullivan (1923–24 April 1949)
  1. 1. Dennis (Eugene) Sullivan 1943–2006

Thaddeus Sullivan's Timeline

2 Records

1912
4 Jun 1912
Birth of Thaddeus Eugene Sullivan in Tugaske, Saskatchewan, Canada
Tugaske, Saskatchewan, Canada
1990
5 Feb 1990
Age 78
Death of Thaddeus Eugene Sullivan in Harris County, Texas, USA
Harris County, Texas, USA

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 4 Jun 1912
    Event Place: Tugaske, Saskatchewan, Canada
    Record Source: U.S., Find a Grave® Index, 1600s-Current

    Genealogy Event 2
    Event Type: Death
    Event Date: 5 Feb 1990
    Event Place: Harris County, Texas, USA
    Record Source: U.S., Find a Grave® Index, 1600s-Current

    Genealogy Event 3
    Event Type: Burial
    Event Place: Palo Alto, Santa Clara County, California, United States of America
    Record Source: U.S., Find a Grave® Index, 1600s-Current
Find more search results for Thaddeus Sullivan

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