YourRoots by Genomelink
banner

Sign up to explore more

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

Mamie B. O'Brien 1887–1918 – Genealogical Records

Birth Date: 14 December 1887

Birth Location: Michigan, United States of America

Death Date: 5 November 1918

Death Location: Port Angeles, Clallam County, Washington, United States of America

Father: William Thompson

Mother: Selina Thompson

Spouse(s):

Children(s):

Mamie B. O'Brien was born in 1887 in Michigan, United States of America, the child of William Smith Thompson And Selina Thompson. Mamie B. O'Brien passed away in 1918 in Port Angeles, Clallam County, Washington, United States of America.

Find more search results for Mamie O'Brien
MO

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

  • Mamie B. O'Brien was born in 1887 in Michigan, United States of America, the child of William Smith Thompson And Selina Thompson.
  • Mamie B. O'Brien passed away in 1918 in Port Angeles, Clallam County, Washington, United States of America.

Immediate Family

Parents

William Thompson
1843–1931
Birth Location: Petersborough, Ontario, Canada
WT
Selina Thompson
1844–1926
Birth Location: Newcastle, Durham Regional Municipality, Ontario, Canada
ST

Spouses(s)

Children(s)

Mamie O'Brien's Ancestors

Self
Mamie O'Brien
1887–1918
Birth Place: Michigan, United States of America
Parents
William Smith Thompson
1843–1931
Petersborough, Ontario, Canada
Selina Thompson
1844–1926
Newcastle, Durham Regional Municipality, Ontario, Canada
Grandparents
Thomas Thompson
1813–1852
England
Ann (Hannah) Day
1824–1895
Kirkdale, Yorkshire, England
Lorenzo (D) Aldrich
1796–1854
Wallingford, Rutland, Vermont, USA
Fanny Aldrich
1810–1850
Quebec, Canada
Great-Grandparents
William Day
1798–1851
Mary Marpass
1799–1861
Ariel Aldrich
1780–1830
Lucy Martin
1780–1850
2nd-Great-Grandparents

Mamie O'Brien's Timeline

2 Records

1887
14 December 1887
Birth of Mamie B. O'Brien in Michigan, United States of America
Michigan, United States of America
1918
5 November 1918
Age 31
Death of Mamie B. O'Brien in Port Angeles, Clallam County, Washington, United States of America
Port Angeles, Clallam County, Washington, United States of America

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 14 December 1887
    Event Place: Michigan, United States of America
    Record Source: U.S., Find a Grave® Index, 1600s-Current

    Genealogy Event 2
    Event Type: Death
    Event Date: 5 November 1918
    Event Place: Port Angeles, Clallam County, Washington, United States of America
    Record Source: U.S., Find a Grave® Index, 1600s-Current

    Genealogy Event 3
    Event Type: Burial
    Event Place: Port Angeles, Clallam County, Washington, United States of America
    Record Source: U.S., Find a Grave® Index, 1600s-Current
Find more search results for Mamie O'Brien

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