YourRoots by Genomelink
banner

Sign up to explore more

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

Peter J. O'Brien 1776–1850 – Genealogical Records

Birth Date: 4 Apr 1776

Birth Location: Bryantown, Charles County, Maryland

Death Date: abt 1850

Death Location: Daviess County, Indiana

Father: Ignatius Brien

Mother: Rhoda Wethington

Spouse(s):

Children(s):

The story of Peter J. O'Brien began in 1776 in Bryantown, Charles County, Maryland. Peter J. O'Brien passed away in 1850 in Daviess County, Indiana.

Find more search results for Peter O'Brien
PO

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 Peter J. O'Brien began in 1776 in Bryantown, Charles County, Maryland.
  • Peter J. O'Brien passed away in 1850 in Daviess County, Indiana.

Immediate Family

Parents

Spouses(s)

Children(s)

Peter O'Brien's Ancestors

Self
Peter O'Brien
1776–1850
Birth Place: Bryantown, Charles County, Maryland
Parents
Ignatius O' Brien
1750–1849
Leonardtown, Saint Marys County, Maryland
Rhoda (Ann) Wethington
1751–1849
Leonardtown, Saint Marys County Maryland
Grandparents
William (B) O'Brien
1720–1769
Saint Marys,,Maryland,USA
Elizabeth Douglas
1726–1750
St Mary's, Maryland, USA
Margaret (Monica) Jones
1730–1763
Leonardtown,Saint Marys,Maryland,USA
Great-Grandparents
William O'Bryan
1687–1739
Ann O'Bryan
1690–1734
Thomas Douglas
1692–1756
Elizabeth Gardener
1678–1758
Catherine Byrne
1700–1749
2nd-Great-Grandparents
Mathias O"Brien)
1627–1703
Elizabeth Thompson
1630–1670
Patrick Burns
1674–1737

Peter O'Brien's Timeline

2 Records

1776
4 Apr 1776
Birth of Peter J. O'Brien in Bryantown, Charles County, Maryland
Bryantown, Charles County, Maryland
1850
abt 1850
Age 74
Death of Peter J. O'Brien in Daviess County, Indiana
Daviess County, Indiana

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 4 Apr 1776
    Event Place: Bryantown, Charles County, Maryland

    Genealogy Event 2
    Event Type: Death
    Event Date: abt 1850
    Event Place: Daviess County, Indiana

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