YourRoots Logo
Sign up free
banner

Sign up to explore more

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

Sign up free

Mary Byrne 1718 – 1771 – Genealogical Records

Birth Date: abt 1718

Birth Location: Charles County, Maryland, USA

Death Date: 1771

Death Location: Charles County, Maryland, USA

Father: Charles Byrne

Mother: Margery Thomas-Lyne-Byrne

Spouse(s): William Cox

Children(s): James Cox

The story of Mary Byrne began in 1718 in Charles County, Maryland, USA. Mary Byrne married William Cox, and had children including James Thomas Cox. Mary Byrne passed away in 1771 in Charles County, Maryland, USA.

Find more search results for Mary Byrne
MB

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:
N/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 Mary Byrne began in 1718 in Charles County, Maryland, USA.
  • Mary Byrne married William Cox, and had children including James Thomas Cox.
  • Mary Byrne passed away in 1771 in Charles County, Maryland, USA.

Immediate Family

Parents

Spouses(s)

Children(s)

Mary Byrne's Ancestors

Self
Mary Byrne
1718 – 1771
Birth Place: Charles County, Maryland, USA
Parents
Charles Byrne
1688 – 1763
Ireland
Margery Thomas-Lyne-Byrne
1672 – 1771
Charles Co, Maryland, USA
Grandparents
Sir (Gregory Byrne, 1st Baron of) Timogue
1640 – 1712
Timogue Castle, Queen's Co., English colony in Ireland
Alice Fleming
1671 – 1753
Slane, 5314, Timogue, Queens County, Ireland
Great-Grandparents
2nd-Great-Grandparents

Mary Byrne's Descendants

1.
MB
Mary Byrne (abt 1718 – 1771) m. William Cox (abt 1716 – 14 DEC 1761)
  1. 1. James (Thomas) Cox (1755 – 1840) m. Eleanor (Elizabeth) Luckett (1760 – 7 May 1839)
    1. 1. John (D) Cox (17 Nov 1790 – 1877) m. Julia (Ann) Dubois (1794 – 1850)
      1. 1. John (D. Cox) jr. (7/16/1822 – 2 Mar 1900) m. Leanna Wheeler (10 Jul 1830 – 23 Jun 1878)
        1. 1. John (Monroe) Cox (09 NOV 1855 – AFT 1910) m. Nancy (Jane) VANCE\Cox (May 1870 – )

Mary Byrne's Timeline

2 Records

1718
abt 1718
Birth of Mary Byrne in Charles County, Maryland, USA
Charles County, Maryland, USA
1771
1771
Age 53
Death of Mary Byrne in Charles County, Maryland, USA
Charles County, Maryland, USA

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: abt 1718
    Event Place: Charles County, Maryland, USA

    Genealogy Event 2
    Event Type: Death
    Event Date: 1771
    Event Place: Charles County, Maryland, USA

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