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

John "Jack" Sinclair 1889 – 1952 – Genealogical Records

Birth Date: 1889

Birth Location: Nailsworth, South Australia, Australia

Death Date: 28 Nov 1952

Death Location: Mildura, Victoria, Australia

Father: Robert Sinclair

Mother: Marion Smith

Spouse(s): Johanna Commons

Children(s): Marion Sinclair

In 1889, John "Jack" Sinclair entered the world in Nailsworth, South Australia, Australia, born to Robert Sinclair and Marion Ellen Smith. John "Jack" Sinclair married Johanna Claire Commons, and had children including Marion Maud Sinclair. John "Jack" Sinclair passed away in 1952 in Mildura, Victoria, Australia.

Find more search results for John Sinclair
JS

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

  • In 1889, John "Jack" Sinclair entered the world in Nailsworth, South Australia, Australia, born to Robert Sinclair and Marion Ellen Smith.
  • John "Jack" Sinclair married Johanna Claire Commons, and had children including Marion Maud Sinclair.
  • John "Jack" Sinclair passed away in 1952 in Mildura, Victoria, Australia.

Immediate Family

Parents

Robert Sinclair
Birth Location: –
RS
Marion Smith
Birth Location: –
MS

Spouses(s)

Johanna Commons
1904 – 1993
Birth Location: Bendigo, Victoria, Australia
JC

Children(s)

Marion Sinclair
1931 – 2007
Birth Location: –
MS

John Sinclair's Ancestors

Self
John Sinclair
1889 – 1952
Birth Place: Nailsworth, South Australia, Australia
Parents
Robert Sinclair
Marion (Ellen) Smith
Grandparents
Great-Grandparents
2nd-Great-Grandparents

John Sinclair's Descendants

1.
JS
John ("Jack") Sinclair (1889 – 28 Nov 1952) m. Johanna (Claire) Commons (8 Sep 1904 – 15 May 1993)
  1. 1. Marion (Maud) Sinclair (1931 – 2007) m. Ronald (Young) FROST (16 Oct 1925 – 14 Oct 1987)
    1. 1. JANICE FROST m. GRAHAM (COLIN) MCERVALE (5 Dec 1948 – )
      1. 1. JUSTIN (PAUL) MCERVALE (8 Aug 1971 – ) m. CYNTHIA (LOUISE REGINA) MCCLURE (22 April 1975 – )
        1. 1. GEORGIA (LOUISE) MCERVALE (28 Sept 2005 – )
        2. 2. Reese (Regina) MCERVALE (22 Feb 2007 – )
      2. 2. SHERIDAN MCERVALE
      3. 3. CRAIG MCERVALE

John Sinclair's Timeline

2 Records

1889
1889
Birth of John "Jack" Sinclair in Nailsworth, South Australia, Australia
Nailsworth, South Australia, Australia
1952
28 Nov 1952
Age 63
Death of John "Jack" Sinclair in Mildura, Victoria, Australia
Mildura, Victoria, Australia

Sources

    Genealogy Event 1
    Event Type: Death
    Event Date: 28 Nov 1952
    Event Place: Mildura, Victoria, Australia

    Genealogy Event 2
    Event Type: Birth
    Event Date: 1889
    Event Place: Nailsworth, South Australia, Australia
Find more search results for John Sinclair

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