YourRoots by Genomelink
banner

Sign up to explore more

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

John Henry Slack 1858–1945 – Genealogical Records

Birth Date: 1 May 1858

Birth Location: Brockville, Leeds and Grenville United Counties, Ontario, Canada

Death Date: 7 February 1945

Death Location: Dakota City, Dakota County, Nebraska, United States of America

Father: John Slack

Mother: Margaret Slack

Spouse(s): Mary Fitzer

Children(s): Joseph Slack, Jenett Slack, Amis Slack, Lila Huffman, Elmer Slack

John Henry Slack was born in 1858 in Brockville, Leeds and Grenville United Counties, Ontario, Canada, the child of John Palmer Slack And Margaret Wiltse Slack. John Henry Slack married Mary Elizabeth Fitzer, and had children including Amis Harold Slack, Elmer Ethan Slack, Jenett Slack, Joseph Mckinley Slack, Lila Hester Slack Huffman. John Henry Slack passed away in 1945 in Dakota City, Dakota County, Nebraska, United States of America.

Find more search results for John Slack
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:
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

  • John Henry Slack was born in 1858 in Brockville, Leeds and Grenville United Counties, Ontario, Canada, the child of John Palmer Slack And Margaret Wiltse Slack.
  • John Henry Slack married Mary Elizabeth Fitzer, and had children including Amis Harold Slack, Elmer Ethan Slack, Jenett Slack, Joseph Mckinley Slack, Lila Hester Slack Huffman.
  • John Henry Slack passed away in 1945 in Dakota City, Dakota County, Nebraska, United States of America.

Immediate Family

Parents

Spouses(s)

Children(s)

John Slack's Ancestors

Self
John Slack
1858–1945
Birth Place: Brockville, Leeds and Grenville United Counties, Ontario, Canada
Parents
John Palmer Slack
1822–1869
Lansdowne, Yukon Census Division, Yukon, Canada
Margaret (Wiltse) Slack
1819–1896
Canada
Grandparents
Henery Wiltse
1791–1855
Wiltsetown, Leeds and Grenville United Counties, Ontario, Canada
Elizabeth Slack
1780–1872
Canada
Great-Grandparents
James Canada
1764–1827
Jane Lake
1768–1827
2nd-Great-Grandparents
Jeremiah Smith.
1718–1792
Mary Wiltse
1719–1793

John Slack's Descendants

1.
JS
John (Henry) Slack (1 May 1858–7 February 1945) m. Mary (Elizabeth) Fitzer (January 1868–9 December 1939)
  1. 1. Joseph (Mckinley) Slack 1901–1970 m. Nellie (May) Striker 1909–1969
    1. 1. Patricia (Slack Foreman) Miller 1933–1976 m. Max (Unla) Foreman 1926–1957
    2. 2. Mildred (Violet Slack) Willis 1930–2010 m. Oliver (August) Willis 1918–1986
      1. 1. Harry (W.) Willis 1950–1950
    3. 3. Helen (Lucille Slack Ferreyra) Hill 1940–1990 m. Eliseo (Medina) Ferreyra 1931–1998
    4. 4. Deloris (Fay Slack) Hogsett 1932–2015 m. Merle (John) Hogsett 1916–2009
  2. 2. Jenett Slack 1890–1893
  3. 3. Amis (Harold) Slack 1898–1982 m. Ethel (Elizabeth) Groves 1910–1995
  4. 4. Lila (Hester Slack) Huffman 1894–1950 m. Harry (Henry) Hoffman 1887–1938
    1. 1. Mylo (John) Huffman 1931–1979
    2. 2. Harold (Joseph) Huffman 1915–1977 m. Anna (Gertrude) Lane 1920–1994
    3. 3. Francis (Jerome) Huffman 1926–1963
  5. 5. Elmer (Ethan) Slack 1887–1961

John Slack's Timeline

2 Records

1858
1 May 1858
Birth of John Henry Slack in Brockville, Leeds and Grenville United Counties, Ontario, Canada
Brockville, Leeds and Grenville United Counties, Ontario, Canada
1945
7 February 1945
Age 87
Death of John Henry Slack
None

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 1 May 1858
    Event Place: Brockville, Leeds and Grenville United Counties, Ontario, Canada
    Record Source: U.S., Find a Grave® Index, 1600s-Current

    Genealogy Event 2
    Event Type: Death
    Event Date: 7 February 1945
    Record Source: U.S., Find a Grave® Index, 1600s-Current

    Genealogy Event 3
    Event Type: Burial
    Event Place: Dakota City, Dakota County, Nebraska, United States of America
    Record Source: U.S., Find a Grave® Index, 1600s-Current

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