How many John Jennings census records do you have?

We have 6189 US Census records for John Jennings, from 1900 to 1950, across 49 states and DC.

What's in a John Jennings census record?

You'll see John's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.

How do I use census records for family research?

Census records are a snapshot of a family every 10 years. You can follow John Jennings's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.

Are John Jennings census records free?

Yes. All John Jennings census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.

Which census years and states cover John Jennings?

We have John Jennings records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters to narrow your results.

How do I find John Jennings in the census?

Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.

What is the Model Tree for John Jennings?

The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.

Where does the census data come from?

All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

John Jennings — US Census Records & Model Tree

We found 6189 free census records for John Jennings across 6 census years (1900–1950), in 49 states and DC and 1276 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 6189 records for John Jennings US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John S. Jennings		Orangeburg, South Carolina	South Carolina	Truck Driver	Head
1940	John William Jennings	27	Marion-County, Illinois	Illinois	Carpenter	Son
1940	John A. Jennings	22	King-County, Washington	Washington	Fire Salesman	Son
1920	John A Jennings		El Paso, Texas	New Mexico	—	Son
1940	John A Jennings	29	Webster-County, Mississippi	Mississippi	Farmer	Head
1930	John H. Jr. Jennings		Unicoi, Tennessee	Tennessee	—	Son
1940	John J. Jennings	31	Saratoga-County, New York	New York	Violin Player	Son
1930	John A. Jennings		Davidson, Tennessee	Tennessee	Farmer	Head
1920	John T. Jennings		Charlotte, Virginia	Virginia	Farmer	Head
1940	John D. Jennings	56	Tallahatchie-County, Mississippi	Mississippi	Farmer	Head
1930	John Jennings		Lauderdale, Tennessee	Tennessee	Farmer	Head
1940	John E. Jennings	79	Marquette-County, Michigan	Michigan	Laborer	Head
1940	John M Jennings	70	Grayson-County, Virginia	Virginia	Trader	Head
1920	John Jennings		Saginaw, Michigan	Canada	Retired Farmer	Head
1930	John H. Jennings		Phillips, Kansas	Kentucky	Farmer	Head
1940	John F. Jennings	13	Franklin-County, Ohio	Ohio	—	Son
1910	John E Jennings		Strafford, New Hampshire	New Hampshire	Cotton Mill	Son
1920	John Jennings		Orangeburg, South Carolina	South Carolina	Farmer	Head
1930	John B. Jennings		Kershaw, South Carolina	South Carolina	None	Son
1910	John Jennings		Bremer, Iowa	Iowa	Farmer	Head
1940	John Jennings	19	Hamilton-County, Ohio	Ohio	—	Son
1920	John F Jennings		Lawrence, Tennessee	Alabama	Farmer	Son
1940	John J. Jennings	46	Cook-County, Illinois	Irish Free State	Laborer	Head
1940	John Wesley Jennings	12	Orangeburg-County, South Carolina	South Carolina	—	Son
1920	John D Jennings		Orangeburg, South Carolina	South Carolina	—	Son
1940	John Jennings	15	Webster-County, Mississippi	Mississippi	—	Son
1940	John Jennings	15	Essex-County, Massachusetts	Massachusetts	—	Son
1940	John Jennings	38	Monroe-County, Pennsylvania	Penna	Laborer	Head
1910	John Jennings		Talladega, Alabama	Georgia	Farmer	Head
1940	John Jennings	15	Monroe-County, Pennsylvania	Penna	—	Son

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About John Jennings US Census Records & Model Tree

We've indexed 6189 free, proprietary US Census records for John Jennings across 1900–1950, covering 49 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.

Each record includes our Model Tree — a longitudinal reconstruction that links the same person across census decades using machine learning (XGBoost record linkage). Every link carries a confidence score: Verified (≥0.99), Confirmed (≥0.95), or Linked (lower confidence). This tells you not just what the census says, but how reliably we've connected records across time.

Every record also shows the full household — who John lived with, their ages, birthplaces, and occupations. For 1940 and 1950 records, you can view the original handwritten census page from the National Archives.

How we build the Model Tree. YourRoots independently indexes US Census records from NARA microfilm and links persons across decades using XGBoost-based record linkage. Each link's confidence is a per-pair match score from the model. Household corroboration (co-residents appearing on the same census pages in multiple years) strengthens the signal. The Model Tree is not a family tree submitted by users — it's reconstructed from the census data itself.

Last updated: July 30, 2026

Frequently Asked Questions

: We have 6189 US Census records for John Jennings, from 1900 to 1950, across 49 states and DC.
: You'll see John's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.
: Census records are a snapshot of a family every 10 years. You can follow John Jennings's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.
: Yes. All John Jennings census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.
: We have John Jennings records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters above to narrow your results.
: Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.
: The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.
: All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

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Charles Jennings George Jennings James Jennings Mary Jennings Robert Jennings William Jennings

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