How many John Hardin census records do you have?

We have 2947 US Census records for John Hardin, from 1900 to 1950, across 47 states and DC.

What's in a John Hardin 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 Hardin'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 Hardin census records free?

Yes. All John Hardin 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 Hardin?

We have John Hardin records from the 1900 through 1950 US Federal Census, across 47 states and DC. Use the year and state filters to narrow your results.

How do I find John Hardin 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 Hardin?

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 Hardin — US Census Records & Model Tree

We found 2947 free census records for John Hardin across 6 census years (1900–1950), in 47 states and DC and 980 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Hardin Census Records by State & County

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Showing of 2947 records for John Hardin US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John Hardin		Monroe, Indiana	Indiana	Farmer	Son
1930	John D Hardin		Marion, Indiana	Indiana	—	Son
1940	John Hardin	64	Boone-County, Missouri	Missouri	Operator	Head
1940	John C. Hardin	33	Warren-County, Ohio	Ohio	Farm Hand	Head
1930	John S. Hardin		Fairfax, Virginia	Maryland	Officer	Head
1940	John W. Hardin	89	Ford-County, Kansas	Kentucky	—	Head
1920	John R. Hardin		Henry, Virginia	Virginia	—	Son
1940	John M Hardin	15	Scioto-County, Ohio	Ohio	—	Son
1910	John L. Hardin		Sharp, Arkansas	Arkansas	Farmer	Head
1940	John M. Hardin	24	Cook-County, Illinois	Illinois	Typesetter	Son
1910	John M Hardin		Roane, Tennessee	Tennessee	Labor	Head
1920	John W. Hardin		Harrison, Kentucky	Kentucky	—	Son
1910	John T Hardin		Alameda, California	Texas	Contractor	Head
1910	John B Hardin		Roane, Tennessee	Tennessee	—	Son
1910	John Hardin		Allegheny, Pennsylvania	Pennsylvania	None	Son
1940	John M Hardin	45	Madison-County, Tennessee	Tennessee	Operator	Head
1940	John N. Hardin	14	Johnson-County, Indiana	Indiana	—	Son
1930	John Jr. Hardin		Jefferson, Arkansas	Arkansas	Farm Laborer	Son
1940	John Hardin	16	Coles-County, Illinois	Illinois	—	Son
1910	John B. Hardin		Chester, Tennessee	Tennessee	Farmer	Head
1940	John Hardin	67	Burke-County, North Carolina	North Carolina	—	Head
1930	John B Hardin		Tulare, California	California	—	Son
1930	John Hardin		Los Angeles, California	California	—	Son
1940	John P. Hardin	46	Rutherford-County, North Carolina	North Carolina	Slasher Man	Head
1940	John Hardin	10	Limestone-County, Texas	Texas	—	Son
1940	John O. Hardin	34	Floyd-County, Georgia	Georgia	Truck Driver	Head
1940	John Hardin	13	Grant-County, Arkansas	Arkansas	—	Son
1940	John Hardin	16	Washington-County, Tennessee	Tennessee	Saw Mill	Son
1940	John E. Hardin	23	Washington-County, Arkansas	Arkansas	Laborer	Son
1930	John Hardin		Baltimore, Maryland	Maryland	Chauffeur	Head

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About John Hardin US Census Records & Model Tree

We've indexed 2947 free, proprietary US Census records for John Hardin across 1900–1950, covering 47 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, 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, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, 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 2947 US Census records for John Hardin, from 1900 to 1950, across 47 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 Hardin'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 Hardin 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 Hardin records from the 1900 through 1950 US Federal Census, across 47 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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