How many John Mills census records do you have?

We have 8023 US Census records for John Mills, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All John Mills 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 Mills?

We have John Mills records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find John Mills 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 Mills?

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 Mills — US Census Records & Model Tree

We found 8023 free census records for John Mills across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1650 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Mills Census Records by State & County

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Showing of 8023 records for John Mills US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	John Mills		Laurens, South Carolina	South Carolina	Farmer	Son
1900	John Mills	7	Marlboro, South Carolina	South Carolina	—	Son
1940	John S. Mills	48	Ottawa-County, Michigan	Illinois	Rural Carrier	Head
1940	John J. Mills	39	Bristol-County, Massachusetts	England	Doffer	Son
1920	John Mills		Putnam, Illinois	Illinois	Farmer	Head
1930	John R. Mills		Dorchester, Maryland	Maryland	Farmer	Head
1930	John J Mills		Bergen, New Jersey	New Jersey	Retired	Head
1940	John A. Mills	64	Knox-County, Kentucky	Kentucky	Farmer	Head
1920	John Mills		Oneida, New York	Italy	Butcher	Head
1930	John Mills		Muscatine, Iowa	Iowa	Farmer	Head
1920	John F. Mills		Montgomery, Kansas	Iowa	Farmer	Head
1940	John Mills	55	Cook-County, Illinois	Sweden	Carpenter	Head
1920	John Mills		Nemaha, Nebraska	Iowa	Farmer	Head
1940	John Mills	79	Russell-County, Kansas	Illinois	Farmer	Head
1940	John Sr. Mills	77	Clearfield-County, Pennsylvania	England	Manager	Head
1930	John J Mills		Worcester, Massachusetts	New York	None	Head
1910	John Mills		Chesterfield, South Carolina	South Carolina	Farm Laborer	Son
1940	John W. Mills	17	Daviess-County, Kentucky	Kentucky	Farmer	Son
1910	John Mills		Gallatin, Illinois	Illinois	—	Son
1910	John H Mills		Charles, Maryland	Maryland	Farmer	Head
1910	John C. Mills		Hill, Texas	Alabama	Farmer	Head
1940	John Mills	16	Knox-County, Kentucky	Kentucky	—	Son
1910	John S Mills		Montgomery, Mississippi	Mississippi	Farmer	Head
1940	John M. Mills	47	Wythe-County, Virginia	Virginia	Carpenter	Head
1930	John Mills		Essex, Massachusetts	Massachusetts	—	Son
1930	John M Mills		None, None	—	None	Son
1910	John J. Mills		Bergen, New Jersey	New Jersey	Home	Son
1930	John W. Mills		Franklin, Pennsylvania	Pennsylvania	Farmer	Son
1930	John Mills		Halifax, North Carolina	North Carolina	Farmer	Head
1940	John A. Mills	19	Knox-County, Kentucky	Kentucky	New Worker	Son

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About John Mills US Census Records & Model Tree

We've indexed 8023 free, proprietary US Census records for John Mills across 1900–1950, covering 50 states, DC, and 1 territory: Alabama, Alaska, 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, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, 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 8023 US Census records for John Mills, from 1900 to 1950, across 50 states, DC, and 1 territory.
: 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 Mills'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 Mills 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 Mills records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. 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.