How many William John census records do you have?

We have 3132 US Census records for William John, from 1900 to 1950, across 50 states and DC.

What's in a William John census record?

You'll see William'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 William John'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 William John census records free?

Yes. All William John 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 William John?

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

How do I find William John 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 William John?

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.

William John — US Census Records & Model Tree

We found 3132 free census records for William John across 6 census years (1900–1950), in 50 states and DC and 955 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William John Census Records by State & County

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Showing of 3132 records for William John US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	William John	30	Baltimore-City-County, Maryland	Maryland	Fireman	Head
1930	William John		Montgomery, Ohio	Ohio	Time Keeper	Son
1940	William John	57	Morton-County, North Dakota	Indiana	Farmer	Head
1920	William John		Caroline, Maryland	Maryland	Farmer	Head
1910	William John		Providence, Rhode Island	Rhode Island	—	Son
1930	William J. John		Logan, Ohio	Ohio	—	Son
1900	William John	6	Luzerne, Pennsylvania	Pennsylvania	—	Son
1910	William J. John		Lawrence, Pennsylvania	Wales	Clergyman	Head
1940	William John	55	Lake-County, Montana	Idaho	Farmer	Head
1930	William John		Cuyahoga, Ohio	Ohio	—	Son
1940	William John	18	Todd-County, Minnesota	Minnesota	Laborer	Son
1910	William John		Luzerne, Pennsylvania	Pennsylvania	Apprentice	Son
1940	William John	12	Orleans-County, Louisiana	Louisiana	—	Son
1920	William John		Le Sueur, Minnesota	Minnesota	Laborer	Son
1910	William E. John		Northumberland, Pennsylvania	Pennsylvania	Farmer	Head
1900	William John	16	Luzerne, Pennsylvania	Pennsylvania	Hardware Clerk	Son
1940	William John	10	Rensselaer-County, New York	New York	—	Son
1940	William Sr John	28	Erie-County, New York	New York	Laborer	Head
1920	William John		Jefferson, Alabama	Alabama	—	Son
1940	William John	37	Cook-County, Illinois	Illinois	Farmer	Head
1920	William John		Chester, South Carolina	South Carolina	None	Son
1910	William John		Columbia, Pennsylvania	Pennsylvania	—	Son
1930	William John		Wayne, Michigan	Kentucky	—	Son
1910	William John		Cook, Illinois	Germany	Dyer	Head
1930	William John		Allegheny, Pennsylvania	Pennsylvania	—	Son
1910	William John		Philadelphia, Pennsylvania	Pennsylvania	Laborer	Head
1930	William J John		Cook, Illinois	Illinois	—	Son
1910	William John		Philadelphia, Pennsylvania	Pennsylvania	—	Son
1930	William John		Philadelphia, Pennsylvania	Pennsylvania	Bookkeeper	Son
1930	William John		Luzerne, Pennsylvania	Pennsylvania	—	Son

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About William John US Census Records & Model Tree

We've indexed 3132 free, proprietary US Census records for William John across 1900–1950, covering 50 states and DC: 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, 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 William 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 3132 US Census records for William John, from 1900 to 1950, across 50 states and DC.
: You'll see William'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 William John'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 William John 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 William John records from the 1900 through 1950 US Federal Census, across 50 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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