How many John Allison census records do you have?

We have 3770 US Census records for John Allison, from 1900 to 1950, across 49 states, DC, and 1 territory.

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

Yes. All John Allison 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 Allison?

We have John Allison records from the 1900 through 1950 US Federal Census, across 49 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find John Allison 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 Allison?

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 Allison — US Census Records & Model Tree

We found 3770 free census records for John Allison across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 1007 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 3770 records for John Allison US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Allison	38	Vermilion-County, Illinois	Illinois	Farm Laborer	Head
1930	John Allison		Cambria, Pennsylvania	Pennsylvania	Laborer	Son
1940	John Allison	20	Armstrong-County, Pennsylvania	Pennsylvania	Laborer	Son
1940	John Allison	29	Douglas-County, Nebraska	Nebraska	Asst. Rural Mail Carrier	Head
1930	John J Allison		Schuylkill, Pennsylvania	Pennsylvania	Labor	Head
1940	John E. Allison	34	Carbon-County, Utah	Colorado	Boiler Washer	Son
1940	John Allison	24	Blair-County, Pennsylvania	Pennsylvania	Truck Driver	Son
1940	John F. Allison	30	Allegheny-County, Pennsylvania	Montana	Glazier	Son
1920	John L Allison		Schuylkill, Pennsylvania	Pennsylvania	Engineer	Head
1940	John P Allison	78	Caswell-County, North Carolina	North Carolina	Farmer	Head
1940	John Allison	65	Cuyahoga-County, Ohio	Sweden	Milkman	Head
1940	John Martin Allison	57	Weld-County, Colorado	Georgia	Policeman	Head
1930	John W Allison		Shenandoah, Virginia	Virginia	Farmer	Head
1940	John G. Allison	53	Nicholas-County, Kentucky	Kentucky	Farmer	Head
1940	John E. Allison	57	Carroll-County, Illinois	Nebraska	Switchman	Head
1920	John H Allison		Napa, California	Missouri	Carpenter	Head
1930	John E. Allison		White, Illinois	Indiana	Farmer	Head
1940	John W. Allison	57	Putnam-County, Tennessee	Tennessee	Farmer	Head
1940	John L. Allison	74	Suwannee-County, Florida	Florida	Farm Owner	Head
1930	John Allison		Cherokee, South Carolina	South Carolina	—	Son
1930	John E. Allison		Elbert, Colorado	Nebraska	Laborer	Son
1910	John H Allison		Monroe, Iowa	Missouri	Farm Laborer	Son
1910	John Allison		Loudon, Tennessee	Tennessee	Farmer	Head
1940	John Allison	13	York-County, South Carolina	South Carolina	—	Son
1920	John Allison		Hamilton, Tennessee	Tennessee	—	Son
1910	John H Allison		Kingfisher, Oklahoma	Ohio	Farmer	Head
1920	John S Allison		Donley, Texas	Texas	Farmer	Head
1930	John Allison		Butler, Pennsylvania	Pennsylvania	Laborer	Son
1940	John H. Allison	33	Caddo-County, Oklahoma	Missouri	Farmer	Head
1930	John Allison		Panola, Texas	Texas	—	Son

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About John Allison US Census Records & Model Tree

We've indexed 3770 free, proprietary US Census records for John Allison across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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 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 3770 US Census records for John Allison, from 1900 to 1950, across 49 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 Allison'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 Allison 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 Allison records from the 1900 through 1950 US Federal Census, across 49 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.

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