How many John Dunn census records do you have?

We have 19482 US Census records for John Dunn, from 1900 to 1950, across 50 states and DC.

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

Yes. All John Dunn 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 Dunn?

We have John Dunn 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 John Dunn 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 Dunn?

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 Dunn — US Census Records & Model Tree

We found 19482 free census records for John Dunn across 6 census years (1900–1950), in 50 states and DC and 2039 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Dunn Census Records by State & County

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Showing of 19482 records for John Dunn US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John Dunn		Baltimore, Maryland	Maryland	—	Son
1920	John W. Dunn		Erie, New York	New York	—	Son
1940	John H Dunn	54	Caddo-County, Oklahoma	Kansas	Farmer	Head
1940	John P Dunn	23	Cook-County, Illinois	Illinois	Salesman	Son
1930	John Dunn		Norfolk, Massachusetts	Massachusetts	Clerk	Son
1930	John J Dunn		Philadelphia, Pennsylvania	Rhode Island	Doctor	Head
1930	John Dunn		San Francisco, California	California	—	Son
1940	John Dunn	26	Philadelphia-County, Pennsylvania	Penna	—	Son
1930	John Dunn		Hudson, New Jersey	New Jersey	Agent	Son
1930	John Dunn		Baltimore, Maryland	Maryland	Estimator	Son
1920	John L Dunn		Montgomery, North Carolina	North Carolina	Farmer	Head
1940	John E. Dunn	32	Sedgwick-County, Kansas	Kansas	Salesman	Head
1940	John Dunn	30	Passaic-County, New Jersey	New Jersey	Receiving Clerk	Head
1940	John A. Dunn	76	Richmond-City-County, Virginia	Virginia	—	Head
1930	John Dunn		Queens, New York	Ireland	Riveter	Head
1940	John Dunn	48	St.-Louis-City-County, Missouri	Missouri	Laborer	Head
1940	John Dunn	48	Essex-County, New Jersey	New Jersey	Chauffeur	Head
1940	John Dunn	50	Sedgwick-County, Kansas	Kansas	Building Contractor	Head
1920	John Dunn		Plymouth, Massachusetts	Massachusetts	Fireman	Head
1910	John W Dunn		Champaign, Illinois	Kentucky	Own Income	Head
1910	John B Dunn		Hill, Texas	Arkansas	Physician	Head
1940	John J. Dunn	63	Bergen-County, New Jersey	New York	—	Head
1940	John Dunn	54	Kings-County, New York	Ireland	Labor	Head
1910	John C Dunn		Ballard, Kentucky	Tennessee	Farmer	Head
1930	John Dunn		St Louis, Missouri	Missouri	Machinist	Head
1930	John Dunn		New York, New York	Ireland	Truck Driver	Head
1940	John Dunn	48	Sebastian-County, Arkansas	Arkansas	Miner	Head
1940	John Dunn	46	Nassau-County, New York	Ireland	Groom	Head
1920	John W Dunn		Douglas, Kansas	Rhode Island	Farmer	Head
1940	John M. Dunn	57	Middlesex-County, Massachusetts	Scotland	Clerk	Head

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About John Dunn US Census Records & Model Tree

We've indexed 19482 free, proprietary US Census records for John Dunn 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 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 19482 US Census records for John Dunn, from 1900 to 1950, across 50 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 Dunn'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 Dunn 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 Dunn 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.