How many John Byrne census records do you have?

We have 5073 US Census records for John Byrne, from 1900 to 1950, across 49 states and DC.

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

Yes. All John Byrne 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 Byrne?

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

How do I find John Byrne 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 Byrne?

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 Byrne — US Census Records & Model Tree

We found 5073 free census records for John Byrne across 6 census years (1900–1950), in 49 states and DC and 607 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Byrne Census Records by State & County

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Showing of 5073 records for John Byrne US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Byrne	25	Essex-County, New Jersey	New Jersey	Airplane Machinist	Head
1940	John Byrne	35	Bronx-County, New York	Ireland	Truck Operator	Head
1940	John Byrne	27	Ramsey-County, Minnesota	Michigan	Salesman	Son
1910	John Byrne		New York, New York	Ireland	Broker	Head
1940	John Byrne	55	Wayne-County, Michigan	Canada	Patrolman	Head
1920	John P. Byrne		Philadelphia, Pennsylvania	Ireland	Engineer	Head
1930	John Byrne		Bronx, New York	Ireland	Driver	Head
1920	John M. Byrne		Queens, New York	New York	Printer	Head
1940	John Byrne	66	Philadelphia-County, Pennsylvania	Ireland	Operator	Head
1920	John Byrne		None, New York	Ireland	Supt.	Head
1940	John C. Byrne	51	Olmsted-County, Minnesota	South Dakota	Registered Nurse	Head
1940	John Byrne	40	Bronx-County, New York	New York	Inspector	Head
1940	John Byrne	30	New-Haven-County, Connecticut	England	Truck Dispatcher	Husband
1940	John H. Byrne	47	St.-Louis-City-County, Missouri	Missouri	Dentist	Head
1940	John H., Jr. Byrne	20	St.-Louis-City-County, Missouri	Missouri	—	Son
1940	John R. Byrne	10	Wayne-County, Michigan	Michigan	—	Son
1940	John M. Byrne	27	Middlesex-County, Massachusetts	Massachusetts	Chauffeur	Son
1920	John Byrne		New York, New York	New York	Clerk	Son
1930	John J. Byrne		Essex, New Jersey	Ireland	Ice Man	Head
1910	John A Byrne		New Castle, Delaware	Delaware	Apprentice	Son
1910	John F. Byrne		Middlesex, Massachusetts	Ireland	Proprietor	Head
1920	John P Byrne		Sarpy, Nebraska	Pennsylvania	Laborer	Head
1940	John Byrne	17	Hudson-County, New Jersey	New Jersey	—	Son
1930	John Byrne		New York, New York	New York	None	Son
1940	John Byrne	17	Allegany-County, Maryland	Maryland	New Worker	Son
1930	John D Byrne		Daviess, Kentucky	Kentucky	Farmer	Son
1930	John Byrne		Schenectady, New York	New York	—	Son
1940	John Byrne	16	Philadelphia-County, Pennsylvania	Pennsylvania	—	Son
1930	John Byrne		Hudson, New Jersey	New Jersey	—	Son
1900	John J Byrne	43	New York, New York	New York	Machinist	Head

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About John Byrne US Census Records & Model Tree

We've indexed 5073 free, proprietary US Census records for John Byrne across 1900–1950, covering 49 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, 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 5073 US Census records for John Byrne, from 1900 to 1950, across 49 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 Byrne'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 Byrne 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 Byrne records from the 1900 through 1950 US Federal Census, across 49 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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