How many John Joyce census records do you have?

We have 4733 US Census records for John Joyce, from 1900 to 1950, across 49 states and DC.

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

Yes. All John Joyce 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 Joyce?

We have John Joyce 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 Joyce 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 Joyce?

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 Joyce — US Census Records & Model Tree

We found 4733 free census records for John Joyce across 6 census years (1900–1950), in 49 states and DC and 548 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 4733 records for John Joyce US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John F. Joyce	34	Allegheny-County, Pennsylvania	Pennsylvania	Gardner	Head
1940	John J. Joyce	26	Cook-County, Illinois	Illinois	Watchman	Son
1940	John Joyce	21	Worcester-County, Massachusetts	Massachusetts	File Cutter	Head
1940	John E. Joyce	24	Hampshire-County, Massachusetts	Massachusetts	Clerk	Son
1940	John J Joyce	59	Cuyahoga-County, Ohio	Ireland	Steamfitter	Head
1920	John J Joyce		Allegheny, Pennsylvania	Ireland	Cutter	Head
1940	John Joyce	58	Sangamon-County, Illinois	England	Miner	Head
1930	John Joyce		Kings, New York	Ireland	Laborer	Head
1940	John E Joyce	65	Suffolk-County, Massachusetts	Newfoundland	Superintendent	Head
1940	John Joyce	64	Fremont-County, Colorado	Virginia	Road Overseer	Head
1940	John D. Joyce	70	Middlesex-County, Massachusetts	Massachusetts	—	Head
1940	John P. Joyce	57	Black-Hawk-County, Iowa	Iowa	Carpenter	Head
1930	John Joyce		None, Missouri	Ireland	Laborer	Head
1920	John Joyce		Philadelphia, Pennsylvania	Ireland	—	Head
1940	John Joyce	19	Suffolk-County, Massachusetts	Massachusetts	—	Son
1910	John Joyce		Worcester, Massachusetts	Ireland	—	Head
1940	John Joyce	24	Allegheny-County, Pennsylvania	Pennsylvania	Truck Driver	Son
1910	John Joyce		Philadelphia, Pennsylvania	Ireland	Roundhouseman	Head
1940	John Joyce	16	Westmoreland-County, Pennsylvania	Pennsylvania	—	Son
1910	John J. Joyce		Cook, Illinois	Ireland	Freight Handler	Head
1940	John C. Joyce	63	Westmoreland-County, Pennsylvania	Ireland	Carpenter	Head
1930	John H Joyce		Hillsborough, New Hampshire	New Hampshire	Laborer	Head
1940	John Joyce	34	Cook-County, Illinois	Illinois	Laborer	Head
1910	John E. Joyce		Bristol, Massachusetts	Connecticut	Farm Laborer	Son
1940	John Joyce	16	Allegheny-County, Pennsylvania	Pennsylvania	—	Son
1940	John Joyce	24	Bronx-County, New York	New York	Shipping Clerk	Son
1940	John Joyce	25	Delaware-County, Pennsylvania	Pennsylvania	Shipfitter	Son
1920	John J. Joyce		Northumberland, Pennsylvania	Ohio	Teacher	Head
1910	John J. Joyce		Worcester, Massachusetts	Ireland	Fireman	Head
1940	John R. Joyce	42	Allegheny-County, Pennsylvania	Pennsylvania	40	Head

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About John Joyce US Census Records & Model Tree

We've indexed 4733 free, proprietary US Census records for John Joyce 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 4733 US Census records for John Joyce, 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 Joyce'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 Joyce 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 Joyce 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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