How many John Maguire census records do you have?

We have 3148 US Census records for John Maguire, from 1900 to 1950, across 47 states and DC.

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

Yes. All John Maguire 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 Maguire?

We have John Maguire records from the 1900 through 1950 US Federal Census, across 47 states and DC. Use the year and state filters to narrow your results.

How do I find John Maguire 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 Maguire?

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 Maguire — US Census Records & Model Tree

We found 3148 free census records for John Maguire across 6 census years (1900–1950), in 47 states and DC and 391 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Maguire Census Records by State & County

Records per state:

Census Record Search

First Name

Middle Name

Last Name (Required)

Census Year

State

Birth Year

Year Range

Birthplace

Age From

Age To

Exact match: Name Location Year

Alternate First Names (comma-separated)

Alternate Last Names (comma-separated)

County

Sex

Marital Status

Race

Relationship to Head

Occupation

Census Page ID

Family Members (in same household)

Search Records

Showing of 3148 records for John Maguire US Census, ranked by Model Tree richness

No records match your filters.

Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John A. Maguire	24	Philadelphia-County, Pennsylvania	Pennsylvania	Machine Opr	Son
1940	John Maguire	28	Denver-County, Colorado	Colorado	Chauffeur	Son
1940	John Maguire	41	Essex-County, Massachusetts	Vermont	Bookkeeper	Head
1940	John Maguire	29	Camden-County, New Jersey	New Jersey	Meat Cutter	Son
1920	John Maguire		Middlesex, Massachusetts	Ireland	Machinist	Head
1940	John Maguire	59	Kings-County, New York	Ireland	Salesman	Head
1940	John Maguire	50	Providence-County, Rhode Island	Rhode Island	—	Head
1940	John R. Maguire	59	Multnomah-County, Oregon	Oregon	Proprietor	Head
1940	John F. Maguire	67	Plymouth-County, Massachusetts	Massachusetts	Vice President	Head
1930	John Maguire		None, None	New York	None	Son
1930	John J. Maguire		Camden, New Jersey	New Jersey	—	Son
1940	John P. Maguire	54	New-Haven-County, Connecticut	England	Machinist	Head
1910	John Maguire		Philadelphia, Pennsylvania	Ireland	Foreman	Head
1930	John J Maguire		Camden, New Jersey	New Jersey	—	Son
1940	John Maguire	16	Cook-County, Illinois	Ohio	—	Son
1930	John Maguire		Kings, New York	New York	Clerk	Son
1930	John Maguire		Kings, New York	New York	—	Son
1910	John S. Maguire		Providence, Rhode Island	Rhode Island	Fireman	Head
1930	John J. Maguire		Middlesex, Massachusetts	Massachusetts	—	Son
1930	John Maguire		Androscoggin, Maine	Maine	Washer	Son
1930	John Maguire		Middlesex, Massachusetts	Massachusetts	Clerk	Son
1940	John Maguire	19	Bergen-County, New Jersey	New York	Shoe Salesman	Son
1910	John J Maguire		Newport, Rhode Island	Rhode Island	None	Son
1930	John F. Maguire		Cook, Illinois	Illinois	Salesman	Son
1940	John Maguire	41	Montgomery-County, Pennsylvania	Pennsylvania	Laborer	Head
1910	John Maguire		Hartford, Connecticut	Ireland	Clerk - Hotel	Head
1930	John W. Maguire		Indiana, Pennsylvania	Pennsylvania	Miner	Head
1940	John Jr. Maguire	22	Belmont-County, Ohio	Ohio	Mechanic	Son
1910	John Maguire		Philadelphia, Pennsylvania	Ireland	Iron Worker	Head
1940	John A. Maguire	50	Jefferson-County, Kentucky	Kentucky	Superintendent	Head

Load More John Maguire Census Records

About John Maguire US Census Records & Model Tree

We've indexed 3148 free, proprietary US Census records for John Maguire across 1900–1950, covering 47 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, New Hampshire, New Jersey, 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 3148 US Census records for John Maguire, from 1900 to 1950, across 47 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 Maguire'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 Maguire 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 Maguire records from the 1900 through 1950 US Federal Census, across 47 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.

Other Maguire US Census Records

Mary Maguire

All Maguire census records →

Browse More Surnames

Lyons Macdonald Mack Mackey Madden Magee Maher Mahoney Malone Maloney Mann Manning

← Back to US Census Records