How many John Flanagan census records do you have?

We have 4446 US Census records for John Flanagan, from 1900 to 1950, across 50 states and DC.

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

Yes. All John Flanagan 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 Flanagan?

We have John Flanagan 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 Flanagan 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 Flanagan?

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 Flanagan — US Census Records & Model Tree

We found 4446 free census records for John Flanagan across 6 census years (1900–1950), in 50 states and DC and 689 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Flanagan 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 4446 records for John Flanagan US Census, ranked by Model Tree richness

No records match your filters.

Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John T. Flanagan	20	Franklin-County, Ohio	Ohio	Mechanic	Son
1940	John Flanagan	24	Bronx-County, New York	New York	Gas Attendant	Son
1930	John Flanagan		Essex, Massachusetts	Massachusetts	Operative	Son
1940	John Milton Flanagan	23	Washington-County, Texas	Texas	Farm Laborer	Son
1940	John Jr Flanagan	21	Jefferson-County, Texas	Texas	New Worker	Son
1940	John J. Flanagan	22	Middlesex-County, Massachusetts	Massachusetts	Cooler Man	Son
1940	John Flanagan	27	Albany-County, New York	New York	Jr. Clerk	Son
1940	John Flanagan	31	Essex-County, New Jersey	New Jersey	Grinder	Son
1930	John R Flanagan		Montgomery, Ohio	Ohio	Newsboy	Son
1940	John Flanagan	62	Delaware-County, Iowa	Iowa	Carpenter	Son
1920	John Flanagan		Hudson, New Jersey	New Jersey	Laborer	Son
1940	John B. Jr. Flanagan	29	Rutland-County, Vermont	Vermont	Clerk	Son
1920	John P Flanagan		Hamilton, Illinois	Illinois	Farmer	Head
1900	John J Flanagan	41	Hennepin, Minnesota	Ireland	Rr Fireman	Head
1940	John Flanagan	74	New-York-County, New York	Ireland	Elevator Operator	Head
1900	John J. Flanagan	32	Middlesex, Massachusetts	Ireland	Coachman	Head
1930	John Flanagan		Brown, Wisconsin	Wisconsin	City Sealer	Head
1940	John Flanagan	74	Cook-County, Illinois	Ireland	—	Head
1940	John B. Sr. Flanagan	61	Rutland-County, Vermont	Vermont	Postmaster	Head
1940	John E. Flanagan	58	Waupaca-County, Wisconsin	Wisconsin	Farmer	Head
1930	John Flanagan		Essex, Massachusetts	New Hampshire	Operative	Son
1940	John Flanagan	29	Atlantic-County, New Jersey	New Jersey	Laborer	Son
1930	John Flanagan		San Francisco, California	California	—	Son
1930	John Flanagan		Essex, New Jersey	New Jersey	—	Son
1930	John Flanagan		Kings, New York	New York	—	Son
1940	John Flanagan	50	Middlesex-County, Massachusetts	New York	Landscape Gardener	Head
1910	John W Flanagan		Fayette, Iowa	Iowa	Farm Laborer	Son
1910	John P Flanagan		Philadelphia, Pennsylvania	England	Structural Iron	Head
1930	John Flanagan		Kings, New York	New York	Salesman	Son
1930	John J. Flanagan		Windham, Connecticut	Massachusetts	Truck Driver	Son

Load More John Flanagan Census Records

About John Flanagan US Census Records & Model Tree

We've indexed 4446 free, proprietary US Census records for John Flanagan 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 4446 US Census records for John Flanagan, 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 Flanagan'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 Flanagan 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 Flanagan 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.

Other Flanagan US Census Records

James Flanagan Mary Flanagan

All Flanagan census records →

Browse More Surnames

Finney Fischer Fisher Fitzgerald Fitzpatrick Flaherty Fleming Fletcher Flowers Floyd Flynn Foley

← Back to US Census Records