How many John Dolan census records do you have?

We have 5131 US Census records for John Dolan, from 1900 to 1950, across 49 states, DC, and 1 territory.

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

Yes. All John Dolan 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 Dolan?

We have John Dolan records from the 1900 through 1950 US Federal Census, across 49 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find John Dolan 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 Dolan?

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 Dolan — US Census Records & Model Tree

We found 5131 free census records for John Dolan across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 600 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Dolan 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 5131 records for John Dolan US Census, ranked by Model Tree richness

No records match your filters.

Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	John Dolan		New York, New York	Ireland	Foreman	Head
1940	John Dolan	64	New-York-County, New York	Ireland	Drainage Supt.	Head
1920	John Dolan		Suffolk, Massachusetts	Ireland	Laborer	Head
1940	John Dolan	51	Allegheny-County, Pennsylvania	Scotland	Laborer	Head
1940	John Dolan	76	Adair-County, Iowa	Iowa	Farmer	Head
1940	John Dolan	54	St.-Louis-City-County, Missouri	Ireland	—	Head
1940	John F. Dolan	13	Redwood-County, Minnesota	Minnesota	—	Son
1940	John O Dolan	50	Redwood-County, Minnesota	Minnesota	Farmer	Head
1920	John P Dolan		Genesee, Michigan	Michigan	—	Son
1920	John Dolan		Essex, New Jersey	New Jersey	Housewife	Son
1910	John Dolan		Middlesex, New Jersey	Ireland	Laborer	Head
1940	John A Dolan	16	Middlesex-County, Massachusetts	Massachusetts	New Worker	Son
1940	John J. Dolan	56	Hudson-County, New Jersey	Scotland	Laborer	Head
1920	John Dolan		New York, New York	Ireland	Laborer	Head
1910	John Dolan		Haverhill, Massachusetts	Ireland	Laborer	Head
1920	John Dolan		Middlesex, Massachusetts	Massachusetts	—	Son
1910	John Dolan		Essex, New Jersey	Ireland	Carpenter	Head
1940	John Sr. Dolan	64	Westmoreland-County, Pennsylvania	England	Painter Paperhanger	Head
1940	John Dolan	14	Hudson-County, New Jersey	New Jersey	—	Son
1940	John Dolan	19	Westchester-County, New York	South Carolina	—	Son
1940	John M. Dolan	14	Richmond-City-County, Virginia	Virginia	—	Son
1930	John Dolan		Middlesex, New Jersey	New Jersey	Laborer	Head
1930	John Dolan		Hudson, New Jersey	New Jersey	—	Son
1920	John Dolan		Allegheny, Pennsylvania	Pennsylvania	—	Son
1940	John Dolan	14	Lackawanna-County, Pennsylvania	Pennsylvania	—	Son
1940	John Dolan	22	Cook-County, Illinois	Illinois	Bookkeeper	Son
1920	John J. Dolan		Essex, Massachusetts	Massachusetts	Machinist	Son
1940	John Dolan	18	Worcester-County, Massachusetts	Massachusetts	—	Son
1940	John T Dolan	19	Chesterfield-County, Virginia	Virginia	Truck Worker	Son
1940	John B Dolan	13	York-County, Maine	Massachusetts	—	Son

Load More John Dolan Census Records

About John Dolan US Census Records & Model Tree

We've indexed 5131 free, proprietary US Census records for John Dolan across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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 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 5131 US Census records for John Dolan, from 1900 to 1950, across 49 states, DC, and 1 territory.
: 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 Dolan'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 Dolan 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 Dolan records from the 1900 through 1950 US Federal Census, across 49 states, DC, and 1 territory. 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 Dolan US Census Records

James Dolan Mary Dolan

All Dolan census records →

Browse More Surnames

Devine Dickerson Dickson Dillon Dixon Doherty Donahue Donaldson Donnelly Donohue Donovan Dooley

← Back to US Census Records