How many James Larkin census records do you have?

We have 3735 US Census records for James Larkin, from 1900 to 1950, across 49 states, DC, and 1 territory.

What's in a James Larkin census record?

You'll see James'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 James Larkin'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 James Larkin census records free?

Yes. All James Larkin 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 James Larkin?

We have James Larkin 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 James Larkin 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 James Larkin?

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.

James Larkin — US Census Records & Model Tree

We found 3735 free census records for James Larkin across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 746 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

James Larkin Census Records by State & County

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Showing of 3735 records for James Larkin US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	James Larkin		Leavenworth, Kansas	Kansas	Clerk	Son
1940	James Larkin	27	Kings-County, New York	New York	Sanitation	Son
1940	James Larkin	22	Cook-County, Illinois	Illinois	Delivery	Son
1940	James Larkin	22	Luzerne-County, Pennsylvania	Pennsylvania	—	Son
1940	James Larkin	53	Hamilton-County, Ohio	Ohio	Planer Hand	Head
1940	James Larkin	56	St.-Louis-County, Missouri	Tennessee	Repair Man	Head
1920	James Larkin		New York, New York	Ireland	Porter	Head
1930	James Larkin		New York, New York	New York	Salesman	Son
1910	James Larkin		Fayette, Kentucky	Kentucky	Farm Laborer	Son
1930	James Larkin		Bergen, New Jersey	New Jersey	—	Son
1930	James Larkin		Hudson, New Jersey	New Jersey	—	Son
1920	James J. Jr. Larkin		Allegheny, Pennsylvania	Pennsylvania	Laborer	Son
1940	James C. Larkin	52	Davidson-County, Tennessee	Tennessee	Laborer	Head
1940	James Larkin	13	Sumter-County, Alabama	Alabama	25	Son
1910	James Larkin		New York, New York	New York	Helper	Son
1940	James R Larkin	43	Baldwin-County, Georgia	Georgia	Operates Farm	Head
1940	James A. Larkin	18	Philadelphia-County, Pennsylvania	Pennsylvania	—	Son
1920	James Larkin		Westchester, New York	New York	—	Son
1920	James Larkin		Lucas, Ohio	Ohio	—	Son
1920	James Larkin		Philadelphia, Pennsylvania	Pennsylvania	—	Son
1940	James Larkin	18	Queens-County, New York	New York	New Worker	Son
1940	James R. Larkin	15	Davidson-County, Tennessee	Tennessee	—	Son
1930	James B Larkin		Mclean, Illinois	Illinois	Laborer	Son
1940	James Larkin	13	Wayne-County, Michigan	Michigan	—	Son
1940	James C. Larkin	19	Valley-County, Idaho	Colorado	Ratchet Setter	Son
1940	James Larkin	19	Hudson-County, New Jersey	New Jersey	—	Son
1940	James Larkin	53	Hudson-County, New Jersey	New Jersey	Clerk	Head
1930	James Larkin		Suffolk, Massachusetts	Massachusetts	—	Son
1930	James M. Larkin		Suffolk, Massachusetts	England	Foreman	Head
1920	James A Larkin		Richmond, New York	New York	Dispatcher	Head

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About James Larkin US Census Records & Model Tree

We've indexed 3735 free, proprietary US Census records for James Larkin across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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 James 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 3735 US Census records for James Larkin, from 1900 to 1950, across 49 states, DC, and 1 territory.
: You'll see James'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 James Larkin'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 James Larkin 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 James Larkin 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.