How many John Laughlin census records do you have?

We have 3633 US Census records for John Laughlin, from 1900 to 1950, across 49 states, DC, and 1 territory.

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

Yes. All John Laughlin 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 Laughlin?

We have John Laughlin 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 Laughlin 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 Laughlin?

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 Laughlin — US Census Records & Model Tree

We found 3633 free census records for John Laughlin across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 879 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Laughlin Census Records by State & County

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Showing of 3633 records for John Laughlin US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John W Laughlin		Ashtabula, Ohio	Ohio	—	Son
1930	John Laughlin		Bronx, New York	New York	Bricklayer	Son
1930	John Laughlin		Kings, New York	New York	Office Boy	Son
1940	John F Jr Laughlin	21	Douglas-County, Kansas	Kansas	Farm Helper	Son
1920	John Laughlin		Logan, Ohio	Ohio	—	Son
1930	John Laughlin		Allegheny, Pennsylvania	Pennsylvania	Roll Turner	Head
1930	John Laughlin		Northumberland, Pennsylvania	Pennsylvania	Laborer	Head
1940	John Laughlin	25	Pickaway-County, Ohio	Ohio	0	Son
1940	John T. Laughlin	22	Sherman-County, Kansas	Kansas	Farm Helper	Son
1910	John F. Laughlin		Randolph, North Carolina	North Carolina	Farmer	Head
1940	John J. Laughlin	53	Jackson-County, Michigan	Michigan	Machinist	Head
1940	John F Laughlin	54	Douglas-County, Kansas	North Carolina	Farmer	Head
1920	John Laughlin		Alameda, California	Ireland	Salesman	Head
1930	John Laughlin		Allegheny, Pennsylvania	Pennsylvania	Laborer	Head
1940	John T. Laughlin	62	Sullivan-County, Indiana	Indiana	Proprietor	Head
1940	John Laughlin	69	Warren-County, Illinois	Illinois	Farmer	Head
1940	John Laughlin	67	Greene-County, Tennessee	Tennessee	Farmer	Head
1930	John Laughlin		Lucas, Ohio	Ohio	Laborer	Son
1930	John Laughlin		Palo Alto, Iowa	Iowa	Book-Keeper	Son
1920	John Laughlin		New York, New York	New York	Yes	Son
1910	John Laughlin		New York, New York	Ireland	Truck	Head
1940	John C Laughlin	17	Nodaway-County, Missouri	Missouri	S	Son
1930	John Laughlin		Black Hawk, Iowa	Iowa	Laborer	Son
1940	John Laughlin	55	Middlesex-County, Massachusetts	Irish Free State	Driver	Head
1930	John Laughlin		St Louis, Missouri	Missouri	—	Son
1930	John Laughlin		Queens, New York	New York	Salesman	Head
1910	John Laughlin		Essex, New Jersey	Ireland	Farmer	Head
1940	John Laughlin	51	Hudson-County, New Jersey	New Jersey	C.O.D. Clerk	Head
1930	John Laughlin		Suffolk, Massachusetts	Massachusetts	—	Son
1940	John Laughlin	17	Hudson-County, New Jersey	New Jersey	—	Son

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About John Laughlin US Census Records & Model Tree

We've indexed 3633 free, proprietary US Census records for John Laughlin across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, 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, Puerto Rico, 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 3633 US Census records for John Laughlin, 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 Laughlin'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 Laughlin 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 Laughlin 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.

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