How many John Larson census records do you have?

We have 11440 US Census records for John Larson, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All John Larson 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 Larson?

We have John Larson records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find John Larson 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 Larson?

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 Larson — US Census Records & Model Tree

We found 11440 free census records for John Larson across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1215 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Larson Census Records by State & County

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Showing of 11440 records for John Larson US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John Larson		Mcpherson, Kansas	Kansas	Farmer	Head
1930	John Larson		Pierce, Washington	Washington	Cadie	Son
1940	John W. Larson	30	Essex-County, New Jersey	New Jersey	Painter	Head
1930	John F Larson		Mcpherson, Kansas	Kansas	—	Son
1940	John A. Larson	24	Knox-County, Illinois	Illinois	Farmer	Head
1930	John Jr. Larson		Fergus, Montana	Montana	Laborer	Son
1940	John Larson	36	Rock-Island-County, Illinois	Illinois	Assembler	Head
1940	John Larson	22	Sullivan-County, Indiana	Indiana	Bus Driver	Son
1930	John E Larson		Multnomah, Oregon	Oregon	Lithographer	Son
1940	John P. Larson	69	St.-Louis-County, Missouri	Sweden	Proprietor	Head
1940	John Larson	54	Fillmore-County, Nebraska	Nebraska	Farmer	Head
1930	John Larson		Marquette, Michigan	Finland	Laborer	Head
1920	John A. Larson		Hennepin, Minnesota	Norway	Clerk	Head
1930	John M Larson		Sanpete, Utah	Utah	Farmer	Head
1920	John F. Larson		Rock Island, Illinois	Sweden	—	Head
1920	John R. Larson		Washington, Minnesota	Sweden	Farmer	Head
1940	John H. Larson	54	Smith-County, Kansas	Kansas	Farmer	Head
1940	John L. Larson	70	Los-Angeles-County, California	Sweden	Grocery Clerk	Head
1940	John F. Larson	53	Audubon-County, Iowa	Iowa	Farming	Head
1930	John Larson		Whatcom, Washington	Washington	Laborer	Son
1910	John Larson		Wexford, Michigan	Norway	Laborer	Head
1930	John Paul Larson		St Louis, Missouri	Missouri	—	Son
1930	John Larson		Hennepin, Minnesota	Minnesota	—	Son
1910	John L. Larson		Hamilton, Iowa	Norway	Farmer	Head
1900	John Larson	27	Salt Lake, Utah	Utah	Blacksmith	Son
1930	John C Larson		Lynn, North Dakota	Denmark	Farmer	Head
1920	John Larson		New York, New York	New York	Helper	Son
1930	John C. Larson		Roberts, South Dakota	Denmark	Farmer	Head
1940	John Larson	18	Jackson-County, Missouri	Missouri	Laborer	Son
1910	John Larson		Todd, Minnesota	Norway	Farmer	Head

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About John Larson US Census Records & Model Tree

We've indexed 11440 free, proprietary US Census records for John Larson across 1900–1950, covering 50 states, DC, and 1 territory: 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, 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 11440 US Census records for John Larson, from 1900 to 1950, across 50 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 Larson'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 Larson 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 Larson records from the 1900 through 1950 US Federal Census, across 50 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 Larson US Census Records

Albert Larson Alice Larson Andrew Larson Anna Larson Arthur Larson Carl Larson Charles Larson Emma Larson George Larson Louis Larson Mary Larson Oscar Larson Robert Larson Ruth Larson William Larson

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