How many Helen Carlson census records do you have?

We have 2978 US Census records for Helen Carlson, from 1900 to 1950, across 45 states, DC, and 1 territory.

What's in a Helen Carlson census record?

You'll see Helen'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 Helen Carlson'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 Helen Carlson census records free?

Yes. All Helen Carlson 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 Helen Carlson?

We have Helen Carlson records from the 1900 through 1950 US Federal Census, across 45 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find Helen Carlson 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 Helen Carlson?

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.

Helen Carlson — US Census Records & Model Tree

We found 2978 free census records for Helen Carlson across 6 census years (1900–1950), in 45 states, DC, and 1 territory and 540 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Helen Carlson Census Records by State & County

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Showing of 2978 records for Helen Carlson US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	Helen L. Carlson		Worcester, Massachusetts	Massachusetts	—	Daughter
1930	Helen T. Carlson		Douglas, Nebraska	Nebraska	Operator	Daughter
1930	Helen Carlson		Cook, Illinois	Illinois	Stenographer	Daughter
1930	Helen M. Carlson		Des Moines, Iowa	Iowa	—	Daughter
1940	Helen Carlson	22	Yakima-County, Washington	Nebraska	—	Daughter
1940	Helen C Carlson	23	Cayuga-County, New York	New York	Secretary	Daughter
1940	Helen Carlson	27	Wayne-County, Michigan	Michigan	—	Wife
1940	Helen Carlson	36	Polk-County, Iowa	Iowa	Housewife	Wife
1940	Helen Carlson	32	Henry-County, Illinois	Illinois	Teacher	Daughter
1940	Helen L. Carlson	24	Polk-County, Iowa	Iowa	Bookkeeper	Daughter
1940	Helen E. Carlson	32	Cook-County, Illinois	Illinois	Secretary	Wife
1940	Helen Carlson	27	Winnebago-County, Illinois	Illinois	Clerk	Wife
1940	Helen Carlson	32	Pierce-County, Washington	Washington	—	Wife
1940	Helen Carlson	26	Chautauqua-County, New York	New York	Receptionist	Daughter
1940	Helen Carlson	25	Suffolk-County, Massachusetts	Massachusetts	Maid	Daughter
1930	Helen, A. Carlson		Marquette, Michigan	Michigan	—	Wife
1940	Helen O. Carlson	52	Polk-County, Iowa	Iowa	—	Wife
1940	Helen Carlson	46	Nassau-County, New York	Sweden	—	Wife
1940	Helen Carlson	49	Kings-County, New York	Norway	—	Wife
1930	Helen Carlson		Dekalb, Illinois	Illinois	—	Wife
1920	Helen M. Carlson		Worcester, Massachusetts	Finland	—	Wife
1930	Helen E. Carlson		King, Washington	Sweden	None	Wife
1940	Helen H Carlson	55	Dallas-County, Texas	Missouri	Supervisor	Head
1930	Helen Carlson		Concho, Texas	Texas	—	Daughter
1930	Helen Carlson		Boone, Iowa	Iowa	None	Daughter
1930	Helen Carlson		Dickinson, Michigan	Michigan	—	Daughter
1930	Helen V. Carlson		Douglas, Wisconsin	Wisconsin	—	Daughter
1940	Helen Carlson	23	Hennepin-County, Minnesota	Minnesota	Clerk	Daughter
1940	Helen Carlson	23	Erie-County, Pennsylvania	Pennsylvania	Sr. Typist - Stenographer	Daughter
1920	Helen Carlson		Aitkin, Minnesota	Minnesota	None	Daughter

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About Helen Carlson US Census Records & Model Tree

We've indexed 2978 free, proprietary US Census records for Helen Carlson across 1900–1950, covering 45 states, DC, and 1 territory: Alabama, Alaska, Arizona, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, 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 Helen 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 2978 US Census records for Helen Carlson, from 1900 to 1950, across 45 states, DC, and 1 territory.
: You'll see Helen'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 Helen Carlson'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 Helen Carlson 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 Helen Carlson records from the 1900 through 1950 US Federal Census, across 45 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 Carlson US Census Records

Albert Carlson Alice Carlson Anna Carlson Arthur Carlson Carl Carlson Charles Carlson Edward Carlson Emma Carlson Esther Carlson George Carlson John Carlson Mary Carlson Oscar Carlson Robert Carlson Ruth Carlson William Carlson

All Carlson census records →

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