How many Helen Campbell census records do you have?

We have 6453 US Census records for Helen Campbell, from 1900 to 1950, across 50 states, DC, and 1 territory.

What's in a Helen Campbell 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 Campbell'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 Campbell census records free?

Yes. All Helen Campbell 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 Campbell?

We have Helen Campbell 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 Helen Campbell 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 Campbell?

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 Campbell — US Census Records & Model Tree

We found 6453 free census records for Helen Campbell across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1199 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Helen Campbell Census Records by State & County

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Showing of 6453 records for Helen Campbell US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Helen Campbell	36	Polk-County, Iowa	Iowa	Proprietor	Daughter
1930	Helen Campbell		Macomb, Michigan	Michigan	—	Daughter
1930	Helen M. Campbell		Dauphin, Pennsylvania	Pennsylvania	Stenographer	Daughter
1940	Helen Campbell	20	Raleigh-County, West Virginia	West Virginia	Clerk	Daughter
1910	Helen Campbell		Hamilton, Ohio	Ohio	—	Daughter
1940	Helen Campbell	30	Middlesex-County, Massachusetts	Massachusetts	Registered Nurse	Daughter
1930	Helen M. Campbell		Whatcom, Washington	Washington	Teacher	Daughter
1940	Helen Campbell	32	Cleveland-County, North Carolina	North Carolina	—	Daughter
1940	Helen Mae Campbell	23	Essex-County, New Jersey	New York	Clerk	Daughter
1940	Helen Campbell	26	Luzerne-County, Pennsylvania	Pennsylvania	—	Wife
1940	Helen Campbell	24	New-York-County, New York	New York	—	Head
1940	Helen Louise Campbell	34	Denver-County, Colorado	Colorado	Examiner	Daughter
1920	Helen S Campbell		Suffolk, Massachusetts	Massachusetts	Stenographer	Daughter
1940	Helen Campbell	33	Craig-County, Oklahoma	Oklahoma	Secretary	Daughter
1920	Helen C. Campbell		Union, New Jersey	Scotland	—	Wife
1930	Helen Campbell		Northampton, Pennsylvania	Maryland	None	Wife
1940	Helen Campbell	26	Lancaster-County, Pennsylvania	Pennsylvania	House Wife	Wife
1940	Helen Campbell	26	Blount-County, Alabama	Alabama	—	Daughter
1940	Helen Campbell	20	Laurens-County, South Carolina	South Carolina	Farm Laborer	Daughter
1940	Helen R Campbell	12	Worcester-County, Massachusetts	Massachusetts	—	Daughter
1940	Helen Campbell	15	Washtenaw-County, Michigan	Michigan	—	Daughter
1930	Helen Campbell		Gaston, North Carolina	North Carolina	—	Daughter
1940	Helen Campbell	10	Forsyth-County, North Carolina	North Carolina	—	Daughter
1940	Helen Campbell	11	Hudson-County, New Jersey	New Jersey	—	Daughter
1920	Helen J. Campbell		Union, Pennsylvania	Pennsylvania	—	Daughter
1940	Helen Campbell	11	Bossier-County, Louisiana	Louisiana	—	Daughter
1930	Helen Campbell		Charleston, South Carolina	South Carolina	—	Daughter
1940	Helen Campbell	33	Philadelphia-County, Pennsylvania	Pennsylvania	Secretary	Daughter
1940	Helen Campbell	18	Suffolk-County, Massachusetts	Massachusetts	Switchboard Operator	Daughter
1920	Helen Campbell		Kitsap, Washington	Alaska	—	Daughter

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About Helen Campbell US Census Records & Model Tree

We've indexed 6453 free, proprietary US Census records for Helen Campbell across 1900–1950, covering 50 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 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 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 6453 US Census records for Helen Campbell, from 1900 to 1950, across 50 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 Campbell'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 Campbell 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 Campbell 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.