How many Clarence Campbell census records do you have?

We have 2964 US Census records for Clarence Campbell, from 1900 to 1950, across 49 states and DC.

What's in a Clarence Campbell census record?

You'll see Clarence'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 Clarence 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 Clarence Campbell census records free?

Yes. All Clarence 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 Clarence Campbell?

We have Clarence Campbell records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters to narrow your results.

How do I find Clarence 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 Clarence 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.

Clarence Campbell — US Census Records & Model Tree

We found 2964 free census records for Clarence Campbell across 6 census years (1900–1950), in 49 states and DC and 1003 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Clarence Campbell Census Records by State & County

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Showing of 2964 records for Clarence Campbell US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Clarence Campbell		Middlesex, New Jersey	New Jersey	—	Son
1930	Clarence Campbell		Archer, Texas	Texas	Farm Laborer	Son
1940	Clarence C. Campbell	31	Shelby-County, Iowa	Iowa	Farmer	Head
1940	Clarence Campbell	27	Crawford-County, Iowa	Iowa	Farm Helper	Son
1940	Clarence Campbell	32	Logan-County, Oklahoma	Oklahoma	Farm Laborer	Son
1920	Clarence Campbell		Clinton, Pennsylvania	Pennsylvania	Repairer	Son
1940	Clarence Campbell	21	Bayfield-County, Wisconsin	Wisconsin	Helper	Son
1940	Clarence J. Campbell	23	Polk-County, Iowa	Iowa	Baker	Head
1940	Clarence E. Campbell	47	Guernsey-County, Ohio	Ohio	Miner	Head
1940	Clarence Campbell	57	Tulsa-County, Oklahoma	Tennessee	Attorney	Head
1940	Clarence Campbell	67	Meade-County, Kentucky	Kentucky	Farmer	Head
1940	Clarence A Campbell	56	Multnomah-County, Oregon	New York	Painter And Carpenter	Head
1940	Clarence Campbell	55	Vernon-County, Missouri	Missouri	Merchant	Head
1940	Clarence Campbell	53	Boone-County, Iowa	Illinois	Farmer	Head
1940	Clarence Campbell	63	Vermillion-County, Indiana	Indiana	Merchant	Head
1940	Clarence Campbell	13	Hughes-County, Oklahoma	Oklahoma	—	Son
1940	Clarence Campbell	15	Taylor-County, Kentucky	Kentucky	Laborer	Son
1940	Clarence Campbell	41	Livingston-County, New York	New York	Clerk	Head
1940	Clarence Campbell	16	Moore-County, North Carolina	North Carolina	Farmer	Son
1940	Clarence F. Campbell	12	Clearwater-County, Minnesota	Minnesota	—	Son
1940	Clarence M Campbell	10	Stephenson-County, Illinois	Illinois	—	Son
1930	Clarence R Campbell		Butler, Pennsylvania	Pennsylvania	Miner	Head
1930	Clarence Campbell		Vermilion, Louisiana	Louisiana	Farmer	Head
1940	Clarence W. Campbell	13	Liberty-County, Texas	Texas	—	Son
1940	Clarence Campbell	11	Wood-County, West Virginia	West Virginia	—	Son
1940	Clarence Campbell	17	Claiborne-County, Tennessee	Tennessee	Farmer	Son
1940	Clarence Campbell	43	Putnam-County, Missouri	Missouri	Farmer	Head
1940	Clarence Campbell	35	Clermont-County, Ohio	Kentucky	Welder	Head
1920	Clarence L Campbell		Boone, Arkansas	Arkansas	—	Son
1920	Clarence H Campbell		Carbon, Pennsylvania	PENNSYLVANIA	—	Son

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About Clarence Campbell US Census Records & Model Tree

We've indexed 2964 free, proprietary US Census records for Clarence Campbell across 1900–1950, covering 49 states and DC: Alabama, 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, 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 Clarence 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 2964 US Census records for Clarence Campbell, from 1900 to 1950, across 49 states and DC.
: You'll see Clarence'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 Clarence 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 Clarence 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 Clarence Campbell records from the 1900 through 1950 US Federal Census, across 49 states and DC. 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.