How many John Clarke census records do you have?

We have 5164 US Census records for John Clarke, from 1900 to 1950, across 50 states and DC.

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

Yes. All John Clarke 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 Clarke?

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

How do I find John Clarke 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 Clarke?

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 Clarke — US Census Records & Model Tree

We found 5164 free census records for John Clarke across 6 census years (1900–1950), in 50 states and DC and 1020 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Clarke Census Records by State & County

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Showing of 5164 records for John Clarke US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Clarke	37	Polk-County, Iowa	Missouri	Stationary Engineer	Head
1940	John Clarke	28	Worcester-County, Massachusetts	Massachusetts	Clerk	Son
1940	John W. Clarke	33	Jackson-County, Missouri	Missouri	Chemist	Head
1920	John E. Clarke		Frederick, Virginia	Virginia	Farmer	Head
1920	John F Clarke		Cook, Illinois	Ireland	Chauffeur	Head
1930	John Clarke		New York, New York	Ireland	Rigger	Head
1920	John Clarke		Wayne, Michigan	Scotland	Carpenter	Head
1940	John Clarke	56	Kings-County, New York	Ireland	Cableman	Head
1940	John H. Clarke	37	Alleghany-County, Virginia	Virginia	Caretaker	Head
1930	John Clarke		Baltimore, Maryland	Maryland	—	Son
1940	John R Clarke	20	Marion-County, Indiana	Indiana	Genner	Son
1910	John J. Clarke		New York, New York	Ireland	Messenger	Head
1930	John Clarke		Baltimore, Maryland	Maryland	—	Son
1930	John Clarke		Fairfield, Connecticut	England	Manager	Head
1900	John Clarke	31	Greenville, South Carolina	South Carolina	Farmer	Head
1940	John M. Clarke	19	Culpeper-County, Virginia	Virginia	Labor	Son
1940	John D. Clarke	44	Denver-County, Colorado	Colorado	Engineer	Head
1900	John Clarke	68	Inyo, California	England	Farmer	Head
1900	John J. Clarke	10	Baltimore, Maryland	Maryland	At School	Son
1900	John Clarke	34	Chesterfield, South Carolina	South Carolina	Farmer	Head
1910	John M Clarke		Madison, Arkansas	Kentucky	Farmer	Head
1920	John Clarke		Kemper, Mississippi	Mississippi	Farmer	Head
1940	John Clarke	55	Macon-County, Georgia	Georgia	Laborer	Head
1940	John Clarke	37	Kings-County, New York	New Jersey	Service Man	Head
1900	John E. Clarke	40	Dinwiddie, Virginia	North Carolina	Supervisor C.S.H	Head
1940	John W. Clarke	53	Coles-County, Illinois	Illinois	Plumber	Head
1930	John Clarke		Hudson, New Jersey	New Jersey	—	Son
1930	John C Clarke		Franklin, Kentucky	Kentucky	None	Son
1910	John Clarke		Midland, Michigan	England	Farmer	Head
1930	John W Jr Clarke		Montgomery, Pennsylvania	Maryland	—	Son

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About John Clarke US Census Records & Model Tree

We've indexed 5164 free, proprietary US Census records for John Clarke across 1900–1950, covering 50 states and DC: 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, 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 5164 US Census records for John Clarke, from 1900 to 1950, across 50 states and DC.
: 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 Clarke'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 Clarke 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 Clarke records from the 1900 through 1950 US Federal Census, across 50 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.