How many William Clarke census records do you have?

We have 4605 US Census records for William Clarke, from 1900 to 1950, across 50 states, DC, and 1 territory.

What's in a William Clarke census record?

You'll see William'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 William 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 William Clarke census records free?

Yes. All William 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 William Clarke?

We have William Clarke 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 William 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 William 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.

William Clarke — US Census Records & Model Tree

We found 4605 free census records for William Clarke across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 903 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Clarke Census Records by State & County

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Showing of 4605 records for William Clarke US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1900	William Clarke	9	Jefferson, Kansas	Kansas	—	Son
1940	William Clarke	24	Camden-County, New Jersey	New Jersey	Laborer	Son
1930	William H. Clarke		Newport, Rhode Island	Rhode Island	Merchant	Head
1940	William Clarke	49	Monroe-County, New York	England	Farmer	Head
1920	William E Clarke		Forrest, Mississippi	Alabama	Farming	Head
1930	William L. Clarke		None, District of Columbia	District of Columbia	Clerk	Head
1920	William M Clarke		Hall, Georgia	Georgia	Farm Operator	Head
1940	William Clarke	58	Providence-County, Rhode Island	England	Drill Hand	Head
1920	William M. Clarke		Harris, Texas	Texas	Burner	Head
1930	William Clarke		Cuyahoga, Ohio	Canada English	Foreman	Head
1930	William Clarke		Cuyahoga, Ohio	England	None	Son
1910	William D Clarke		Mercer, New Jersey	New Jersey	—	Son
1940	William Clarke	10	Grant-County, Wisconsin	Wisconsin	—	Son
1910	William H Clarke		New London, Connecticut	Rhode Island	Trucker	Head
1910	William Clarke		Philadelphia, Pennsylvania	England	Weaver	Head
1940	William A. Clarke	19	Los-Angeles-County, California	California	Laborer	Son
1920	William P Clarke		Miami, Kansas	Kansas	Manager	Head
1930	William Jr. Clarke		Lackawanna, Pennsylvania	Pennsylvania	—	Son
1910	William Clarke		Montgomery, Alabama	Alabama	Waiter	Son
1940	William Jr. Clarke	13	Suffolk-County, Massachusetts	Massachusetts	—	Son
1910	William M. Clarke		Lowndes, Mississippi	Mississippi	Traveling Salesman	Head
1930	William Jr Clarke		Franklin, Kentucky	Kentucky	None	Son
1910	William W Jr Clarke		Solano, California	California	—	Son
1930	William E. Clarke		King, Washington	Washington	—	Son
1910	William A Clarke		Essex, Massachusetts	England	Stock Keeper	Head
1940	William A. Clarke	20	St.-Louis-County, Missouri	Missouri	—	Son
1940	William Clarke	39	Baltimore-City-County, Maryland	Virginia	Laborer	Head
1920	William Clarke		Salem, New Jersey	Delaware	—	Son
1930	William Clarke		Berkeley, South Carolina	South Carolina	—	Son
1920	William L. Clarke		Santa Barbara, California	Nebraska	—	Son

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About William Clarke US Census Records & Model Tree

We've indexed 4605 free, proprietary US Census records for William Clarke 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, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, 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 William 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 4605 US Census records for William Clarke, from 1900 to 1950, across 50 states, DC, and 1 territory.
: You'll see William'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 William 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 William 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 William Clarke 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.