How many William Carroll census records do you have?

We have 9247 US Census records for William Carroll, from 1900 to 1950, across 50 states and DC.

What's in a William Carroll 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 Carroll'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 Carroll census records free?

Yes. All William Carroll 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 Carroll?

We have William Carroll 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 William Carroll 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 Carroll?

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 Carroll — US Census Records & Model Tree

We found 9247 free census records for William Carroll across 6 census years (1900–1950), in 50 states and DC and 1297 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 9247 records for William Carroll US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	William J. Carroll		Providence, Rhode Island	Rhode Island	Proprietor	Son
1930	William E. Carroll		Holmes, Florida	Florida	Farmer	Head
1940	William Carroll	33	Bibb-County, Alabama	Alabama	Coal Digger	Head
1920	William F. Carroll		Westchester, New York	New York	Office Boy	Son
1940	William J Jr Carroll	25	Suffolk-County, Massachusetts	Massachusetts	—	Son
1920	William Carroll		New York, New York	New York	Agent	Son
1940	William L. Carroll	25	Allegany-County, Maryland	Maryland	Tailvator	Son
1940	William Carroll	21	Cambria-County, Pennsylvania	Pennsylvania	Laborer	Son
1940	William Carroll	29	Jackson-County, Mississippi	Mississippi	Operator	Head
1910	William L. Carroll		Johnston, North Carolina	North Carolina	Farm	Son
1920	William J Carroll		Cheshire, New Hampshire	New Hampshire	Laborer	Son
1930	William G. Carroll		Baltimore, Maryland	Maryland	Clerk	Son
1920	William J Carroll		Plymouth, Massachusetts	Massachusetts	Salesman	Son
1940	William Carroll	27	Philadelphia-County, Pennsylvania	Pennsylvania	Chauffer	Head
1940	William H. Carroll	38	Providence-County, Rhode Island	England	Chief Clerk	Head
1940	William D. Carroll	24	Hennepin-County, Minnesota	Minnesota	Manager	Head
1940	William Carroll	23	Stephenson-County, Illinois	Illinois	Claim Dept.	Son
1940	William H. Carroll	21	Hancock-County, Kentucky	Kentucky	Laborer	Son
1940	William Carroll	23	Erie-County, Pennsylvania	Pennsylvania	Oil Engineer	Son
1930	William W Carroll		Barbour, Alabama	Alabama	Farmer	Head
1920	William Carroll		Hall, Georgia	Georgia	Farmer	Head
1930	William R. Carroll		Winnebago, Illinois	Iowa	Salesman	Head
1940	William Harrison Carroll	42	Calhoun-County, Iowa	Illinois	Farmer	Head
1920	William Carroll		New York, New York	Ireland	Wool Worker	Head
1940	William O. Carroll	39	Jefferson-County, Alabama	Alabama	Superintendent	Head
1940	William J Carroll	68	Mercer-County, New Jersey	New Jersey	Farmer	Head
1930	William Carroll		Coryell, Texas	Texas	Farmer	Head
1920	William Carroll		Whatcom, Washington	Missouri	Laborer	Head
1940	William Carroll	61	Essex-County, Massachusetts	Rhode Island	Airplane	Head
1910	William Carroll		Saratoga, New York	New York	Paver	Son

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About William Carroll US Census Records & Model Tree

We've indexed 9247 free, proprietary US Census records for William Carroll 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 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 9247 US Census records for William Carroll, from 1900 to 1950, across 50 states and DC.
: 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 Carroll'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 Carroll 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 Carroll 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.

Other Carroll US Census Records

Catherine Carroll Charles Carroll Edward Carroll Elizabeth Carroll George Carroll James Carroll John Carroll Joseph Carroll Margaret Carroll Mary Carroll Robert Carroll Thomas Carroll

All Carroll census records →

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