How many William Horn census records do you have?

We have 4050 US Census records for William Horn, from 1900 to 1950, across 50 states and DC.

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

Yes. All William Horn 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 Horn?

We have William Horn 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 Horn 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 Horn?

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 Horn — US Census Records & Model Tree

We found 4050 free census records for William Horn across 6 census years (1900–1950), in 50 states and DC and 1053 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Horn Census Records by State & County

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Showing of 4050 records for William Horn US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	William Jr. Horn	22	Leelanau-County, Michigan	Michigan	Farmer	Son
1930	William Horn		Butte, California	Missouri	Laborer	Son
1940	William Horn	20	Burlington-County, New Jersey	New Jersey	Apprentice Draftsman	Son
1920	William Horn		Hudson, New Jersey	New York	Machinist	Son
1920	William O. Jr. Horn		New York, New York	New York	Salesman	Son
1930	William O. Horn		New York, New York	Germany	Manufacturer	Head
1930	William F. Horn		Shawnee, Kansas	Pennsylvania	Carpenter	Head
1910	William S Horn		Allegheny, Pennsylvania	Pennsylvania	Baggagemaster	Head
1910	William Horn		Estill, Kentucky	Kentucky	Farmer	Head
1940	William H. Horn	19	Union-County, South Carolina	South Carolina	Laborer	Son
1930	William C. Horn		Buchanan, Virginia	Virginia	None	Son
1920	William H. Horn		Barbour, Alabama	Alabama	Farmer	Head
1940	William V. Horn	49	Buchanan-County, Virginia	Virginia	Farmer	Head
1920	William Horn		Wise, Virginia	Virginia	—	Son
1900	William M. Horn	40	Collin, Texas	Georgia	Farmer	Head
1930	William F. Horn		Navarro, Texas	Texas	—	Son
1940	William H. Horn	50	Buchanan-County, Virginia	Virginia	Farmer	Head
1920	William V Horn		Leelanau, Michigan	Michigan	—	Son
1940	William Horn	19	Lake-County, Indiana	Indiana	—	Son
1910	William Horn		Hardin, Kentucky	Kentucky	Farmer	Head
1940	William E. Horn	13	Estill-County, Kentucky	Kentucky	—	Son
1900	William F. Horn	54	Cedar, Iowa	Pennsylvania	Farmer	Head
1940	William Jr Horn	19	New-York-County, New York	New York	New Work	Son
1910	William F. Horn		Orange, New York	New York	—	Son
1930	William Horn		Jefferson, Alabama	Alabama	None	Son
1930	William R. Horn		Burlington, New Jersey	Indiana	Painter	Head
1930	William J. Horn		Union, Arkansas	Arkansas	—	Son
1940	William Horn	17	Cook-County, Illinois	Illinois	—	Son
1920	William Horn		None, None	New York	—	Son
1920	William E. Horn		King, Washington	Washington	None	Son

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About William Horn US Census Records & Model Tree

We've indexed 4050 free, proprietary US Census records for William Horn 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 4050 US Census records for William Horn, 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 Horn'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 Horn 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 Horn 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.