How many Mary Horton census records do you have?

We have 7326 US Census records for Mary Horton, from 1900 to 1950, across 50 states, DC, and 1 territory.

What's in a Mary Horton census record?

You'll see Mary'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 Mary Horton'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 Mary Horton census records free?

Yes. All Mary Horton 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 Mary Horton?

We have Mary Horton 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 Mary Horton 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 Mary Horton?

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.

Mary Horton — US Census Records & Model Tree

We found 7326 free census records for Mary Horton across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1475 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Horton Census Records by State & County

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Showing of 7326 records for Mary Horton US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary Ella Horton		Yazoo, Mississippi	Mississippi	—	Daughter
1940	Mary E Horton	22	Lincoln-County, Kentucky	Kentucky	Laborer	Daughter
1940	Mary B. Horton	23	Berkshire-County, Massachusetts	Massachusetts	—	Wife
1930	Mary Horton		Sumter, Alabama	Alabama	Farm Laborer	Daughter
1940	Mary Elizabeth Horton	25	Kane-County, Illinois	Illinois	Bookkeeper	Daughter
1930	Mary E. Horton		Lancaster, South Carolina	South Carolina	Teacher	Daughter
1930	Mary D. Horton		Essex, Massachusetts	Massachusetts	Teacher	Daughter
1940	Mary Horton	80	Spartanburg-County, South Carolina	South Carolina	—	Wife
1920	Mary Horton		New York, New York	New York	—	Wife
1920	Mary Horton		Tarrant, Texas	Iowa	—	Head
1940	Mary Horton	59	Custer-County, Oklahoma	Colorado	—	Wife
1940	Mary Horton	16	Suffolk-County, Massachusetts	Massachusetts	—	Daughter
1910	Mary M Horton		Lawrence, Alabama	Alabama	—	Wife
1920	Mary Horton		Taliaferro, Georgia	Georgia	Farm Hand	Daughter
1940	Mary Horton	24	Oldham-County, Kentucky	Kentucky	Clerk	Daughter
1940	Mary Horton	35	Cambria-County, Pennsylvania	Pennsylvania	—	Wife
1940	Mary Horton	17	Carter-County, Kentucky	Kentucky	—	Daughter
1930	Mary Lou Horton		Alcorn, Mississippi	Mississippi	—	Daughter
1930	Mary E Horton		Ripley, Indiana	Kentucky	—	Daughter
1940	Mary Horton	16	Adams-County, Nebraska	Nebraska	Assistant To Teacher	Daughter
1930	Mary L Horton		None, None	Maryland	—	Daughter
1930	Mary Ann Horton		Sunflower, Mississippi	Mississippi	Farm Laborer	Daughter
1910	Mary A Horton		Franklin, Ohio	England	—	Wife
1940	Mary Ann Horton	11	Lake-County, Indiana	Illinois	—	Daughter
1940	Mary Dee Horton	18	Greene-County, Arkansas	Arkansas	Packer	Daughter
1940	Mary Horton	12	Pulaski-County, Arkansas	Arkansas	—	Daughter
1930	Mary Horton		Hawkins, Tennessee	Tennessee	—	Wife
1930	Mary M. Horton		Union, Kentucky	Kentucky	—	Daughter
1910	Mary M Horton		Drew, Arkansas	Arkansas	—	Daughter
1930	Mary Horton		None, None	South Carolina	—	Daughter

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About Mary Horton US Census Records & Model Tree

We've indexed 7326 free, proprietary US Census records for Mary Horton 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, Puerto Rico, 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 Mary 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 7326 US Census records for Mary Horton, from 1900 to 1950, across 50 states, DC, and 1 territory.
: You'll see Mary'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 Mary Horton'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 Mary Horton 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 Mary Horton 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.