How many Mary Clayton census records do you have?

We have 3989 US Census records for Mary Clayton, from 1900 to 1950, across 49 states and DC.

What's in a Mary Clayton 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 Clayton'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 Clayton census records free?

Yes. All Mary Clayton 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 Clayton?

We have Mary Clayton records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Clayton 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 Clayton?

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 Clayton — US Census Records & Model Tree

We found 3989 free census records for Mary Clayton across 6 census years (1900–1950), in 49 states and DC and 1042 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Clayton Census Records by State & County

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Showing of 3989 records for Mary Clayton US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary E. Clayton		Jasper, Mississippi	Mississippi	—	Daughter
1940	Mary A Clayton	18	Lauderdale-County, Mississippi	Mississippi	Labour	Daughter
1930	Mary B Clayton		Orange, North Carolina	North Carolina	—	Daughter
1920	Mary Clayton		Ocean, New Jersey	New Jersey	Student	Daughter
1930	Mary E Clayton		Lee, Illinois	Illinois	Operator	Daughter
1930	Mary Clayton		Mississippi, Missouri	Missouri	None	Daughter
1940	Mary I. Clayton	24	Canyon-County, Idaho	Oklahoma	—	Daughter
1940	Mary Clayton	31	Philadelphia-County, Pennsylvania	Pennsylvania	—	Wife
1920	Mary Clayton		None, Maryland	Maryland	—	Wife
1920	Mary Clayton		Ross, Ohio	Ohio	—	Wife
1940	Mary Clayton	46	Washita-County, Oklahoma	Texas	—	Wife
1930	Mary E. Clayton		Ocean, New Jersey	New Jersey	—	Wife
1940	Mary E Clayton	41	Potter-County, Texas	Oklahoma	—	Wife
1920	Mary Clayton		Essex, Massachusetts	England	None	Head
1940	Mary O Clayton	59	York-County, Nebraska	Illinois	—	Wife
1940	Mary (X) Clayton	49	Montgomery-County, Alabama	Alabama	—	Wife
1940	Mary L. Clayton	62	Jackson-County, Louisiana	Louisiana	—	Wife
1920	Mary Clayton		Saginaw, Michigan	Ohio	Housekeeper	Head
1940	Mary Clayton	69	Suffolk-County, New York	England	—	Head
1920	Mary A. Clayton		Jasper, Mississippi	Mississippi	—	Daughter
1930	Mary Clayton		Hopkins, Texas	Texas	—	Wife
1940	Mary Ella Clayton	16	Leake-County, Mississippi	Mississippi	—	Daughter
1930	Mary J. Clayton		Avoyelles, Louisiana	Louisiana	Laborer	Wife
1930	Mary F. Clayton		Marion, Indiana	Indiana	—	Daughter
1940	Mary Francis Clayton	11	Poweshiek-County, Iowa	Iowa	—	Daughter
1930	Mary Lou Clayton		Shelby, Tennessee	Tennessee	—	Daughter
1940	Mary Clayton	36	Gilmer-County, Georgia	Georgia	—	Wife
1920	Mary Clayton		Panola, Mississippi	Mississippi	—	Wife
1940	Mary Clayton	14	Kemper-County, Mississippi	Mississippi	—	Daughter
1910	Mary Jane Clayton		Wilkinson, Mississippi	Mississippi	Farm Laborer	Wife

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About Mary Clayton US Census Records & Model Tree

We've indexed 3989 free, proprietary US Census records for Mary Clayton across 1900–1950, covering 49 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, 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 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 3989 US Census records for Mary Clayton, from 1900 to 1950, across 49 states and DC.
: 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 Clayton'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 Clayton 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 Clayton records from the 1900 through 1950 US Federal Census, across 49 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.