How many Mary Stephenson census records do you have?

We have 3390 US Census records for Mary Stephenson, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Stephenson 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 Stephenson?

We have Mary Stephenson 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 Stephenson 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 Stephenson?

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 Stephenson — US Census Records & Model Tree

We found 3390 free census records for Mary Stephenson across 6 census years (1900–1950), in 49 states and DC and 1036 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Stephenson Census Records by State & County

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Showing of 3390 records for Mary Stephenson US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Mary Stephenson		Mercer, New Jersey	New Jersey	Packer	Wife
1930	Mary Stephenson		Jasper, Mississippi	Mississippi	—	Daughter
1940	Mary Stephenson	18	Northampton-County, North Carolina	North Carolina	Laborer	Daughter
1920	Mary C Stephenson		El Paso, Colorado	Colorado	—	Daughter
1930	Mary C. Stephenson		Perry, Ohio	Ohio	Mold Runner	Daughter
1910	Mary E Stephenson		Fremont, Idaho	Idaho	Stenographer	Daughter
1940	Mary Stephenson	13	Johnston-County, North Carolina	North Carolina	—	Daughter
1910	Mary Stephenson		Jackson, Kansas	Ohio	—	Wife
1910	Mary Stephenson		Shawnee, Kansas	Tennessee	Domestic	Wife
1930	Mary S Stephenson		Lawrence, Tennessee	Tennessee	—	Daughter
1910	Mary M Stephenson		None, None	Delaware	—	Wife
1940	Mary Anna Stephenson	14	Floyd-County, Kentucky	Kentucky	—	Daughter
1940	Mary Lou Stephenson	12	Adams-County, Ohio	Ohio	Same Place	Daughter
1940	Mary Stephenson	13	Mecklenburg-County, North Carolina	North Carolina	—	Daughter
1930	Mary M. Stephenson		Greene, Pennsylvania	Pennsylvania	Engineer	Wife
1910	Mary L Stephenson		Shelby, Tennessee	Tennessee	None	Wife
1940	Mary Stephenson	18	Tangipahoa-County, Louisiana	Louisiana	Farm Laborer	Daughter
1940	Mary Stephenson	21	Johnston-County, North Carolina	North Carolina	5	Daughter
1910	Mary E Stephenson		Henry, Alabama	Alabama	—	Wife
1910	Mary Stephenson		Burlington, New Jersey	New Jersey	Housekeeper	Wife
1940	Mary Stephenson	20	Allendale-County, South Carolina	South Carolina	—	Daughter
1900	Mary E Stephenson	38	Washington, Indiana	Indiana	—	Wife
1920	Mary Stephenson		Clearfield, Pennsylvania	Wales	—	Wife
1940	Mary Stephenson	14	Carroll-County, Georgia	Georgia	—	Daughter
1920	Mary Stephenson		Washington, Virginia	Virginia	None	Wife
1940	Mary Stephenson	42	Jefferson-County, Kentucky	Kentucky	—	Wife
1940	Mary Stephenson	28	Bronx-County, New York	Scotland	Packer	Daughter
1910	Mary E Stephenson		San Francisco, California	Nevada	None	Wife
1930	Mary Stephenson		Maury, Tennessee	Tennessee	—	Son
1940	Mary Stephenson	29	Milwaukee-County, Wisconsin	Wisconsin	—	Daughter

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About Mary Stephenson US Census Records & Model Tree

We've indexed 3390 free, proprietary US Census records for Mary Stephenson across 1900–1950, covering 49 states and DC: Alabama, 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 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 3390 US Census records for Mary Stephenson, 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 Stephenson'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 Stephenson 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 Stephenson 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.