How many Mary Stevenson census records do you have?

We have 5106 US Census records for Mary Stevenson, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All Mary Stevenson 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 Stevenson?

We have Mary Stevenson 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 Stevenson 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 Stevenson?

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 Stevenson — US Census Records & Model Tree

We found 5106 free census records for Mary Stevenson across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1193 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Stevenson Census Records by State & County

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Showing of 5106 records for Mary Stevenson US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary M Stevenson	23	Cook-County, Illinois	Michigan	Public Clerk	Daughter
1940	Mary Stevenson	61	Iron-County, Michigan	Finland	Housekeeper	Wife
1900	Mary Stevenson	60	San Francisco, California	Scotland	—	Head
1940	Mary H. Stevenson	48	Sussex-County, Delaware	Delaware	—	Head
1940	Mary Stevenson	53	Mercer-County, New Jersey	New Jersey	Sales Maker	Wife
1920	Mary Stevenson		Whitman, Washington	Denmark	—	Head
1940	Mary Lou Stevenson	14	Coweta-County, Georgia	Georgia	—	Daughter
1940	Mary L. Stevenson	34	Coweta-County, Georgia	Georgia	Washerwoman	Wife
1940	Mary Stevenson	21	Wayne-County, Michigan	Michigan	—	Daughter
1900	Mary Stevenson	46	New York, New York	Ireland	—	Head
1940	Mary E. Stevenson	19	Coweta-County, Georgia	Georgia	—	Daughter
1940	Mary Stevenson	39	Desha-County, Arkansas	Arkansas	Farmer	Head
1940	Mary Stevenson	13	Jasper-County, Mississippi	Mississippi	—	Daughter
1940	Mary Stevenson	10	Neosho-County, Kansas	Kansas	—	Daughter
1920	Mary Stevenson		None, None	Alabama	—	Daughter
1930	Mary E. Stevenson		Jackson, Louisiana	Louisiana	—	Daughter
1930	Mary E. Stevenson		Lyon, Kansas	Kansas	—	Daughter
1920	Mary L Stevenson		Allegany, Maryland	Maryland	—	Daughter
1940	Mary L. Stevenson	47	Lauderdale-County, Alabama	Alabama	—	Wife
1940	Mary Stevenson	20	Passaic-County, New Jersey	New Jersey	Stenographer	Daughter
1920	Mary Stevenson		Craven, North Carolina	North Carolina	—	Daughter
1940	Mary M Stevenson	18	Champaign-County, Illinois	Illinois	—	Daughter
1940	Mary Stevenson	54	Westchester-County, New York	Connecticut	—	Wife
1940	Mary E. Stevenson	10	Mccurtain-County, Oklahoma	Oklahoma	—	Daughter
1930	Mary Stevenson		Marshall, Kansas	Kansas	—	Daughter
1930	Mary Stevenson		Orleans, Louisiana	Louisiana	—	Daughter
1910	Mary Stevenson		Saline, Kansas	Kansas	—	Daughter
1930	Mary Stevenson		Mecklenburg, North Carolina	North Carolina	—	Daughter
1940	Mary L. Stevenson	38	Silver-Bow-County, Montana	Montana	—	Wife
1940	Mary A. Stevenson	12	Calhoun-County, Michigan	Michigan	—	Daughter

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About Mary Stevenson US Census Records & Model Tree

We've indexed 5106 free, proprietary US Census records for Mary Stevenson 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 5106 US Census records for Mary Stevenson, 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 Stevenson'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 Stevenson 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 Stevenson 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.