How many Mary Chapman census records do you have?

We have 8755 US Census records for Mary Chapman, from 1900 to 1950, across 50 states and DC.

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

Yes. All Mary Chapman 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 Chapman?

We have Mary Chapman 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 Mary Chapman 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 Chapman?

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 Chapman — US Census Records & Model Tree

We found 8755 free census records for Mary Chapman across 6 census years (1900–1950), in 50 states and DC and 1623 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Chapman Census Records by State & County

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Showing of 8755 records for Mary Chapman US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary Sue Chapman	22	Tipton-County, Tennessee	Tennessee	Farm Laborer	Daughter
1920	Mary E Chapman		Reno, Kansas	Ohio	Librarian	Daughter
1930	Mary Alice Chapman		Crawford, Pennsylvania	Pennsylvania	—	Daughter
1930	Mary Chapman		Republic, Kansas	Kansas	—	Daughter
1940	Mary Chapman	32	Greenville-County, South Carolina	South Carolina	—	Wife
1940	Mary Chapman	22	Pike-County, Kentucky	Kentucky	—	Wife
1940	Mary Jane Chapman	21	Wayne-County, Ohio	Ohio	Stenographer	Daughter
1940	Mary J Chapman	54	Brown-County, Ohio	Ohio	—	Daughter
1940	Mary R Chapman	21	Salt-Lake-County, Utah	Idaho	School Teacher	Daughter
1910	Mary C Chapman		Montgomery, Ohio	Ohio	—	Wife
1910	Mary Jane Chapman		Anderson, South Carolina	South Carolina	Washerwoman	Wife
1940	Mary Chapman	48	Franklin-County, Ohio	North Carolina	—	Wife
1940	Mary Chapman	52	Union-County, Louisiana	Louisiana	—	Wife
1940	Mary Chapman	43	Monroe-County, Missouri	Missouri	—	Wife
1920	Mary E Chapman		Middlesex, Massachusetts	Maine	—	Wife
1940	Mary Chapman	55	Clackamas-County, Oregon	Wisconsin	—	Wife
1930	Mary Chapman		Clay, West Virginia	West Virginia	None	Head
1940	Mary L. Q. Chapman	53	Isle-Of-Wight-County, Virginia	Virginia	—	Head
1920	Mary E Chapman		Rockingham, New Hampshire	New Hampshire	—	Head
1940	Mary Chapman	71	Kings-County, New York	Ireland	—	Head
1940	Mary M. Chapman	80	Greene-County, Indiana	Indiana	—	Head
1930	Mary Chapman		Denver, Colorado	Illinois	None	Head
1940	Mary Chapman	9	Alexander-County, North Carolina	North Carolina	—	Daughter
1930	Mary H Chapman		Perry, Alabama	Alabama	Laborer	Daughter
1940	Mary E Chapman	14	Burke-County, North Carolina	North Carolina	—	Daughter
1940	Mary Chapman	17	Oswego-County, New York	New York	—	Daughter
1940	Mary Chapman	54	Pike-County, Kentucky	Kentucky	—	Wife
1940	Mary Chapman	19	King-County, Washington	North Dakota	Stenographer	Daughter
1940	Mary Chapman	50	Talladega-County, Alabama	Alabama	—	Wife
1940	Mary Chapman	33	Cook-County, Illinois	Alabama	—	Wife

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About Mary Chapman US Census Records & Model Tree

We've indexed 8755 free, proprietary US Census records for Mary Chapman 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 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 8755 US Census records for Mary Chapman, from 1900 to 1950, across 50 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 Chapman'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 Chapman 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 Chapman 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.