How many Mary Bell census records do you have?

We have 20321 US Census records for Mary Bell, from 1900 to 1950, across 50 states and DC.

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

Yes. All Mary Bell 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 Bell?

We have Mary Bell 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 Bell 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 Bell?

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 Bell — US Census Records & Model Tree

We found 20321 free census records for Mary Bell across 6 census years (1900–1950), in 50 states and DC and 2254 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Bell Census Records by State & County

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Showing of 20321 records for Mary Bell US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Mary Bell		Cleveland, Oklahoma	Oklahoma	—	Daughter
1920	Mary Bell		Caroline, Maryland	Maryland	—	Daughter
1940	Mary Bell	40	Daviess-County, Indiana	Indiana	—	Daughter
1940	Mary Bell	29	Oktibbeha-County, Mississippi	Mississippi	—	Wife
1930	Mary E. Bell		Spartanburg, South Carolina	South Carolina	—	Daughter
1910	Mary Bell		Lancaster, Nebraska	Nebraska	None	Daughter
1940	Mary Bell	22	Richmond-City-County, Virginia	Virginia	—	Wife
1930	Mary A. Bell		Carroll, Maryland	Maryland	—	Daughter
1940	Mary Bell	26	Desoto-County, Louisiana	Louisiana	Farm Laborer	Wife
1920	Mary Bell		Fairfield, South Carolina	South Carolina	Laborer	Wife
1940	Mary P. Bell	74	Middlesex-County, Massachusetts	Vermont	—	Wife
1920	Mary L. Bell		Burlington, New Jersey	New Jersey	—	Wife
1920	Mary Bell		Caddo, Louisiana	Louisiana	Farmer	Wife
1940	Mary Bell	42	Dubuque-County, Iowa	Wisconsin	—	Wife
1940	Mary Bell	55	Allegheny-County, Pennsylvania	France	—	Head
1940	Mary D. Bell	59	Blair-County, Pennsylvania	England	—	Wife
1920	Mary Bell		Goodhue, Minnesota	England	—	Wife
1930	Mary Bell		Jackson, Florida	Florida	—	Wife
1940	Mary H. Bell	83	Orleans-County, Louisiana	England	—	Head
1930	Mary E Bell		Daviess, Kentucky	Kentucky	—	Wife
1940	Mary B. Bell	70	Frederick-County, Maryland	Maryland	—	Head
1940	Mary E. Bell	63	Westmoreland-County, Pennsylvania	New Jersey	—	Wife
1930	Mary J. Bell		Dubuque, Iowa	New York	Farmer	Head
1920	Mary Bell		Walsh, North Dakota	Canada	—	Head
1940	Mary Bell	71	Essex-County, Massachusetts	England	—	Head
1940	Mary Bell	11	Saginaw-County, Michigan	Michigan	—	Daughter
1940	Mary Bell	17	Pointe-Coupee-County, Louisiana	Louisiana	Laborer	Daughter
1920	Mary Bell		Randolph, North Carolina	North Carolina	Railroad Section	Daughter
1930	Mary Bell		Jefferson, Ohio	England	Clerk	Daughter
1930	Mary Bell		Wayne, Michigan	Michigan	—	Daughter

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About Mary Bell US Census Records & Model Tree

We've indexed 20321 free, proprietary US Census records for Mary Bell 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 20321 US Census records for Mary Bell, 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 Bell'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 Bell 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 Bell 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.