How many Mary Ball census records do you have?

We have 6995 US Census records for Mary Ball, from 1900 to 1950, across 50 states and DC.

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

Yes. All Mary Ball 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 Ball?

We have Mary Ball 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 Ball 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 Ball?

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 Ball — US Census Records & Model Tree

We found 6995 free census records for Mary Ball across 6 census years (1900–1950), in 50 states and DC and 1489 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Ball Census Records by State & County

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Showing of 6995 records for Mary Ball US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Mary Ball		Richland, South Carolina	South Carolina	Laborer	Wife
1930	Mary Ball		Maury, Tennessee	Tennessee	—	Daughter
1940	Mary Ball	41	Philadelphia-County, Pennsylvania	Georgia	—	Wife
1930	Mary Ball		Marion, Indiana	Kentucky	—	Wife
1920	Mary Ball		Montgomery, Pennsylvania	England	None	Wife
1920	Mary Ball		Cook, Illinois	Germany	None	Wife
1940	Mary Ball	53	Cook-County, Illinois	Poland	—	Wife
1940	Mary Ball	72	Rush-County, Indiana	Indiana	—	Head
1920	Mary Ball		San Francisco, California	England	Store Keeper	Head
1910	Mary Ball		Jackson, West Virginia	West Virginia	None	Daughter
1900	Mary A. Ball	34	Summit, Utah	England	—	Wife
1930	Mary Ball		St Louis, Missouri	Missouri	—	Daughter
1940	Mary Ann Ball	15	Saginaw-County, Michigan	Michigan	—	Daughter
1940	Mary Ellen Ball	12	Pierce-County, Washington	Washington	—	Daughter
1920	Mary Ball		Madison, North Carolina	North Carolina	—	Daughter
1940	Mary Ball	17	Perry-County, Indiana	Indiana	Housekeeper	Daughter
1910	Mary E. Ball		Russell, Virginia	Virginia	—	Wife
1910	Mary E Ball		Nelson, Kentucky	Kentucky	—	Wife
1920	Mary Ball		Dickinson, Michigan	Poland	—	Wife
1920	Mary Ball		Durham, North Carolina	North Carolina	—	Wife
1930	Mary A Ball		Nelson, Kentucky	Kentucky	None	Daughter
1940	Mary Ball	39	Johnson-County, Iowa	Iowa	Housewife	Wife
1910	Mary Ball		Fauquier, Virginia	Virginia	—	Wife
1930	Mary Ball		Somerset, Pennsylvania	Poland	None	Wife
1930	Mary Ball		Cass, Texas	Texas	None	Daughter
1930	Mary A. Ball		Montgomery, Alabama	Alabama	—	Daughter
1940	Mary H. Ball	18	Mesa-County, Colorado	Colorado	—	Daughter
1910	Mary E. Ball		Russell, Virginia	Virginia	—	Wife
1930	Mary J Ball		Imperial, California	Arizona	—	Daughter
1910	Mary E. Ball		Lawrence, Indiana	Indiana	—	Wife

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About Mary Ball US Census Records & Model Tree

We've indexed 6995 free, proprietary US Census records for Mary Ball 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 6995 US Census records for Mary Ball, 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 Ball'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 Ball 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 Ball 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.