How many Mary Berger census records do you have?

We have 3164 US Census records for Mary Berger, from 1900 to 1950, across 46 states and DC.

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

Yes. All Mary Berger 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 Berger?

We have Mary Berger records from the 1900 through 1950 US Federal Census, across 46 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Berger 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 Berger?

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 Berger — US Census Records & Model Tree

We found 3164 free census records for Mary Berger across 6 census years (1900–1950), in 46 states and DC and 675 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Berger Census Records by State & County

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Showing of 3164 records for Mary Berger US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary E. Berger	25	Rock-Island-County, Illinois	Illinois	Stenographer	Daughter
1940	Mary Berger	70	New-York-County, New York	Hungary	—	Wife
1930	Mary M. Berger		Schuylkill, Pennsylvania	Pennsylvania	Operator	Daughter
1940	Mary A Berger	48	Onondaga-County, New York	New York	—	Wife
1940	Mary Berger	19	Onondaga-County, New York	New York	Waitress	Daughter
1940	Mary E. Berger	55	Richland-County, Ohio	France	—	Wife
1930	Mary Berger		Luzerne, Pennsylvania	Pennsylvania	Redrawer	Daughter
1930	Mary E. Berger		Monroe, Pennsylvania	Pennsylvania	—	Daughter
1930	Mary Berger		Hudson, New Jersey	New Jersey	—	Daughter
1940	Mary Berger	59	Sarasota-County, Florida	Florida	No	Wife
1910	Mary U Berger		Berks, Pennsylvania	Pennsylvania	Home Farm	Daughter
1930	Mary Berger		San Francisco, California	California	None	Daughter
1930	Mary Berger		Woodbury, Iowa	Iowa	—	Wife
1940	Mary Berger	37	Oliver-County, North Dakota	North Dakota	—	Wife
1900	Mary Berger	12	Fulton, Georgia	Russia	At School	Daughter
1930	Mary A. Berger		Kane, Illinois	Germany	None	Wife
1930	Mary Berger		Northampton, Pennsylvania	Pennsylvania	—	Daughter
1930	Mary Berger		New York, New York	Russia	—	Wife
1920	Mary A Berger		Fayette, West Virginia	West Virginia	—	Daughter
1930	Mary A Berger		Allegheny, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary Berger	47	Kings-County, New York	Russia	—	Wife
1930	Mary C Berger		Baltimore, Maryland	Maryland	—	Daughter
1940	Mary Berger	45	Cook-County, Illinois	Germany	—	Wife
1940	Mary Berger	45	Oneida-County, New York	New York	Warper	Wife
1930	Mary Berger		St Louis, Missouri	Missouri	Stenographer	Daughter
1940	Mary Berger	40	Bronx-County, New York	Russia	—	Wife
1920	Mary Berger		Montgomery, Ohio	Ohio	—	Daughter
1940	Mary Berger	51	Cuyahoga-County, Ohio	Rumania	—	Wife
1940	Mary Jane Berger	13	Winona-County, Minnesota	Minnesota	—	Daughter
1910	Mary M. Berger		Pierce, Washington	Washington	—	Daughter

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About Mary Berger US Census Records & Model Tree

We've indexed 3164 free, proprietary US Census records for Mary Berger across 1900–1950, covering 46 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, 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.

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 3164 US Census records for Mary Berger, from 1900 to 1950, across 46 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 Berger'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 Berger 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 Berger records from the 1900 through 1950 US Federal Census, across 46 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.

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