How many Bertha Allen census records do you have?

We have 3742 US Census records for Bertha Allen, from 1900 to 1950, across 48 states and DC.

What's in a Bertha Allen census record?

You'll see Bertha'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 Bertha Allen'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 Bertha Allen census records free?

Yes. All Bertha Allen 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 Bertha Allen?

We have Bertha Allen records from the 1900 through 1950 US Federal Census, across 48 states and DC. Use the year and state filters to narrow your results.

How do I find Bertha Allen 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 Bertha Allen?

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.

Bertha Allen — US Census Records & Model Tree

We found 3742 free census records for Bertha Allen across 6 census years (1900–1950), in 48 states and DC and 1214 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Bertha Allen Census Records by State & County

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Showing of 3742 records for Bertha Allen US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Bertha Allen		Greene, Mississippi	Mississippi	—	Daughter
1930	Bertha Allen		Vance, North Carolina	North Carolina	—	Daughter
1920	Bertha E. Allen		Wayne, Pennsylvania	Pennsylvania	—	Daughter
1930	Bertha M. Allen		Luzerne, Pennsylvania	Pennsylvania	—	Daughter
1920	Bertha Allen		Washington, Mississippi	Mississippi	—	Daughter
1930	Bertha Allen		Montgomery, Tennessee	Tennessee	—	Daughter
1940	Bertha Allen	55	Cass-County, Nebraska	Iowa	—	Wife
1910	Bertha Allen		Jefferson, Alabama	Alabama	Laundress	Wife
1930	Bertha Allen		Muscogee, Georgia	Georgia	—	Wife
1940	Bertha Allen	53	Vermilion-County, Illinois	Illinois	—	Wife
1940	Bertha Allen	43	Horry-County, South Carolina	South Carolina	Teacher	Wife
1940	Bertha Allen	40	Bulloch-County, Georgia	Georgia	—	Wife
1940	Bertha Allen	46	Horry-County, South Carolina	South Carolina	—	Wife
1940	Bertha Allen	65	Monroe-County, New York	Germany	—	Wife
1920	Bertha Allen		Jefferson, Alabama	Alabama	—	Wife
1940	Bertha Allen	50	Broome-County, New York	New York	Stitcher	Wife
1930	Bertha Allen		Allegheny, Pennsylvania	Pennsylvania	Seamstress	Head
1940	Bertha Allen	17	Lake-County, Florida	Florida	—	Daughter
1920	Bertha S Allen		Polk, Iowa	Iowa	Wagon Driver	Wife
1900	Bertha Allen	3	Montgomery, North Carolina	North Carolina	—	Daughter
1920	Bertha Allen		Cherokee, North Carolina	North Carolina	—	Daughter
1920	Bertha Allen		Butler, Missouri	Missouri	None	Daughter
1930	Bertha M. Allen		Boulder, Colorado	Pennsylvania	None	Wife
1930	Bertha Allen		Ripley, Missouri	Missouri	—	Daughter
1940	Bertha Allen	11	Franklin-County, Alabama	Alabama	—	Daughter
1940	Bertha Allen	35	Floyd-County, Georgia	Georgia	—	Wife
1930	Bertha Allen		Shiawassee, Michigan	Michigan	—	Wife
1910	Bertha Allen		Calhoun, Alabama	Alabama	None	Daughter
1940	Bertha Allen	15	Vigo-County, Indiana	Indiana	No	Daughter
1910	Bertha Allen		Butler, Alabama	Alabama	Farm Laborer	Daughter

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About Bertha Allen US Census Records & Model Tree

We've indexed 3742 free, proprietary US Census records for Bertha Allen across 1900–1950, covering 48 states and DC: Alabama, Alaska, 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, 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 Bertha 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 3742 US Census records for Bertha Allen, from 1900 to 1950, across 48 states and DC.
: You'll see Bertha'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 Bertha Allen'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 Bertha Allen 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 Bertha Allen records from the 1900 through 1950 US Federal Census, across 48 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.