How many Betty Allen census records do you have?

We have 4021 US Census records for Betty Allen, from 1900 to 1950, across 50 states, DC, and 1 territory.

What's in a Betty Allen census record?

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

Yes. All Betty 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 Betty Allen?

We have Betty Allen records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find Betty 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 Betty 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.

Betty Allen — US Census Records & Model Tree

We found 4021 free census records for Betty Allen across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1336 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Betty Allen Census Records by State & County

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Showing of 4021 records for Betty Allen US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Betty Allen	21	Denver-County, Colorado	Colorado	—	Daughter
1940	Betty E Allen	22	Wayne-County, Michigan	Michigan	Stenographer	Daughter
1940	Betty Allen	14	Daviess-County, Indiana	Indiana	—	Daughter
1940	Betty Allen	13	Craig-County, Oklahoma	Oklahoma	—	Daughter
1940	Betty Jane Allen	17	Marshall-County, Iowa	Iowa	New Worker	Daughter
1940	Betty Allen	18	Daviess-County, Indiana	Indiana	—	Daughter
1940	Betty Allen	12	Jackson-County, Missouri	Missouri	—	Daughter
1940	Betty Allen	16	Salt-Lake-County, Utah	Utah	—	Daughter
1930	Betty H. Allen		Davie, North Carolina	North Carolina	—	Wife
1940	Betty J. Allen	11	Warren-County, Illinois	Illinois	—	Daughter
1930	Betty Allen		Baltimore, Maryland	Maryland	—	Daughter
1940	Betty Allen	12	Goshen-County, Wyoming	Wyoming	—	Daughter
1930	Betty J. Allen		Vigo, Indiana	Indiana	None	Daughter
1940	Betty Allen	16	Howard-County, Indiana	Indiana	Student	Daughter
1940	Betty Allen	18	Cortland-County, New York	New York	Office Worker	Daughter
1940	Betty Allen	11	Allen-County, Ohio	Ohio	—	Daughter
1940	Betty Jo Allen	15	Macon-County, Illinois	Illinois	—	Daughter
1940	Betty Sue Allen	12	Hidalgo-County, Texas	Texas	—	Daughter
1930	Betty Allen		Dodge, Nebraska	Nebraska	—	Daughter
1940	Betty Allen	12	Decatur-County, Iowa	Iowa	—	Daughter
1940	Betty Jo Allen	10	Oklahoma-County, Oklahoma	Oklahoma	—	Daughter
1940	Betty Allen	13	Ontario-County, New York	New York	—	Daughter
1940	Betty Rose Allen	15	Lawrence-County, Indiana	Indiana	—	Daughter
1940	Betty Allen	13	Scioto-County, Ohio	Ohio	—	Daughter
1940	Betty Allen	13	Spartanburg-County, South Carolina	South Carolina	—	Daughter
1930	Betty Allen		Allegheny, Pennsylvania	Pennsylvania	—	Daughter
1940	Betty L. Allen	12	Ingham-County, Michigan	Michigan	—	Daughter
1940	Betty J. Allen	10	Haywood-County, Tennessee	Tennessee	—	Daughter
1930	Betty J Allen		Tulare, California	California	None	Daughter
1940	Betty Ann Allen	17	Gila-County, Arizona	Arizona	—	Daughter

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About Betty Allen US Census Records & Model Tree

We've indexed 4021 free, proprietary US Census records for Betty Allen across 1900–1950, covering 50 states, DC, and 1 territory: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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 Betty 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 4021 US Census records for Betty Allen, from 1900 to 1950, across 50 states, DC, and 1 territory.
: You'll see Betty'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 Betty 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 Betty 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 Betty Allen records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. 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.