How many Theodore Anderson census records do you have?

We have 3958 US Census records for Theodore Anderson, from 1900 to 1950, across 49 states and DC.

What's in a Theodore Anderson census record?

You'll see Theodore'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 Theodore Anderson'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 Theodore Anderson census records free?

Yes. All Theodore Anderson 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 Theodore Anderson?

We have Theodore Anderson records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters to narrow your results.

How do I find Theodore Anderson 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 Theodore Anderson?

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.

Theodore Anderson — US Census Records & Model Tree

We found 3958 free census records for Theodore Anderson across 6 census years (1900–1950), in 49 states and DC and 940 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Theodore Anderson Census Records by State & County

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Showing of 3958 records for Theodore Anderson US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Theodore J Anderson		Big Stone, Minnesota	Sweden	Farmer	Head
1940	Theodore G. Anderson	31	Middlesex-County, Massachusetts	Massachusetts	Clerk	Son
1930	Theodore Anderson		Cowlitz, Washington	Washington	Timber Faller	Son
1940	Theodore Anderson	35	Cook-County, Illinois	Illinois	Shipping Clerk	Head
1930	Theodore Anderson		Pope, Minnesota	Minnesota	—	Son
1940	Theodore Anderson	37	Mckean-County, Pennsylvania	Pennsylvania	Baker	Head
1940	Theodore Anderson	21	Cook-County, Illinois	Illinois	News Theater	Son
1930	Theodore Anderson		Audubon, Iowa	Iowa	Farm Laborer	Son
1940	Theodore M. Anderson	34	Ramsey-County, Minnesota	Minnesota	Clerk	Head
1940	Theodore Anderson	48	Morris-County, Kansas	Kansas	Farmer	Head
1930	Theodore W Anderson		Chisago, Minnesota	Minnesota	Laborer	Son
1920	Theodore G Anderson		Fillmore, Minnesota	Minnesota	Operator	Head
1920	Theodore C Anderson		Douglas, Nebraska	Nebraska	Teller & Bookkeeper	Son
1940	Theodore Anderson	37	Suffolk-County, Massachusetts	Massachusetts	Laborer	Head
1940	Theodore Anderson	36	Ramsey-County, Minnesota	Minnesota	Proprietor	Head
1930	Theodore Anderson		Winnebago, Illinois	Illinois	Laborer	Head
1930	Theodore Anderson		Wayne, Michigan	Tennessee	Truck Driver	Head
1940	Theodore Anderson	33	Lyon-County, Minnesota	Minnesota	Truck Driver	Head
1930	Theodore Anderson		Cook, Illinois	Illinois	Bookkeeper	Head
1930	Theodore G. Anderson		Otter Tail, Minnesota	Minnesota	Delivery Man	Head
1930	Theodore Anderson		Ashland, Wisconsin	Wisconsin	—	Son
1930	Theodore R. Anderson		Hartford, Connecticut	Connecticut	Dentist	Son
1940	Theodore Anderson	59	Cook-County, Illinois	Sweden	—	Head
1940	Theodore Anderson	55	Cook-County, Illinois	Sweden	Bartender	Head
1930	Theodore Anderson		Cook, Illinois	Norway	None	Head
1940	Theodore W. Anderson	50	Hennepin-County, Minnesota	Minnesota	Truck Driver	Head
1930	Theodore Anderson		Osage, Kansas	Kansas	Farmer	Head
1930	Theodore Anderson		Spokane, Washington	Norway	Gardener	Head
1940	Theodore Anderson	57	Cuyahoga-County, Ohio	Sweden	Laborer	Head
1930	Theodore Anderson		Norfolk, Massachusetts	Sweden	Gardener	Head

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About Theodore Anderson US Census Records & Model Tree

We've indexed 3958 free, proprietary US Census records for Theodore Anderson across 1900–1950, covering 49 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, 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 Theodore 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 3958 US Census records for Theodore Anderson, from 1900 to 1950, across 49 states and DC.
: You'll see Theodore'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 Theodore Anderson'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 Theodore Anderson 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 Theodore Anderson records from the 1900 through 1950 US Federal Census, across 49 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.

Other Anderson US Census Records

Ada Anderson Agnes Anderson Albert Anderson Alfred Anderson Alice Anderson Alma Anderson Alvin Anderson Amanda Anderson Andrew Anderson Anna Anderson Annie Anderson Arthur Anderson August Anderson Augusta Anderson Axel Anderson Barbara Anderson Beatrice Anderson Bernice Anderson Bertha Anderson Bessie Anderson Betty Anderson Carl Anderson Caroline Anderson Carrie Anderson Catherine Anderson Charles Anderson Charlie Anderson Charlotte Anderson Clara Anderson Clarence Anderson Clifford Anderson Cora Anderson David Anderson Donald Anderson Dora Anderson Doris Anderson Dorothy Anderson Earl Anderson Edith Anderson Edna Anderson Edward Anderson Edwin Anderson Eleanor Anderson Elizabeth Anderson Ella Anderson Ellen Anderson Elmer Anderson Elsie Anderson Emil Anderson Emma Anderson Ernest Anderson Esther Anderson Ethel Anderson Eugene Anderson Eva Anderson Evelyn Anderson Florence Anderson Frances Anderson Francis Anderson Frank Anderson Fred Anderson George Anderson Gertrude Anderson Gladys Anderson Grace Anderson Hannah Anderson Hans Anderson Harold Anderson Harry Anderson Hattie Anderson Hazel Anderson Helen Anderson Henry Anderson Herbert Anderson Herman Anderson Hilda Anderson Howard Anderson Hulda Anderson Ida Anderson Irene Anderson Isaac Anderson Jack Anderson James Anderson Jane Anderson Jean Anderson Jennie Anderson Jessie Anderson Joe Anderson John Anderson Joseph Anderson Josephine Anderson Julia Anderson Katherine Anderson Kenneth Anderson Laura Anderson Lawrence Anderson Lena Anderson Leonard Anderson Lillian Anderson Lillie Anderson Lizzie Anderson Lloyd Anderson Lois Anderson Louis Anderson Louise Anderson Lucille Anderson Lucy Anderson Lula Anderson Mabel Anderson Maggie Anderson Margaret Anderson Marie Anderson Marion Anderson Martha Anderson Martin Anderson Mary Anderson Matilda Anderson Mattie Anderson Melvin Anderson Mildred Anderson Minnie Anderson Myrtle Anderson Nancy Anderson Nellie Anderson Nels Anderson Ole Anderson Oscar Anderson Otto Anderson Paul Anderson Pearl Anderson Peter Anderson Ralph Anderson Ray Anderson Raymond Anderson Richard Anderson Robert Anderson Rosa Anderson Rose Anderson Roy Anderson Ruby Anderson Russell Anderson Ruth Anderson Sam Anderson Samuel Anderson Sarah Anderson Selma Anderson Shirley Anderson Thelma Anderson Thomas Anderson Victor Anderson Viola Anderson Virginia Anderson Walter Anderson William Anderson Willie Anderson

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