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Theodore Johnson — US Census Records & Model Tree

We found 8268 free census records for Theodore Johnson across 6 census years (1900–1950), in 50 states and DC and 1493 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Theodore Johnson Census Records by State & County

Records per state:

Census Record Search

Exact match:
Family Members (in same household)
Showing of 8268 records for Theodore Johnson US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 Theodore Johnson 33 Polk-County, Minnesota Minnesota Farm Worker Son
1930 Theodore Johnson Cook, Illinois Illinois Laborer Son
1940 Theodore T. @ Johnson 35 Mahaska-County, Iowa Iowa Laborer Head
1940 Theodore N. Johnson 46 Ramsey-County, Minnesota Minnesota Bookkeeping Head
1940 Theodore O. Johnson 32 Bergen-County, New Jersey New York Glazier Head
1940 Theodore Johnson 40 Hudson-County, New Jersey New Jersey Inspector Head
1940 Theodore Johnson 32 Middlesex-County, Massachusetts Massachusetts Truck Driver Head
1940 Theodore Johnson 33 Ramsey-County, Minnesota Minnesota Wholesale Son
1930 Theodore Johnson Pocahontas, Iowa Iowa Laborer Son
1930 Theodore Johnson Reno, Kansas Kansas Mail Clerk Head
1930 Theodore Johnson Duval, Florida Florida Delivery Boy Son
1920 Theodore L. Johnson Chisago, Minnesota Minnesota Plumber Son
1940 Theodore M. Johnson 27 Hennepin-County, Minnesota Minnesota Sawyer Head
1940 Theodore C. Johnson 24 Chisago-County, Minnesota Minnesota Chemist Son
1910 Theodore N Johnson Burnett, Wisconsin Wisconsin — Son
1940 Theodore Johnson 30 Hamilton-County, Indiana Indiana Truck Driver Son
1930 Theodore W. Johnson Wheeler, Nebraska Nebraska Farm Laborer Son
1940 Theodore J Johnson 34 Clatsop-County, Oregon California Blacksmith Son
1940 Theodore Johnson 35 Douglas-County, Minnesota Minnesota Farmer Head
1930 Theodore Johnson Adams, Colorado Colorado Laborer Son
1940 Theodore Johnson 24 Williams-County, North Dakota North Dakota — Son
1930 Theodore Q Johnson Cook, Illinois Illinois Salesman Son
1930 Theodore Johnson St Louis, Minnesota Minnesota Bus Driver Head
1930 Theodore A Johnson Douglas, Minnesota Minnesota Laborer Son
1920 Theodore Johnson Dane, Wisconsin Wisconsin Carpenter Head
1920 Theodore Johnson Osceola, Michigan Michigan Farmer Head
1930 Theodore H Johnson Adams, Wisconsin Wisconsin Farmer Son
1940 Theodore Johnson 32 Delta-County, Michigan Michigan Barber Son
1930 Theodore Johnson Hennepin, Minnesota Minnesota Carpenter Son
1940 Theodore Johnson 21 Noble-County, Indiana Indiana — Son

About Theodore Johnson US Census Records & Model Tree

We've indexed 8268 free, proprietary US Census records for Theodore Johnson 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 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 8268 US Census records for Theodore Johnson, from 1900 to 1950, across 50 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 Johnson'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 Johnson 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 Johnson 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.

Other Johnson US Census Records

Ada Johnson Addie Johnson Adolph Johnson Agnes Johnson Albert Johnson Alex Johnson Alfred Johnson Alice Johnson Allen Johnson Alma Johnson Alvin Johnson Amanda Johnson Amelia Johnson Andrew Johnson Anna Johnson Annie Johnson Archie Johnson Arnold Johnson Arthur Johnson August Johnson Augusta Johnson Axel Johnson Barbara Johnson Beatrice Johnson Ben Johnson Benjamin Johnson Bernard Johnson Bernice Johnson Bertha Johnson Bessie Johnson Bettie Johnson Betty Johnson Beulah Johnson Billy Johnson Blanche Johnson Carl Johnson Carol Johnson Caroline Johnson Carrie Johnson Catherine Johnson Cecil Johnson Charles Johnson Charley Johnson Charlie Johnson Charlotte Johnson Chas Johnson Chester Johnson Christina Johnson Christine Johnson Clara Johnson Clarence Johnson Claude Johnson Clifford Johnson Clyde Johnson Cora Johnson Curtis Johnson Daisy Johnson Daniel Johnson David Johnson Donald Johnson Dora Johnson Doris Johnson Dorothy Johnson Earl Johnson Ed Johnson Eddie Johnson Edgar Johnson Edith Johnson Edna Johnson Edward Johnson Edwin Johnson Effie Johnson Eleanor Johnson Eliza Johnson Elizabeth Johnson Ella Johnson Ellen Johnson Elmer Johnson Elsie Johnson Emil Johnson Emily Johnson Emma Johnson Ernest Johnson Esther Johnson Ethel Johnson Eugene Johnson Eunice Johnson Eva Johnson Evelyn Johnson Everett Johnson Fannie Johnson Flora Johnson Florence Johnson Floyd Johnson Frances Johnson Francis Johnson Frank Johnson Fred Johnson Frederick Johnson George Johnson Georgia Johnson Gerald Johnson Gertrude Johnson Gilbert Johnson Gladys Johnson Gordon Johnson Grace Johnson Gust Johnson Guy Johnson Hannah Johnson Hans Johnson Harold Johnson Harriet Johnson Harry Johnson Harvey Johnson Hattie Johnson Hazel Johnson Helen Johnson Henry Johnson Herbert Johnson Herman Johnson Hilda Johnson Homer Johnson Howard Johnson Hulda Johnson Ida Johnson Inez Johnson Ira Johnson Irene Johnson Isaac Johnson Jack Johnson Jacob Johnson James Johnson Jane Johnson Jean Johnson Jennie Johnson Jerry Johnson Jesse Johnson Jessie Johnson Jim Johnson Joe Johnson John Johnson Johnnie Johnson Joseph Johnson Josephine Johnson Joyce Johnson Juanita Johnson Julia Johnson Julius Johnson Katherine Johnson Katie Johnson Kenneth Johnson Laura Johnson Lawrence Johnson Lee Johnson Lena Johnson Leo Johnson Leon Johnson Leona Johnson Leonard Johnson Leroy Johnson Leslie Johnson Lester Johnson Lewis Johnson Lillian Johnson Lillie Johnson Lilly Johnson Lizzie Johnson Lloyd Johnson Lois Johnson Lola Johnson Lottie Johnson Louis Johnson Louisa Johnson Louise Johnson Lucile Johnson Lucille Johnson Lucy Johnson Lula Johnson Luther Johnson Lydia Johnson Mabel Johnson Mable Johnson Maggie Johnson Mamie Johnson Margaret Johnson Maria Johnson Marie Johnson Marion Johnson Marjorie Johnson Martha Johnson Martin Johnson Marvin Johnson Mary Johnson Matilda Johnson Mattie Johnson Maud Johnson Maude Johnson May Johnson Melvin Johnson Mildred Johnson Milton Johnson Minnie Johnson Mollie Johnson Morris Johnson Myrtle Johnson Nancy Johnson Nellie Johnson Nels Johnson Nettie Johnson Nora Johnson Norma Johnson Norman Johnson Ole Johnson Olga Johnson Oliver Johnson Ollie Johnson Oscar Johnson Otto Johnson Patricia Johnson Paul Johnson Pauline Johnson Pearl Johnson Peter Johnson Philip Johnson Phyllis Johnson Rachel Johnson Ralph Johnson Ray Johnson Raymond Johnson Rebecca Johnson Richard Johnson Robert Johnson Ronald Johnson Rosa Johnson Rose Johnson Roy Johnson Ruby Johnson Russell Johnson Ruth Johnson Sadie Johnson Sallie Johnson Sam Johnson Samuel Johnson Sarah Johnson Selma Johnson Shirley Johnson Sidney Johnson Sophia Johnson Stanley Johnson Stella Johnson Susan Johnson Susie Johnson Thelma Johnson Thomas Johnson Tom Johnson Velma Johnson Vera Johnson Verna Johnson Vernon Johnson Victor Johnson Viola Johnson Violet Johnson Virginia Johnson Vivian Johnson Wallace Johnson Walter Johnson Warren Johnson Wayne Johnson Wesley Johnson Will Johnson Willard Johnson William Johnson Willie Johnson Wm Johnson
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