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Louis Thompson — US Census Records & Model Tree

We found 3183 free census records for Louis Thompson across 6 census years (1900–1950), in 50 states and DC and 1061 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 3183 records for Louis Thompson US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1910 Louis H. Thompson Posey, Indiana Indiana Farmer Son
1920 Louis Thompson Broome, New York New York — Son
1940 Louis Donald Thompson 28 Logan-County, West Virginia West Virginia Presser Son
1940 Louis Thompson 33 Beaver-County, Utah Utah Labor Head
1930 Louis Thompson King, Washington Washington Heater Son
1900 Louis Thompson 52 Fulton, Illinois Illinois Real Estate & Loan Head
1940 Louis Thompson 52 Fairfield-County, Connecticut Norway Construction Supervisor Head
1930 Louis Thompson Bronx, New York Norway None Head
1940 Louis Thompson 53 Muskegon-County, Michigan New York Laborer & Caretaker Head
1920 Louis Thompson Shelby, Tennessee Tennessee Farmer Head
1910 Louis Thompson Essex, Massachusetts New Hampshire Carpenter Head
1920 Louis H. Thompson Franklin, Massachusetts Massachusetts Chauffeur Head
1940 Louis Thompson 73 Kitsap-County, Washington Norway Farm Proprietor Head
1930 Louis Thompson Kootenai, Idaho Minnesota Orchardist Head
1940 Louis Thompson 15 Marion-County, South Carolina South Carolina — Son
1930 Louis E. Thompson Vermilion, Illinois Illinois Packer Daughter
1930 Louis Thompson Allegheny, Pennsylvania Pennsylvania — Son
1940 Louis Thompson 52 Traill-County, North Dakota North Dakota Carpenter Head
1940 Louis Thompson 11 Kershaw-County, South Carolina South Carolina — Son
1940 Louis Thompson 36 Clinton-County, Iowa Iowa Brick Layer Head
1940 Louis D. Thompson 29 Adams-County, Idaho Idaho Laborer Head
1930 Louis Thompson Allendale, South Carolina South Carolina None Son
1940 Louis Thompson 53 Waupaca-County, Wisconsin Wisconsin Contractor Head
1920 Louis Thompson Fayette, Kentucky Kentucky — Son
1930 Louis Thompson Polk, Iowa Minnesota — Son
1910 Louis Thompson Pointe Coupee, Louisiana Louisiana Laborer Son
1940 Louis Thompson 49 Sangamon-County, Illinois Kentucky Laborer Head
1930 Louis D. Thompson Berkeley, West Virginia West Virginia — Son
1940 Louis D Thompson 16 Calloway-County, Kentucky Kentucky — Son
1940 Louis H. Thompson 13 Hancock-County, Iowa Iowa — Son
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About Louis Thompson US Census Records & Model Tree

We've indexed 3183 free, proprietary US Census records for Louis Thompson 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 Louis 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 3183 US Census records for Louis Thompson, from 1900 to 1950, across 50 states and DC.
You'll see Louis'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 Louis Thompson'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 Louis Thompson 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 Louis Thompson 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 Thompson US Census Records

Ada Thompson Agnes Thompson Albert Thompson Alfred Thompson Alice Thompson Andrew Thompson Anna Thompson Annie Thompson Arthur Thompson Barbara Thompson Bernice Thompson Bertha Thompson Bessie Thompson Betty Thompson Carl Thompson Carrie Thompson Catherine Thompson Charles Thompson Charlie Thompson Clara Thompson Clarence Thompson Cora Thompson David Thompson Donald Thompson Dora Thompson Doris Thompson Dorothy Thompson Earl Thompson Edith Thompson Edna Thompson Edward Thompson Elizabeth Thompson Ella Thompson Ellen Thompson Elmer Thompson Emma Thompson Ernest Thompson Ethel Thompson Eugene Thompson Eva Thompson Evelyn Thompson Florence Thompson Frances Thompson Francis Thompson Frank Thompson Fred Thompson George Thompson Gertrude Thompson Gladys Thompson Grace Thompson Harold Thompson Harry Thompson Hattie Thompson Hazel Thompson Helen Thompson Henry Thompson Herbert Thompson Howard Thompson Ida Thompson Irene Thompson Isaac Thompson Jack Thompson James Thompson Jane Thompson Jennie Thompson Jessie Thompson Joe Thompson John Thompson Joseph Thompson Julia Thompson Kenneth Thompson Laura Thompson Lillian Thompson Lillie Thompson Lizzie Thompson Lois Thompson Louise Thompson Lucy Thompson Lula Thompson Mabel Thompson Maggie Thompson Margaret Thompson Marie Thompson Marion Thompson Martha Thompson Mary Thompson Mattie Thompson Mildred Thompson Minnie Thompson Myrtle Thompson Nancy Thompson Nellie Thompson Oscar Thompson Paul Thompson Pearl Thompson Ralph Thompson Ray Thompson Raymond Thompson Richard Thompson Robert Thompson Rosa Thompson Roy Thompson Ruby Thompson Ruth Thompson Sam Thompson Samuel Thompson Sarah Thompson Thelma Thompson Theodore Thompson Thomas Thompson Virginia Thompson Walter Thompson William Thompson Willie Thompson
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