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William Sims — US Census Records & Model Tree

We found 4294 free census records for William Sims across 6 census years (1900–1950), in 49 states and DC and 1148 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Sims Census Records by State & County

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Family Members (in same household)
Showing of 4294 records for William Sims US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1920 William Sims Fulton, Georgia Georgia Laborer Son
1920 William O. Sims Faulkner, Arkansas Arkansas Farmer Head
1920 William Sims Union, North Carolina North Carolina Farming Head
1920 William Sims Jefferson, Alabama Alabama — Son
1930 William O Sims Monroe, Indiana Indiana — Son
1930 William W. Sims Greenville, South Carolina South Carolina Policeman Head
1920 William C. Sims Sacramento, California California Student Son
1940 William R. Sims 27 York-County, South Carolina South Carolina Attendant Son
1940 William E Sims 22 Baltimore-City-County, Maryland Maryland Clerk Son
1940 William Sims 24 Lancaster-County, South Carolina South Carolina Warp Weaver Head
1940 William Ed. Sims 26 Monroe-County, Missouri Missouri Farming Son
1940 William Sims 31 Duval-County, Florida Florida Laborer Son
1920 William Sims Cooke, Texas Alabama Farmer Head
1920 William B Sims Ouachita, Louisiana Louisiana Farmer Head
1930 William Sims Logan, Oklahoma Kentucky Farmer Head
1930 William N Sims Hardeman, Texas Missouri Manager Head
1920 William H. Sims Orleans, Louisiana Alabama Watchman Head
1920 William G Sims Lewis, West Virginia West Virginia Farmer Head
1940 William E. Sims 52 Fulton-County, Georgia Georgia Salesman Head
1940 William H. Sims 74 Sullivan-County, Indiana Indiana — Head
1920 William Sims Hamilton, Indiana Indiana — Head
1900 William Sims 28 Brooks, Georgia Georgia Farmer Head
1930 William Sims Greenville, South Carolina South Carolina Laborer Son
1910 William Sims Jasper, Georgia Georgia Laborer Son
1900 William S. Sims 13 Pope, Arkansas Arkansas Farm Laborer Son
1920 William Sims None, None South Carolina Farmer Head
1910 William Jr Sims Orange, Florida Florida None Son
1900 William Sims 7 Kemper, Mississippi Mississippi — Son
1910 William S Sims Orange, Florida Florida Laborer Head
1910 William Sims Anderson, South Carolina South Carolina Farmer Head

About William Sims US Census Records & Model Tree

We've indexed 4294 free, proprietary US Census records for William Sims 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, 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, 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 William 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 4294 US Census records for William Sims, from 1900 to 1950, across 49 states and DC.
You'll see William'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 William Sims'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 William Sims 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 William Sims 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.
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