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William Richardson — US Census Records & Model Tree

We found 13876 free census records for William Richardson across 6 census years (1900–1950), in 50 states, DC, and 3 territories and 1985 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Richardson Census Records by State & County

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Family Members (in same household)
Showing of 13876 records for William Richardson US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1910 William Richardson Floyd, Georgia Georgia — Son
1940 William Richardson 40 Madison-County, Illinois Indiana Supply Man Head
1920 William Richardson Marion, South Carolina South Carolina — Son
1920 William Richardson Marion, South Carolina South Carolina — Son
1930 William Richardson Carbon, Montana Montana Farmer Son
1940 William Jr. Richardson 22 Baltimore-City-County, Maryland Maryland Salesman Son
1900 William Richardson Kings, New York New York — Son
1930 William Richardson Queens, New York New York Clerk Son
1940 William Richardson 29 Talladega-County, Alabama Alabama Apprentice Son
1940 William Richardson 26 Cobb-County, Georgia Georgia Helper Son
1940 William Jr Richardson 23 Jefferson-County, Arkansas Arkansas Farmer Head
1930 William Richardson Nash, North Carolina North Carolina Farmer Head
1940 William Richardson 27 Kings-County, New York New York Machine Operator Son
1920 William Richardson Charleston, South Carolina South Carolina — Son
1940 William A Richardson 24 Hinds-County, Mississippi Mississippi Laborer Head
1940 William Richardson 24 Kings-County, New York New York Elev. Oper. Son
1920 William Richardson Hoke, North Carolina North Carolina Farm Labor Son
1930 William B. Richardson Essex, Massachusetts Massachusetts Salesman Son
1940 William Richardson 27 Passaic-County, New Jersey New Jersey Est. Clerk Son
1930 William N. Richardson Whitfield, Georgia Georgia Farmer Head
1930 William Richardson Middlesex, Massachusetts New Hampshire Cutter Head
1930 William Richardson Middlesex, Massachusetts Massachusetts Laborer Head
1940 William P. Richardson 57 Orleans-County, Louisiana Louisiana Laborer Head
1920 William Richardson Randolph, North Carolina North Carolina Retail Merchant Head
1910 William S Richardson Fulton, Georgia Scotland Book Keeper Head
1920 William H Richardson Weber, Utah Utah Policeman Head
1930 William H. Richardson Genesee, Michigan New York Salesman Head
1920 William Richardson Jones, Mississippi Mississippi Labor Head
1920 William J. Richardson Shelby, Illinois Illinois Agent Head
1940 William Richardson 56 Greene-County, Indiana Indiana Farmer Head

About William Richardson US Census Records & Model Tree

We've indexed 13876 free, proprietary US Census records for William Richardson across 1900–1950, covering 50 states, DC, and 3 territories: 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, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, 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 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 13876 US Census records for William Richardson, from 1900 to 1950, across 50 states, DC, and 3 territories.
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 Richardson'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 Richardson 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 Richardson records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 3 territories. 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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