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William Rich — US Census Records & Model Tree

We found 3916 free census records for William Rich across 6 census years (1900–1950), in 50 states and DC and 1044 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Rich Census Records by State & County

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Census Record Search

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Family Members (in same household)
Showing of 3916 records for William Rich US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 William Rich 27 Haywood-County, North Carolina North Carolina Laborer Son
1940 William Rich 75 Cook-County, Illinois Germany — Head
1930 William Rich Kent, Michigan Michigan Driver Son
1940 William Rich 33 Mercer-County, New Jersey New Jersey Foreman Head
1930 William T Rich Middlesex, Massachusetts Massachusetts Salesman-Prop Head
1940 William H. Rich 23 Cattaraugus-County, New York New York Machinist Head
1920 William S Rich Randolph, North Carolina North Carolina Farmer Head
1920 William Rich Washington, Arkansas Arkansas Farmer Head
1930 William J. Rich Marion, Tennessee Tennessee — Son
1940 William Earl Rich 12 Wyandotte-County, Kansas Kansas — Son
1900 William Rich 38 Fremont, Idaho Utah Farmer Head
1910 William Rich Union, Illinois Illinois Farmer Head
1910 William Rich Carroll, Tennessee Tennessee Farming Head
1910 William Rich Kershaw, South Carolina South Carolina Farm Laborer Son
1910 William Rich Cook, Illinois Illinois — Son
1910 William Rich Caroline, Maryland Maryland Labour Head
1920 William Rich Essex, Massachusetts Massachusetts — Son
1900 William L. Rich 42 Alamance, North Carolina North Carolina Farmer Head
1910 William F Rich Bosque, Texas Texas Laborer Son
1940 William Rich 30 Monmouth-County, New Jersey New Jersey Painter House Son
1910 William H. Rich Salt Lake, Utah Utah — Son
1930 William Rich Marshall, Alabama Alabama — Son
1920 William Rich Dorchester, Maryland Maryland — Son
1930 William Rich Lancaster, Virginia Virginia Laborer Head
1910 William H Rich Dorchester, Maryland Maryland — Son
1920 William G Rich Caroline, Maryland Maryland Laborer Husband
1930 William B. Rich Wayne, Michigan Michigan — Son
1940 William Rich 17 Wayne-County, Michigan Michigan — Son
1940 William W. Rich 11 Riverside-County, California California — Son
1930 William Rich Lee, Arkansas Arkansas Farmer Head

About William Rich US Census Records & Model Tree

We've indexed 3916 free, proprietary US Census records for William Rich 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 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 3916 US Census records for William Rich, from 1900 to 1950, across 50 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 Rich'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 Rich 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 Rich 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.
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