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William King — US Census Records & Model Tree

We found 29250 free census records for William King across 6 census years (1900–1950), in 50 states, DC, and 2 territories and 2464 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William King Census Records by State & County

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Family Members (in same household)
Showing of 29250 records for William King US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1910 William J. King Baltimore, Maryland Maryland — Son
1910 William King Muscogee, Georgia Georgia Farm Laborer Son
1900 William King Colorado, Texas Texas — Son
1910 William King Knox, Illinois Illinois — Son
1940 William C. King 30 Riley-County, Kansas Kansas Farmer Head
1940 William S. King 34 Rush-County, Indiana Indiana Farmer Head
1920 William J. King Pacific, Washington Washington Chaser Son
1910 William L. King Franklin, Arkansas Arkansas Farm Labor Son
1920 William E. King Allegheny, Pennsylvania Pennsylvania Teamster Son
1920 William P. King Monmouth, New Jersey New Jersey Salesman Son
1920 William King Casey, Kentucky Kentucky Farmer Head
1930 William L. King Linn, Iowa Iowa None Son
1910 William King Lenoir, North Carolina North Carolina — Son
1940 William King 29 Hale-County, Alabama Alabama Farmer Head
1940 William King 27 Polk-County, Iowa Iowa Tree Scout Head
1930 William King Dubuque, Iowa Iowa — Son
1920 William King Sharkey, Mississippi North Carolina Farmer Head
1920 William King Salem, New Jersey New Jersey Farmer Head
1920 William A King Hennepin, Minnesota Minnesota Clerk Son
1920 William B Jr King Orange, New York New York Machinist Son
1940 William King 26 Shawnee-County, Kansas Kansas Labor Son
1940 William King 23 Lucas-County, Ohio Ohio Meter Reader Son
1920 William M. King Wayne, Michigan Maine Laborer Son
1940 William King 40 Marshall-County, Kansas Kansas Laborer Son
1940 William J. King 30 Appanoose-County, Iowa Iowa Truck Driver Head
1940 William H. King 27 Camden-County, New Jersey New Jersey Mechanical Engineer Son
1940 William D. King 44 Caddo-County, Oklahoma Oregon Farmer Head
1920 William King Philadelphia, Pennsylvania Pennsylvania Manager Son
1940 William King 32 Bibb-County, Georgia Georgia Truck Driver Head
1920 William King Fayette, Pennsylvania Pennsylvania Fireman Head

About William King US Census Records & Model Tree

We've indexed 29250 free, proprietary US Census records for William King across 1900–1950, covering 50 states, DC, and 2 territories: Alabama, Alaska, American Samoa, 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, 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 29250 US Census records for William King, from 1900 to 1950, across 50 states, DC, and 2 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 King'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 King 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 King records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 2 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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