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Ralph King — US Census Records & Model Tree

We found 2923 free census records for Ralph King across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 939 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Ralph King Census Records by State & County

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Exact match:
Family Members (in same household)
Showing of 2923 records for Ralph King US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 Ralph E. King 22 Howard-County, Indiana Indiana Farmer Son
1930 Ralph C. King Madison, Indiana Illinois Tinner Head
1940 Ralph L. King 42 Hennepin-County, Minnesota Wisconsin Service Man Head
1940 Ralph King 32 Indiana-County, Pennsylvania Pennsylvania Laborer Head
1930 Ralph J. King Montgomery, Ohio Ohio Accountant Son
1940 Ralph King 50 O'Brien-County, Iowa South Dakota Laborer Son
1920 Ralph King Queens, New York New Jersey Butcher Head
1940 Ralph King 36 Franklin-County, Ohio Ohio Decorator Head
1940 Ralph M. King 27 Merrimack-County, New Hampshire New Hampshire Bookkeeper Head
1940 Ralph King 40 Camden-County, New Jersey New Jersey Superintendent Head
1930 Ralph King Adams, Illinois Illinois Manager Head
1940 Ralph King 50 Davis-County, Utah Utah Farmer Head
1940 Ralph King 13 Gibson-County, Tennessee Tennessee — Son
1920 Ralph King St Joseph, Michigan Michigan None Son
1940 Ralph King 18 Hillsborough-County, Florida Florida Laborer Son
1920 Ralph H King Mifflin, Pennsylvania Pennsylvania — Son
1940 Ralph King 37 Boone-County, Iowa Oklahoma Laborer Head
1930 Ralph King Somerset, Maryland Maryland — Son
1930 Ralph King Ware, Georgia Georgia None Son
1930 Ralph O. King Osceola, Florida Florida — Son
1940 Ralph King 23 St.-Louis-County, Minnesota Minnesota Laborer Son
1920 Ralph S. King Ward, North Dakota Missouri — Son
1910 Ralph King Belmont, Ohio Ohio — Son
1940 Ralph A. King 12 Warren-County, New Jersey New Jersey — Son
1910 Ralph King Brooks, Georgia Georgia Laborer Son
1910 Ralph S. King Allegheny, Pennsylvania Pennsylvania — Son
1940 Ralph King 12 Le-Flore-County, Oklahoma Oklahoma — Son
1940 Ralph J. King 24 Wayne-County, Ohio Pennsylvania Laborer Son
1940 Ralph King 19 Sebastian-County, Arkansas Arkansas Laborer Son
1940 Ralph F. King 18 Bristol-County, Massachusetts England — Son

About Ralph King US Census Records & Model Tree

We've indexed 2923 free, proprietary US Census records for Ralph King across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, 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, 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 Ralph 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 2923 US Census records for Ralph King, from 1900 to 1950, across 49 states, DC, and 1 territory.
You'll see Ralph'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 Ralph 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 Ralph 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 Ralph King records from the 1900 through 1950 US Federal Census, across 49 states, DC, and 1 territory. 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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