How many William Frost census records do you have?

We have 3519 US Census records for William Frost, from 1900 to 1950, across 50 states and DC.

What's in a William Frost census record?

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.

How do I use census records for family research?

Census records are a snapshot of a family every 10 years. You can follow William Frost'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.

Are William Frost census records free?

Yes. All William Frost census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.

Which census years and states cover William Frost?

We have William Frost records from the 1900 through 1950 US Federal Census, across 50 states and DC. Use the year and state filters to narrow your results.

How do I find William Frost in the census?

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.

What is the Model Tree for William Frost?

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.

Where does the census data come from?

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.

William Frost — US Census Records & Model Tree

We found 3519 free census records for William Frost across 6 census years (1900–1950), in 50 states and DC and 947 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Frost Census Records by State & County

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Showing of 3519 records for William Frost US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	William Frost		Shawnee, Kansas	Missouri	Laborer	Head
1930	William F Frost		Douglas, Oregon	England	Farmer	Head
1920	William H. Frost		Decatur, Iowa	Iowa	Farmer	Head
1940	William H. Frost	64	Hancock-County, Ohio	Pennsylvania	Trucking	Head
1940	William Frost	19	Fayette-County, Pennsylvania	Pennsylvania	Helper	Son
1900	William Frost	3	Butler, Alabama	Alabama	—	Son
1940	William L. Frost	14	Genesee-County, Michigan	Michigan	—	Son
1910	William H Frost		Phelps, Nebraska	Nebraska	Laborer	Son
1920	William S Frost		Marion, West Virginia	Pennsylvania	Pumper	Head
1940	William H. Jr. Frost	15	Jefferson-County, Alabama	Alabama	—	Son
1930	William Frost		Saginaw, Michigan	Michigan	—	Son
1910	William W. Frost		Penobscot, Maine	Maine	Contractor	Head
1900	William J Frost	3	Delaware, Iowa	Iowa	—	Son
1910	William Frost		Somerset, New Jersey	New Jersey	Laborer	Head
1940	William A. Frost	43	Ward-County, North Dakota	Iowa	Farmer	Head
1920	William A. Frost		Navajo, Arizona	Utah	Carpenter	Head
1940	William L. Frost	17	Carroll-County, Virginia	Virginia	New Worker	Son
1940	William H. Frost	15	Butler-County, Ohio	Ohio	—	Son
1910	William Frost		Napa, California	Missouri	Farmer	Head
1930	William J. Frost		Montgomery, Ohio	Ohio	None	Head
1910	William Frost		Scott, Arkansas	Alabama	Farmer	Head
1900	William B. Frost	60	Fayette, Pennsylvania	Pennsylvania	General Merchant	Head
1910	William B. Frost		Grant, New Mexico	New Mexico	Cowhand	Son
1930	William Frost		Mercer, New Jersey	New Jersey	Salesman	Son
1910	William Frost		Brown, Illinois	Illinois	Fisherman	Son
1930	William R. Frost		Lee, Mississippi	Mississippi	Store	Head
1930	William Frost		Hudson, New Jersey	New Jersey	—	Head
1900	William H. Frost	64	Essex, Massachusetts	Massachusetts	Boatman	Head
1910	William A Frost		Camden, New Jersey	New Jersey	Window Dresser	Son
1920	William Frost		Essex, Massachusetts	Maine	Blacksmith	Head

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About William Frost US Census Records & Model Tree

We've indexed 3519 free, proprietary US Census records for William Frost 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 3519 US Census records for William Frost, 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 Frost'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 Frost 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 Frost 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.