How many William Haines census records do you have?

We have 2978 US Census records for William Haines, from 1900 to 1950, across 48 states and DC.

What's in a William Haines 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 Haines'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 Haines census records free?

Yes. All William Haines 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 Haines?

We have William Haines records from the 1900 through 1950 US Federal Census, across 48 states and DC. Use the year and state filters to narrow your results.

How do I find William Haines 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 Haines?

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 Haines — US Census Records & Model Tree

We found 2978 free census records for William Haines across 6 census years (1900–1950), in 48 states and DC and 726 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Haines Census Records by State & County

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Showing of 2978 records for William Haines US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	William H Haines	20	Middlesex-County, Massachusetts	Massachusetts	New Worker	Son
1940	William Haines	37	Mercer-County, New Jersey	New Jersey	Plumber	Head
1920	William Haines		Carroll, Maryland	Maryland	Laborer	Head
1930	William Haines		Baltimore, Maryland	Maryland	Trackman	Head
1930	William Haines		Baltimore, Maryland	Maryland	City Buyer	Son
1930	William R Haines		Carroll, Maryland	Maryland	Laborer	Son
1920	William J Haines		Burlington, New Jersey	New Jersey	—	Son
1940	William Haines	14	Burlington-County, New Jersey	New Jersey	—	Son
1930	William Haines		Carroll, Maryland	Maryland	Farmer	Head
1940	William Jr. Haines	21	New-York-County, New York	New York City	Clerk	Son
1930	William Haines		Polk, Iowa	Iowa	—	Son
1900	William T Haines	37	Burlington, New Jersey	New Jersey	Farm Laborer	Head
1930	William Haines		Burlington, New Jersey	New Jersey	—	Son
1900	William Haines	42	Essex, New Jersey	New Jersey	Salesman Clothing	Head
1940	William Haines	35	Cook-County, Illinois	Mississippi	Ink Maker	Son
1930	William W Haines		Saline, Missouri	Ohio	None	Head
1910	William G Haines		Greene, Ohio	West Virginia	Farmer	Head
1910	William Haines		Kennebec, Maine	Maine	Laborer	Head
1940	William A. Haines	11	Middlesex-County, Massachusetts	Maine	—	Son
1900	William Haines	1	Alachua, Florida	Florida	—	Son
1940	William Haines	52	Onondaga-County, New York	England	Millwright	Head
1940	William Haines	46	Duval-County, Florida	Florida	Laborer	Head
1940	William N Haines	43	District-Of-Columbia-County, District of Columbia	Virginia	Operator	Head
1920	William Haines		Adams, Idaho	Missouri	Farmer	Head
1940	William Haines	47	Columbia-County, Florida	Florida	Guard	Head
1920	William E Haines		Washington, Colorado	Colorado	Laborer	Son
1930	William Haines		New York, New York	South Carolina	Waiter	Head
1920	William Haines		Lee, Virginia	North Carolina	Laborer	Head
1940	William J. Haines	53	Middlesex-County, Massachusetts	England	Fireman	Head
1910	William Haines		Camden, New Jersey	New Jersey	Farmer	Head

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About William Haines US Census Records & Model Tree

We've indexed 2978 free, proprietary US Census records for William Haines across 1900–1950, covering 48 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, 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 2978 US Census records for William Haines, from 1900 to 1950, across 48 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 Haines'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 Haines 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 Haines records from the 1900 through 1950 US Federal Census, across 48 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.