How many William Alexander census records do you have?

We have 11987 US Census records for William Alexander, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All William Alexander 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 Alexander?

We have William Alexander records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find William Alexander 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 Alexander?

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 Alexander — US Census Records & Model Tree

We found 11987 free census records for William Alexander across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1875 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 11987 records for William Alexander US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	William Alexander		Hart, Georgia	Georgia	Farm Laborer	Son
1930	William Jr. Alexander		Sangamon, Illinois	Illinois	—	Son
1930	William Alexander		Kershaw, South Carolina	South Carolina	Farmer	Head
1940	William Alexander	26	Summit-County, Ohio	Pennsylvania	Circulation Manager	Son
1940	William Alexander	29	Uintah-County, Utah	Wyoming	Shearing Sheep	Head
1930	William R. Jr. Alexander		York, South Carolina	South Carolina	—	Son
1930	William Alexander		Williamson, Tennessee	Tennessee	Farm Laborer	Son
1930	William Alexander		Henrico, Virginia	Virginia	—	Son
1940	William Jr. Alexander	23	Livingston-County, Michigan	Michigan	Farm Laborer	Son
1920	William C Alexander		Union, Oregon	Missouri	Farmer	Son
1940	William Alexander	27	Allegheny-County, Pennsylvania	Pennsylvania	Truck Driver	Head
1920	William Alexander		Mecklenburg, Virginia	Virginia	Farmer	Son
1920	William Alexander		Jefferson, Alabama	Alabama	—	Son
1940	William Alexander	33	Jeff-Davis-County, Georgia	Georgia	Salesman	Son
1930	William Alexander		Martin, North Carolina	North Carolina	Mac	Son
1920	William Alexander		Wilkes, North Carolina	North Carolina	—	Head
1910	William B Alexander		Washington, Arkansas	Tennessee	Farmer	Head
1940	William Alexander	67	Adams-County, Nebraska	Illinois	Bookkeeper	Head
1930	William Alexander		Middlesex, Massachusetts	Scotland	Watchman	Head
1910	William M Alexander		Henry, Tennessee	Tennessee	Sackman	Head
1940	William Alexander	46	Rutherford-County, Tennessee	Tennessee	Laborer	Head
1920	William Alexander		Allegheny, Pennsylvania	Pennsylvania	Laborer Car Shop	Head
1940	William Alexander	59	Jefferson-County, Kentucky	Louisiana	Steam Keeper	Head
1940	William Alexander	60	Pickens-County, South Carolina	South Carolina	Laborer	Head
1940	William Alexander	44	New-York-County, New York	Florida	Labour	Head
1940	William B Alexander	62	Kershaw-County, South Carolina	South Carolina	Farmer	Head
1900	William Alexander	30	Mecklenburg, North Carolina	North Carolina	Farm Labor	Head
1910	William L. Alexander		Mecklenburg, North Carolina	North Carolina	—	Head
1940	William H. Alexander	56	Livingston-County, Michigan	Michigan	Farmer	Head
1920	William S Alexander		Mecklenburg, North Carolina	North Carolina	Farmer	Head

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About William Alexander US Census Records & Model Tree

We've indexed 11987 free, proprietary US Census records for William Alexander across 1900–1950, covering 50 states, DC, and 1 territory: Alabama, Alaska, 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 11987 US Census records for William Alexander, from 1900 to 1950, across 50 states, DC, and 1 territory.
: 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 Alexander'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 Alexander 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 Alexander records from the 1900 through 1950 US Federal Census, across 50 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.