How many William Whalen census records do you have?

We have 3202 US Census records for William Whalen, from 1900 to 1950, across 50 states and DC.

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

Yes. All William Whalen 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 Whalen?

We have William Whalen 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 Whalen 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 Whalen?

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 Whalen — US Census Records & Model Tree

We found 3202 free census records for William Whalen across 6 census years (1900–1950), in 50 states and DC and 501 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Whalen Census Records by State & County

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Showing of 3202 records for William Whalen US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	William Whalen		Dane, Wisconsin	Wisconsin	Farmer	Head
1930	William Whalen		Berkshire, Massachusetts	Vermont	Laborer	Head
1930	William Whalen		Middlesex, Massachusetts	Massachusetts	—	Son
1930	William F Whalen		Bristol, Massachusetts	Massachusetts	Machinist	Son
1920	William Whalen		Bristol, Massachusetts	Massachusetts	Apprentice	Son
1920	William Whalen		Bristol, Massachusetts	Massachusetts	Painter	Head
1900	William Whalen	9	Saginaw, Michigan	Michigan	At School	Son
1930	William Jr Whalen		New York, New York	New York	None	Son
1940	William Whalen	27	Middlesex-County, Massachusetts	Massachusetts	Clerk	Son
1910	William Jr. Whalen		Northumberland, Pennsylvania	Pennsylvania	—	Son
1920	William Whalen		Silver Bow, Montana	Montana	Salesman	Son
1940	William Whalen	17	Clinton-County, Iowa	Iowa	—	Son
1920	William Whalen		Middlesex, New Jersey	New Jersey	Asst. Engineer	Son
1930	William H. Whalen		Camden, New Jersey	New Jersey	Helper	Son
1930	William J Jr Whalen		Philadelphia, Pennsylvania	Pennsylvania	Govt Clerk	Son
1930	William Whalen		Hudson, New Jersey	New Jersey	Police	Son
1940	William Jr Whalen	18	Hampden-County, Massachusetts	Massachusetts	New Worker	Son
1930	William Whalen		Hudson, New Jersey	Ireland	Checker	Head
1940	William Jr. Whalen	18	Cook-County, Illinois	Illinois	Order Checker	Son
1930	William T. Whalen		Peoria, Illinois	Illinois	Custodian	Head
1930	William Whalen		Middlesex, Massachusetts	Massachusetts	Clerk	Son
1900	William H Whalen	19	Windham, Vermont	Vermont	Plumber	Son
1900	William H Whalen	39	Bristol, Massachusetts	Rhode Island	Collector Of Jewelry	Head
1930	William Whalen		Erie, New York	England	Laborer	Head
1910	William Whalen		Middlesex, Massachusetts	Ireland	Laborer	Head
1940	William F. Whalen	77	Suffolk-County, Massachusetts	Massachusetts	—	Head
1930	William E. Whalen		Hennepin, Minnesota	Montana	Salesman	Head
1940	William Whalen	18	Rensselaer-County, New York	Massachusetts	Beam Cutter	Son
1930	William Jr Whalen		Cook, Illinois	Illinois	—	Son
1930	William S. Whalen		Latah, Idaho	Idaho	Laborer	Son

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About William Whalen US Census Records & Model Tree

We've indexed 3202 free, proprietary US Census records for William Whalen 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 3202 US Census records for William Whalen, 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 Whalen'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 Whalen 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 Whalen 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.

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