How many William Hartman census records do you have?

We have 5452 US Census records for William Hartman, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All William Hartman 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 Hartman?

We have William Hartman 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 Hartman 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 Hartman?

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 Hartman — US Census Records & Model Tree

We found 5452 free census records for William Hartman across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 931 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

William Hartman Census Records by State & County

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Showing of 5452 records for William Hartman US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	William Hartman	40	Ripley-County, Indiana	Indiana	Farm Labor	Head
1930	William H. Hartman		Albany, New York	New York	Machinist	Son
1940	William Hartman	30	Allegheny-County, Pennsylvania	Pennsylvania	Clerk	Head
1930	William Hartman		New York, New York	New York	Tailor	Son
1940	William Hartman	25	Middlesex-County, New Jersey	New Jersey	Electrician Helper	Son
1940	William Hartman	33	Allegheny-County, Pennsylvania	Pennsylvania	Truck Driver	Head
1940	William R Hartman	30	Clermont-County, Ohio	Ohio	Truck Driver	Head
1930	William T Hartman		Hennepin, Minnesota	Minnesota	None	Son
1940	William Hartman	22	Clermont-County, Ohio	Ohio	Farm Operator	Son
1940	William L. Hartman	33	Cook-County, Illinois	Illinois	Accountant	Son
1940	William Hartman	42	Berks-County, Pennsylvania	Pennsylvania	Molder	Head
1940	William Hartman	65	Williams-County, North Dakota	Minnesota	Farmer	Head
1930	William Hartman		Licking, Ohio	Ohio	Farmer	Head
1930	William M. Hartman		Mcdonough, Illinois	Wisconsin	Doctor	Head
1940	William M. Hartman	77	Columbia-County, Pennsylvania	Pennsylvania	—	Head
1930	William Hartman		Will, Illinois	Illinois	Retail Merchant	Head
1940	William Hartman	55	Erie-County, New York	New York	Candy Business	Head
1930	William Hartman		Berks, Pennsylvania	Pennsylvania	Candy Maker	Son
1930	William Hartman		Alpena, Michigan	Michigan	—	Daughter
1930	William Hartman		Harris, Texas	Illinois	Machinist	Head
1930	William Hartman		Erie, Pennsylvania	Pennsylvania	—	Son
1930	William C Hartman		Kiowa, Oklahoma	Missouri	Engine Watchman	Head
1910	William Hartman		Champaign, Illinois	Illinois	—	Son
1930	William Hartman		Kings, New York	New York	Messenger	Son
1910	William Hartman		Hampshire, West Virginia	West Virginia	Laborer	Son
1920	William Hartman		Philadelphia, Pennsylvania	Pennsylvania	—	Son
1910	William H Hartman		Columbia, Pennsylvania	Pennsylvania	Farmer	Head
1930	William Hartman		Nassau, New York	New York	—	Son
1910	William Hartman		New York, New York	New Jersey	Fireman	Head
1910	William L Hartman		Luzerne, Pennsylvania	Pennsylvania	Physician	Head

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About William Hartman US Census Records & Model Tree

We've indexed 5452 free, proprietary US Census records for William Hartman 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 5452 US Census records for William Hartman, 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 Hartman'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 Hartman 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 Hartman 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.

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