How many Harold Hill census records do you have?

We have 3856 US Census records for Harold Hill, from 1900 to 1950, across 49 states, DC, and 1 territory.

What's in a Harold Hill census record?

You'll see Harold'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 Harold Hill'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 Harold Hill census records free?

Yes. All Harold Hill 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 Harold Hill?

We have Harold Hill records from the 1900 through 1950 US Federal Census, across 49 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find Harold Hill 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 Harold Hill?

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.

Harold Hill — US Census Records & Model Tree

We found 3856 free census records for Harold Hill across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 1120 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Harold Hill Census Records by State & County

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Showing of 3856 records for Harold Hill US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Harold Hill	29	Oakland-County, Michigan	Michigan	Spot Welder	Son
1940	Harold Hill	33	Tucker-County, West Virginia	West Virginia	Time Keeper	Head
1940	Harold V Hill	35	Putnam-County, Indiana	Indiana	Finish Mill-Stripper	Son
1940	Harold Hill	26	Middlesex-County, Massachusetts	Massachusetts	Agent	Son
1940	Harold Hill	20	Harford-County, Maryland	Maryland	Farm Hand	Son
1940	Harold Hill	23	Suffolk-County, Massachusetts	Massachusetts	Stamper	Son
1940	Harold B. Hill	24	Plymouth-County, Massachusetts	Rhode Island	Farm Hand	Son
1940	Harold Hill	20	Mclean-County, Illinois	Illinois	Mach. Appt	Son
1940	Harold Hill	45	Adams-County, Iowa	Iowa	Farming	Head
1940	Harold Hill	23	Polk-County, Iowa	Iowa	Wood-Worker	Son
1940	Harold Hill	25	Vermilion-County, Illinois	Illinois	Salesman	Son
1940	Harold C. Hill	30	Mitchell-County, Kansas	Kansas	Salesman	Head
1940	Harold Hill	27	Livingston-County, New York	New York	Farmer	Son
1940	Harold Hill	31	Henry-County, Illinois	Illinois	Upholsterer	Head
1940	Harold Hill	25	Schuylkill-County, Pennsylvania	Pennsylvania	Laborer	Head
1930	Harold W. Hill		Plymouth, Massachusetts	Massachusetts	Laborer	Son
1940	Harold W. Hill	61	Cuyahoga-County, Ohio	England	Meat Cutter	Head
1940	Harold S. Hill	17	Charles-County, Maryland	Maryland	Laborer	Son
1910	Harold D. Hill		Berks, Pennsylvania	Pennsylvania	Piling	Son
1920	Harold Hill		Klamath, Oregon	Oregon	None	Son
1940	Harold Hill	15	Lake-County, Florida	Florida	—	Son
1940	Harold Hill	28	Wayne-County, Michigan	Michigan	Mail Clerk	Son
1940	Harold W. Hill	12	Los-Angeles-County, California	California	—	Son
1910	Harold Hill		Orange, New York	New York	Driver	Son
1920	Harold Hill		Monroe, New York	New York	Laborer	Son
1920	Harold Hill		Suffolk, Massachusetts	Massachusetts	Box Maker	Son
1930	Harold Hill		St Clair, Illinois	Illinois	—	Son
1940	Harold T Hill	12	Cassia-County, Idaho	Idaho	—	Son
1930	Harold Hill		Neosho, Kansas	Kansas	Laborer	Son
1940	Harold Hill	11	Washington-County, Virginia	Virginia	—	Son

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About Harold Hill US Census Records & Model Tree

We've indexed 3856 free, proprietary US Census records for Harold Hill across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, 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 Harold 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 3856 US Census records for Harold Hill, from 1900 to 1950, across 49 states, DC, and 1 territory.
: You'll see Harold'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 Harold Hill'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 Harold Hill 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 Harold Hill records from the 1900 through 1950 US Federal Census, across 49 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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