How many John Haas census records do you have?

We have 3235 US Census records for John Haas, from 1900 to 1950, across 47 states and DC.

What's in a John Haas census record?

You'll see John'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 John Haas'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 John Haas census records free?

Yes. All John Haas 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 John Haas?

We have John Haas records from the 1900 through 1950 US Federal Census, across 47 states and DC. Use the year and state filters to narrow your results.

How do I find John Haas 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 John Haas?

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.

John Haas — US Census Records & Model Tree

We found 3235 free census records for John Haas across 6 census years (1900–1950), in 47 states and DC and 632 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Haas Census Records by State & County

Records per state:

Census Record Search

First Name

Middle Name

Last Name (Required)

Census Year

State

Birth Year

Year Range

Birthplace

Age From

Age To

Exact match: Name Location Year

Alternate First Names (comma-separated)

Alternate Last Names (comma-separated)

County

Sex

Marital Status

Race

Relationship to Head

Occupation

Census Page ID

Family Members (in same household)

Search Records

Showing of 3235 records for John Haas US Census, ranked by Model Tree richness

No records match your filters.

Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Jr. Haas	26	Alameda-County, California	California	Operator	Son
1930	John Haas		Lee, Florida	Switzerland	Carpenter	Head
1940	John Haas	70	Queens-County, New York	Germany	Wholesale Bakery	Head
1940	John J. Haas	50	Mcintosh-County, North Dakota	North Dakota	Farmer	Head
1940	John @ Haas	78	Hennepin-County, Minnesota	Germany	—	Head
1940	John Haas	67	Dubois-County, Indiana	Indiana	Janitor	Head
1940	John Haas	67	Kenton-County, Kentucky	Kentucky	—	Head
1920	John Haas		Broadwater, Montana	Wisconsin	Farmer	Head
1940	John Haas	48	Scott-County, Iowa	Iowa	Poultry Man	Head
1930	John Haas		Nassau, New York	Denmark	Carpenter	Head
1940	John Haas	62	Philadelphia-County, Pennsylvania	Penna	Leather	Head
1930	John J. Haas		Tuscarawas, Ohio	Ohio	Hauling Contractor	Head
1910	John B. Haas		Los Angeles, California	California	Lawyer	Son
1940	John Haas	42	Caldwell-County, North Carolina	North Carolina	Farmer	Head
1940	John J. Haas	47	Box-Butte-County, Nebraska	Nebraska	84	Head
1930	John H. Jr. Haas		Allegheny, Pennsylvania	Pennsylvania	—	Son
1900	John W. Haas	11	Newport, Rhode Island	Rhode Island	—	Son
1930	John Haas		Clinton, Illinois	Illinois	Laborer	Head
1930	John Haas		St Tammany, Louisiana	Louisiana	—	Son
1940	John K Haas	11	Shelby-County, Iowa	Iowa	—	Son
1940	John Haas	66	Lawrence-County, Ohio	Ohio	—	Head
1920	John L. Haas		Burleigh, North Dakota	South Dakota	Laborer	Son
1940	John P. Haas	33	Sioux-County, Nebraska	Nebraska	Farmer	Son
1940	John Haas	14	Cuyahoga-County, Ohio	Ohio	0	Son
1940	John L. Haas	42	Lycoming-County, Pennsylvania	Pennsylvania	Labor	Head
1940	John A. Haas	27	Marion-County, Ohio	Ohio	Laborer	Son
1910	John Haas		Essex, New Jersey	New Jersey	Shipping Clerk	Head
1920	John E. Haas		Ripley, Indiana	Indiana	—	Son
1940	John Haas	38	Kenton-County, Kentucky	Kentucky	Foreman	Head
1940	John H Haas	21	Ramsey-County, Minnesota	Minnesota	Shipping Clerk	Son

Load More John Haas Census Records

About John Haas US Census Records & Model Tree

We've indexed 3235 free, proprietary US Census records for John Haas across 1900–1950, covering 47 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, 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, 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 John 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 3235 US Census records for John Haas, from 1900 to 1950, across 47 states and DC.
: You'll see John'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 John Haas'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 John Haas 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 John Haas records from the 1900 through 1950 US Federal Census, across 47 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.