How many John Kaiser census records do you have?

We have 2998 US Census records for John Kaiser, from 1900 to 1950, across 46 states and DC.

What's in a John Kaiser 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 Kaiser'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 Kaiser census records free?

Yes. All John Kaiser 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 Kaiser?

We have John Kaiser records from the 1900 through 1950 US Federal Census, across 46 states and DC. Use the year and state filters to narrow your results.

How do I find John Kaiser 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 Kaiser?

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 Kaiser — US Census Records & Model Tree

We found 2998 free census records for John Kaiser across 6 census years (1900–1950), in 46 states and DC and 639 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Kaiser Census Records by State & County

Records per state:

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Showing of 2998 records for John Kaiser US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John J. Kaiser	39	Wyandotte-County, Kansas	Kansas	Machinist	Son
1920	John Kaiser		Monroe, New York	Germany	Engineer	Head
1940	John N. Kaiser	40	Milwaukee-County, Wisconsin	Wisconsin	Laborer	Head
1940	John Kaiser	12	Milwaukee-County, Wisconsin	Wisconsin	—	Son
1940	John Kaiser	62	Shelby-County, Illinois	Illinois	Farm Laborer	Head
1930	John Kaiser		Logan, North Dakota	North Dakota	None	Son
1940	John Robert Kaiser	15	Knox-County, Indiana	Indiana	—	Son
1920	John Kaiser		Tippecanoe, Indiana	Indiana	—	Son
1940	John Kaiser	37	New-York-County, New York	New York	Driver	Head
1940	John D. Kaiser	67	Wyandotte-County, Kansas	Kansas	—	Head
1940	John Kaiser	16	New-York-County, New York	New York	—	Son
1910	John N Kaiser		Adams, Nebraska	Nebraska	None	Son
1940	John Kaiser	53	Richland-County, North Dakota	Minnesota	Farming	Head
1940	John Kaiser	14	Dakota-County, Minnesota	Minnesota	—	Son
1940	John Kaiser	39	Douglas-County, Wisconsin	Minnesota	Laborer	Head
1940	John Kaiser	18	Trego-County, Kansas	Kansas	—	Son
1940	John Kaiser	13	Wayne-County, Michigan	Michigan	—	Son
1940	John Kaiser	48	Dakota-County, Minnesota	Hungary	Meat Trimmer	Head
1930	John Kaiser		Cook, Illinois	Germany	—	Head
1940	John Kaiser	19	Erie-County, New York	New York	New Worker	Son
1940	John Kaiser	25	Mcpherson-County, Kansas	Kansas	Farm Hand	Son
1930	John Kaiser		Cook, Illinois	Illinois	—	Son
1930	John C. Kaiser		Macomb, Michigan	Michigan	—	Son
1930	John H Kaiser		Miami, Kansas	Iowa	—	Son
1930	John C. Kaiser		Macomb, Michigan	Germany	Salesman	Head
1940	John C. Kaiser	50	Berks-County, Pennsylvania	Penna	Laborer	Head
1940	John Kaiser	23	Ripley-County, Indiana	Indiana	Farm Laborer	Son
1910	John Kaiser		Sac, Iowa	Germany	Farmer	Head
1940	John Kaiser	22	Bronx-County, New York	Germany	Grocery Clerk	Son
1940	John Jr. Kaiser	29	Phillips-County, Kansas	Kansas	Farmer	Son

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About John Kaiser US Census Records & Model Tree

We've indexed 2998 free, proprietary US Census records for John Kaiser across 1900–1950, covering 46 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 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 2998 US Census records for John Kaiser, from 1900 to 1950, across 46 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 Kaiser'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 Kaiser 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 Kaiser records from the 1900 through 1950 US Federal Census, across 46 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.