How many John Nichols census records do you have?

We have 9087 US Census records for John Nichols, from 1900 to 1950, across 50 states and DC.

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

Yes. All John Nichols 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 Nichols?

We have John Nichols 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 John Nichols 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 Nichols?

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 Nichols — US Census Records & Model Tree

We found 9087 free census records for John Nichols across 6 census years (1900–1950), in 50 states and DC and 1685 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Nichols Census Records by State & County

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Showing of 9087 records for John Nichols US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Nichols	25	Marion-County, Iowa	Iowa	Water Plant	Son
1940	John D. Nichols	22	Wilkes-County, North Carolina	North Carolina	Salesman	Son
1940	John R. Nichols	26	Clinton-County, Iowa	Iowa	Laborer	Son
1940	John Nichols	21	Vermillion-County, Indiana	Indiana	—	Son
1940	John R. Nichols	36	Wasco-County, Oregon	Oklahoma	Civil Engineer	Head
1940	John L. Nichols	32	Walworth-County, Wisconsin	Wisconsin	Farmer	Head
1930	John E Nichols		Newton, Mississippi	Mississippi	Laborer	Son
1920	John Nichols		Westchester, New York	New York	—	Son
1940	John A Nichols	28	Westchester-County, New York	New York	Contractor	Head
1940	John L. Nichols	23	Franklin-County, Massachusetts	Massachusetts	Florist	Son
1930	John Nichols		Cook, Illinois	Illinois	—	Son
1940	John W. Nichols	22	Lycoming-County, Pennsylvania	Pennsylvania	Farmer	Son
1920	John Nichols		Leavenworth, Kansas	Kansas	Well Digger	Son
1920	John Nichols		Cobb, Georgia	South Carolina	Farmer	Head
1930	John E. Nichols		Roane, West Virginia	West Virginia	Farmer	Head
1930	John J. Nichols		Broome, New York	Maine	Janitor	Head
1940	John Nichols	50	Owen-County, Indiana	Indiana	Truck	Head
1910	John T Nichols		Henrico, Virginia	Virginia	Carpenter	Head
1920	John H. Nichols		Macon, North Carolina	North Carolina	Farmer	Head
1940	John Nichols	48	Steuben-County, Indiana	Indiana	Farmer	Head
1940	John Nichols	40	Chatham-County, Georgia	Turkey	Proprietor	Head
1930	John Nichols		Shiawassee, Michigan	Poland	Dealer	Head
1920	John W. Nichols		Conecuh, Alabama	Alabama	—	Head
1940	John Nichols	65	New-Hanover-County, North Carolina	North Carolina	Merchant	Head
1940	John Nichols	55	Cook-County, Illinois	Greece	Proprietor	Head
1940	John W. O. Nichols	67	Barton-County, Kansas	Michigan	Caretaker	Head
1920	John R Nichols		Sullivan, Missouri	Missouri	Farmer	Head
1940	John A. Nichols	66	Union-County, Georgia	Georgia	Farming	Head
1940	John Nichols	54	Luzerne-County, Pennsylvania	England	Laborer	Head
1940	John Nichols	63	Hennepin-County, Minnesota	Norway	Cutter	Head

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About John Nichols US Census Records & Model Tree

We've indexed 9087 free, proprietary US Census records for John Nichols 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 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 9087 US Census records for John Nichols, from 1900 to 1950, across 50 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 Nichols'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 Nichols 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 Nichols 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.