How many John Nelson census records do you have?

We have 36677 US Census records for John Nelson, from 1900 to 1950, across 50 states, DC, and 2 territories.

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

Yes. All John Nelson 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 Nelson?

We have John Nelson records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 2 territories. Use the year and state filters to narrow your results.

How do I find John Nelson 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 Nelson?

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 Nelson — US Census Records & Model Tree

We found 36677 free census records for John Nelson across 6 census years (1900–1950), in 50 states, DC, and 2 territories and 2521 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Nelson Census Records by State & County

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Showing of 36677 records for John Nelson US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Jr. Nelson	31	Ottawa-County, Kansas	Kansas	Farming	Head
1940	John J Nelson	26	Cedar-County, Nebraska	Nebraska	Farm Laborer	Son
1920	John E Nelson		Suffolk, Massachusetts	Massachusetts	—	Son
1940	John Nelson	23	Linn-County, Iowa	Iowa	Delivery Boy	Son
1940	John Nelson	39	Morgan-County, Colorado	Colorado	Shoemaker	Head
1940	John Nelson	38	Providence-County, Rhode Island	Rhode Island	Sorter	Head
1940	John Nelson	31	Camden-County, New Jersey	Pennsylvania	Expert	Head
1940	John E. Nelson	22	Baltimore-City-County, Maryland	Maryland	Cab Driver	Son
1940	John L. Nelson	22	Ellis-County, Texas	Tennessee	Attendant	Son
1940	John A. Nelson	21	Worcester-County, Massachusetts	Massachusetts	Electrician	Son
1940	John Jr. Nelson	34	Essex-County, Massachusetts	Scotland	Machinist	Head
1920	John C. Nelson		King, Washington	Washington	Radio Operator	Son
1940	John B Nelson	35	King-County, Washington	Washington	Bartender	Head
1920	John R. Nelson		San Diego, California	California	Machinist	Son
1940	John Nelson	26	Kitsap-County, Washington	Washington	Farmer	Son
1940	John H. Nelson	42	Hudson-County, New Jersey	New Jersey	Pattern Maker	Head
1940	John O Nelson	26	Jackson-County, Missouri	Missouri	Mechanic	Head
1940	John M. Iii Nelson	21	Baltimore-County, Maryland	Rhode Island	—	Son
1940	John Nelson	27	Cook-County, Illinois	Mississippi	Operator	Son
1940	John H. Nelson	50	Clay-County, Minnesota	North Dakota	Farmer	Head
1940	John N Nelson	24	Middlesex-County, Massachusetts	Massachusetts	Machinist	Son
1940	John P. Nelson	49	Baltimore-City-County, Maryland	Maryland	—	Son
1940	John Nelson	22	Berkeley-County, South Carolina	South Carolina	—	Son
1940	John E. Nelson	53	Mcpherson-County, Kansas	Kansas	Farmer	Head
1920	John Alfred Nelson		Saline, Kansas	Kansas	Farmer	Head
1930	John P. Nelson		Grant, Minnesota	Sweden	Farmer	Head
1920	John P Nelson		Dickey, North Dakota	Sweden	Farmer	Head
1920	John E. Nelson		Morrison, Minnesota	Wisconsin	Farmer	Head
1920	John T. Nelson		Stokes, North Carolina	North Carolina	Farmer	Head
1940	John H Nelson	58	White-County, Indiana	Indiana	Farmer	Head

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About John Nelson US Census Records & Model Tree

We've indexed 36677 free, proprietary US Census records for John Nelson across 1900–1950, covering 50 states, DC, and 2 territories: 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, Puerto Rico, 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 36677 US Census records for John Nelson, from 1900 to 1950, across 50 states, DC, and 2 territories.
: 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 Nelson'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 Nelson 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 Nelson records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 2 territories. 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.