How many John Cox census records do you have?

We have 14736 US Census records for John Cox, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All John Cox 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 Cox?

We have John Cox records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find John Cox 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 Cox?

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 Cox — US Census Records & Model Tree

We found 14736 free census records for John Cox across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 2081 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 14736 records for John Cox US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John Cox		Bell, Kentucky	Kentucky	None	Son
1940	John Jr Cox	20	Suffolk-County, Massachusetts	Massachusetts	Striker	Son
1940	John Cox	40	Horry-County, South Carolina	South Carolina	Farmer	Head
1940	John Cox	33	Randolph-County, Arkansas	Arkansas	Farmer	Head
1940	John E. Cox	23	Albany-County, New York	New York	Stock Clerk	Son
1920	John Cox		Leavenworth, Kansas	Kansas	Farmer	Son
1930	John S Cox		Anderson, South Carolina	South Carolina	Brakeman	Son
1940	John Cox	22	Knox-County, Tennessee	Tennessee	Clerk	Son
1940	John C. Cox	29	Delaware-County, Pennsylvania	Pennsylvania	Truck Driver	Son
1940	John H. Cox	48	Randolph-County, Missouri	Missouri	Farmer	Head
1940	John S. Cox	44	St.-Joseph-County, Michigan	Michigan	Vice Pres.	Head
1940	John E Cox	23	Greenville-County, South Carolina	South Carolina	Truck Driver	Son
1940	John Jr. Cox	29	Keokuk-County, Iowa	Iowa	Truck Driver	Head
1930	John A. Cox		Shelby, Tennessee	Mississippi	Letter Carrier	Son
1940	John Cox	41	Linn-County, Kansas	Kansas	Barber	Head
1940	John Cox	29	Washington-County, Maryland	Maryland	—	Son
1940	John Cox	24	Westchester-County, New York	New York	Truck Driver	Son
1920	John Cox		Barbour, Alabama	Alabama	Farmer	Head
1940	John H. Cox	26	Washington-County, Tennessee	Tennessee	Laborer	Head
1940	John Cox	29	Westchester-County, New York	New York	Retail Salesman	Son
1940	John H. Cox	74	Ashe-County, North Carolina	North Carolina	Operator	Head
1930	John G. Cox		Anderson, South Carolina	South Carolina	Farmer	Head
1940	John R. Cox	45	Mercer-County, New Jersey	New Jersey	Electrician	Head
1940	John Cox	49	Bartholomew-County, Indiana	Indiana	Log Cutter	Head
1940	John H. Cox	65	Emery-County, Utah	Utah	Farmer	Head
1940	John T. Cox	52	Shelby-County, Tennessee	Mississippi	Carpenter	Head
1940	John Cox	31	Neosho-County, Kansas	Kansas	Farmer	Head
1930	John Cox		Ashe, North Carolina	North Carolina	—	Head
1940	John A Cox	55	Wood-County, West Virginia	West Virginia	Wire Chief	Head
1940	John M. Cox	59	Cherokee-County, Georgia	Georgia	Farmer	Head

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About John Cox US Census Records & Model Tree

We've indexed 14736 free, proprietary US Census records for John Cox across 1900–1950, covering 50 states, DC, and 1 territory: 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, 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 14736 US Census records for John Cox, from 1900 to 1950, across 50 states, DC, and 1 territory.
: 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 Cox'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 Cox 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 Cox records from the 1900 through 1950 US Federal Census, across 50 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.

Other Cox US Census Records

Alice Cox Anna Cox Annie Cox Charles Cox Edward Cox Elizabeth Cox Frank Cox George Cox Henry Cox James Cox Joseph Cox Margaret Cox Mary Cox Robert Cox Ruth Cox Sarah Cox Thomas Cox Walter Cox William Cox

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