How many James Warren census records do you have?

We have 8117 US Census records for James Warren, from 1900 to 1950, across 50 states, DC, and 1 territory.

What's in a James Warren census record?

You'll see James'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 James Warren'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 James Warren census records free?

Yes. All James Warren 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 James Warren?

We have James Warren 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 James Warren 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 James Warren?

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.

James Warren — US Census Records & Model Tree

We found 8117 free census records for James Warren across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1591 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 8117 records for James Warren US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	James W. Warren	39	Southampton-County, Virginia	Virginia	Farmer	Head
1940	James Jr. Warren	20	Hamilton-County, Ohio	Ohio	—	Son
1940	James Carl Warren	26	Boone-County, West Virginia	West Virginia	Coal Loader	Son
1930	James Warren		Washington, Mississippi	Mississippi	Farming	Head
1940	James Warren	24	Multnomah-County, Oregon	Missouri	Night-Clerk	Son
1940	James H. Jr. Warren	26	Salt-Lake-County, Utah	Utah	Laborer	Son
1940	James Warren	26	Guilford-County, North Carolina	North Carolina	Janitor	Head
1940	James A Warren	48	Cumberland-County, Maine	Maine	Carpenter	Head
1920	James M Warren		Mills, Texas	Alabama	Farmer	Head
1940	James T Warren	74	Henry-County, Virginia	Virginia	Farmer	Head
1920	James H. Warren		Garfield, Nebraska	Illinois	Farmer	Head
1940	James Warren	52	Charleston-County, South Carolina	South Carolina	Laborer	Head
1920	James Warren		Butte, California	Canada	Farmer	Head
1940	James Warren	24	Green-County, Kentucky	Kentucky	Farm Laborer	Son
1940	James Warren	11	Lawrence-County, Indiana	Indiana	—	Son
1940	James Warren	13	Chilton-County, Alabama	Alabama	—	Son
1930	James Warren		Alamance, North Carolina	North Carolina	Truck Driver	Son
1930	James W. Warren		Marion, Indiana	Indiana	—	Son
1930	James L. Warren		Newberry, South Carolina	South Carolina	Weaver	Son
1940	James D. Warren	43	New-Madrid-County, Missouri	Arkansas	Farmer	Head
1940	James Warren	14	St.-Joseph-County, Indiana	Indiana	—	Son
1940	James Warren	15	Martin-County, Indiana	Indiana	—	Son
1920	James G Warren		Chilton, Alabama	Alabama	Farmer	Head
1940	James R Warren	11	Charleston-County, South Carolina	South Carolina	—	Son
1940	James Warren	20	Caddo-County, Louisiana	Louisiana	—	Son
1940	James Warren	23	Middlesex-County, Massachusetts	Massachusetts	Domestic	Son
1940	James Warren	15	Iredell-County, North Carolina	North Carolina	—	Son
1930	James L. Warren		York, South Carolina	South Carolina	Oiler	Son
1910	James L Warren		Williamson, Tennessee	Tennessee	Blacksmith	Head
1910	James E. Warren		Bryan, Georgia	Georgia	Dentist	Head

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About James Warren US Census Records & Model Tree

We've indexed 8117 free, proprietary US Census records for James Warren 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 James 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 8117 US Census records for James Warren, from 1900 to 1950, across 50 states, DC, and 1 territory.
: You'll see James'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 James Warren'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 James Warren 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 James Warren 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.