How many James Lambert census records do you have?

We have 4994 US Census records for James Lambert, from 1900 to 1950, across 48 states and DC.

What's in a James Lambert 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 Lambert'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 Lambert census records free?

Yes. All James Lambert 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 Lambert?

We have James Lambert records from the 1900 through 1950 US Federal Census, across 48 states and DC. Use the year and state filters to narrow your results.

How do I find James Lambert 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 Lambert?

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 Lambert — US Census Records & Model Tree

We found 4994 free census records for James Lambert across 6 census years (1900–1950), in 48 states and DC and 1226 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

James Lambert Census Records by State & County

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Showing of 4994 records for James Lambert US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	James Lambert	40	Franklin-County, Ohio	Ohio	Messenger	Head
1930	James Lambert		Delaware, Indiana	Indiana	Laborer	Son
1940	James Lambert	27	Essex-County, Massachusetts	Massachusetts	—	Son
1940	James Lambert	61	Lee-County, Virginia	Virginia	Farmer	Head
1920	James S. Lambert		Larimer, Colorado	Indiana	Farmer	Head
1920	James Lambert		Somerset, Pennsylvania	Pennsylvania	Farmer	Head
1940	James D. Lambert	68	Poinsett-County, Arkansas	England	Farmer	Head
1930	James B Lambert		Claiborne, Tennessee	Tennessee	Farmer	Head
1920	James H Lambert		Edmonson, Kentucky	Kentucky	Farmer	Head
1930	James A. Lambert		Union, Illinois	Illinois	Un	Head
1940	James Lambert	13	York-County, Pennsylvania	Pennsylvania	—	Son
1940	James Alvin Lambert	13	Denton-County, Texas	Texas	—	Son
1910	James H. Lambert		Fulton, Georgia	Georgia	Farmer	Head
1910	James A Lambert		Ouachita, Arkansas	Arkansas	Farm Laborer	Son
1940	James C. Lambert	12	Tazewell-County, Virginia	Virginia	—	Son
1940	James Lambert	14	Jackson-County, Ohio	Ohio	—	Son
1940	James Lambert	11	Lawrence-County, Mississippi	Mississippi	—	Son
1930	James H Lambert		Ouachita, Arkansas	Arkansas	—	Son
1910	James L Lambert		Cabarrus, North Carolina	North Carolina	Farmer	Head
1930	James Lambert		Dallas, Texas	Texas	Mechanic	Son
1940	James Lambert	12	Mercer-County, West Virginia	Virginia	—	Son
1930	James Lambert		Tazewell, Virginia	Virginia	Laborer	Son
1920	James Lambert		Mccurtain, Oklahoma	Arkansas	None	Son
1940	James Lambert	16	Alamance-County, North Carolina	North Carolina	Farm Laborer	Son
1910	James F Lambert		Wayne, West Virginia	West Virginia	Farmer	Head
1940	James Lambert	12	Calcasieu-County, Louisiana	Louisiana	—	Son
1940	James Lambert	11	Mecklenburg-County, Virginia	Virginia	—	Son
1920	James Lambert		Fauquier, Virginia	Virginia	Laborer	Son
1920	James F Lambert		Hunterdon, New Jersey	New Jersey	Farmer	Head
1920	James Lambert		Stanly, North Carolina	North Carolina	—	Son

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About James Lambert US Census Records & Model Tree

We've indexed 4994 free, proprietary US Census records for James Lambert across 1900–1950, covering 48 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, 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 4994 US Census records for James Lambert, from 1900 to 1950, across 48 states and DC.
: 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 Lambert'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 Lambert 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 Lambert records from the 1900 through 1950 US Federal Census, across 48 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.