How many John Lambert census records do you have?

We have 6900 US Census records for John Lambert, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All John 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 John Lambert?

We have John Lambert 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 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 John 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.

John Lambert — US Census Records & Model Tree

We found 6900 free census records for John Lambert across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1422 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Lambert Census Records by State & County

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Showing of 6900 records for John Lambert US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John B Lambert		Fulton, Georgia	Georgia	Manager	Son
1940	John W Lambert	36	Greensville-County, Virginia	Virginia	Farming	Head
1930	John Lambert		Mcdowell, West Virginia	West Virginia	Off Bearer	Son
1940	John F Lambert	21	Licking-County, Ohio	Ohio	Home	Son
1940	John W Lambert	21	Carroll-County, Maryland	Maryland	Truck Driver	Son
1940	John J. Lambert	29	Hampden-County, Massachusetts	Georgia	Truck Driver	Head
1930	John W. Lambert		Guilford, North Carolina	North Carolina	Salesman	Head
1930	John W. Lambert		Franklin, Ohio	Ohio	—	Son
1930	John Lambert		Kings, New York	New York	—	Head
1940	John Lambert	79	Claiborne-County, Tennessee	Tennessee	—	Head
1940	John D. Lambert	69	Fayette-County, Pennsylvania	Pennsylvania	—	Head
1920	John H. Lambert		York, Pennsylvania	Maryland	Carpenter	Head
1940	John Lambert	73	Lucas-County, Ohio	Ohio	—	Head
1940	John T. Lambert	75	Hancock-County, Kentucky	Kentucky	Farmer	Head
1940	John Lambert	14	York-County, Pennsylvania	Pennsylvania	—	Son
1930	John Lambert		Tazewell, Virginia	Virginia	—	Son
1920	John Lambert		Tazewell, Virginia	Virginia	—	Son
1930	John Tom Lambert		Tazewell, Virginia	Virginia	—	Son
1930	John Lambert		Tazewell, Virginia	Virginia	—	Son
1940	John Lambert	16	Weber-County, Utah	Utah	—	Son
1910	John T Lambert		Clayton, Georgia	Georgia	Farmer	Head
1930	John R Lambert		Prentiss, Mississippi	Mississippi	—	Son
1940	John D. Lambert	12	Frederick-County, Maryland	Maryland	—	Son
1940	John F. Lambert	20	Carroll-County, Georgia	Georgia	Traffic Clerk	Son
1920	John Lambert		Chatham, North Carolina	North Carolina	—	Son
1940	John Lambert	21	Fulton-County, Georgia	Georgia	Office Clerk	Son
1940	John H Lambert	12	Georgetown-County, South Carolina	South Carolina	—	Son
1940	John Lambert	51	Westchester-County, New York	New Jersey	Electrician	Head
1920	John H Lambert		Brunswick, Virginia	Virginia	—	Son
1930	John C. Lambert		Somerset, Pennsylvania	Pennsylvania	—	Son

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About John Lambert US Census Records & Model Tree

We've indexed 6900 free, proprietary US Census records for John Lambert 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 6900 US Census records for John Lambert, 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 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 John 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 John Lambert 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.