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John Lang — US Census Records & Model Tree

We found 5538 free census records for John Lang across 6 census years (1900–1950), in 50 states and DC and 967 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Lang Census Records by State & County

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Family Members (in same household)
Showing of 5538 records for John Lang US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 John Lang 40 Bucks-County, Pennsylvania Austria Knitter Head
1940 John Lang 50 Brown-County, Ohio Ohio Farmer Head
1940 John Lang 23 Wayne-County, Michigan Michigan Stock Man Son
1940 John J. Lang 32 Stutsman-County, North Dakota North Dakota Farmer Head
1940 John Lang 43 Cook-County, Illinois Illinois General Inspector Head
1920 John Lang Lucas, Ohio Germany Storekeeper Head
1930 John Lang Cook, Illinois Germany — Head
1940 John G Lang 69 Harrison-County, West Virginia West Virginia Dairy Head
1940 John Lang 54 Bronx-County, New York New Jersey Chauffeur Head
1920 John Lang Baltimore, Maryland Maryland Auditor Head
1940 John J Lang 53 Harrison-County, West Virginia West Virginia Farmer Head
1940 John Jr. Lang 40 Kent-County, Rhode Island Rhode Island Garage Owner Head
1930 John Lang Rockland, New York Germany Baker Head
1930 John M. Lang Champaign, Illinois Indiana Stockeager Head
1940 John Lang 65 Allegheny-County, Pennsylvania Germany — Head
1940 John H Lang 59 Worth-County, Iowa Germany Farmer Head
1940 John Lang 18 Cook-County, Illinois Colorado New Worker Son
1920 John C. Lang Woods, Oklahoma Missouri Farmer Head
1940 John Lang 45 Cook-County, Illinois Illinois Foreman Head
1900 John H Lang 15 Orleans, Louisiana Louisiana Laborer Day Son
1930 John D Lang Poinsett, Arkansas Arkansas — Son
1940 John W. Lang 15 Harrison-County, Kentucky Kentucky Farm Hand Son
1920 John E. Lang Pershing, Nevada Nevada — Son
1940 John Lang 17 Nicollet-County, Minnesota Minnesota — Son
1930 John Lang Trumbull, Ohio Ohio — Son
1940 John Lang 11 Holmes-County, Ohio Ohio — Son
1910 John Lang Kings, New York New York Saleslady Son
1930 John H. Lang Gaston, North Carolina South Carolina Salesman Head
1910 John H. Lang Kings, New York New York Driver Son
1940 John Lang 54 Marathon-County, Wisconsin Wisconsin Contractor Head

About John Lang US Census Records & Model Tree

We've indexed 5538 free, proprietary US Census records for John Lang across 1900–1950, covering 50 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, 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 5538 US Census records for John Lang, from 1900 to 1950, across 50 states and DC.
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 Lang'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 Lang 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 Lang records from the 1900 through 1950 US Federal Census, across 50 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.
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