How many John Buchanan census records do you have?

We have 4637 US Census records for John Buchanan, from 1900 to 1950, across 49 states, DC, and 1 territory.

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

Yes. All John Buchanan 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 Buchanan?

We have John Buchanan records from the 1900 through 1950 US Federal Census, across 49 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find John Buchanan 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 Buchanan?

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 Buchanan — US Census Records & Model Tree

We found 4637 free census records for John Buchanan across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 1125 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Buchanan Census Records by State & County

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Showing of 4637 records for John Buchanan US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John B. Buchanan	36	Obion-County, Tennessee	Tennessee	Farm Laborer	Head
1920	John H. Buchanan		Gibson, Tennessee	Tennessee	Farmer	Son
1940	John Buchanan	23	Tama-County, Iowa	Iowa	Laborer	Son
1940	John H Buchanan	24	Chickasaw-County, Mississippi	Mississippi	Laborer	Son
1940	John Buchanan	45	Obion-County, Tennessee	Tennessee	Farmer	Head
1940	John L. Buchanan	43	Vanderburgh-County, Indiana	Kentucky	Engineer	Head
1930	John A. Buchanan		Haakon, South Dakota	Virginia	Farmer	Head
1930	John D. Buchanan		Washington, Pennsylvania	West Virginia	Merchant	Head
1920	John D. Buchanan		Dinwiddie, Virginia	Scotland	Merchant	Head
1930	John W Buchanan		Pope, Illinois	Illinois	Farmer	Head
1940	John S. Buchanan	78	Shawnee-County, Kansas	Scotland	—	Head
1940	John Wesley Buchanan	15	Carroll-County, Georgia	Georgia	—	Son
1930	John W Jr. Buchanan		Chester, Pennsylvania	Pennsylvania	Laborer	Son
1920	John F. Buchanan		Collin, Texas	Georgia	Farmer	Head
1930	John Buchanan		Philadelphia, Pennsylvania	Pennsylvania	—	Son
1910	John E Buchanan		Smyth, Virginia	Virginia	Farm Operator	Head
1930	John H. Buchanan		Harris, Georgia	Georgia	Laborer	Son
1910	John Buchanan		Collin, Texas	Texas	—	Son
1920	John Buchanan		Humphreys, Tennessee	Tennessee	—	Son
1940	John W. Jr. Buchanan	23	Jackson-County, North Carolina	North Carolina	Farm Work	Son
1920	John N. Buchanan		Baker, Oregon	Oregon	—	Son
1940	John Buchanan	25	Suffolk-County, Massachusetts	Scotland	General Worker	Son
1940	John J Buchanan	18	Halifax-County, Virginia	Virginia	—	Son
1940	John Buchanan	10	Mower-County, Minnesota	Minnesota	—	Son
1940	John W. Buchanan	55	Jackson-County, North Carolina	North Carolina	Farmer	Head
1940	John Buchanan	21	Lawrence-County, Ohio	West Virginia	Painter	Son
1940	John Buchanan	56	Mower-County, Minnesota	Minnesota	Laborer	Head
1940	John E. Buchanan	48	Suffolk-County, Massachusetts	Scotland	Baker	Head
1910	John Buchanan		Williamson, Tennessee	Tennessee	—	Son
1930	John E Buchanan		Summit, Ohio	Ohio	—	Son

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About John Buchanan US Census Records & Model Tree

We've indexed 4637 free, proprietary US Census records for John Buchanan across 1900–1950, covering 49 states, DC, and 1 territory: Alabama, 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, Puerto Rico, 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 4637 US Census records for John Buchanan, from 1900 to 1950, across 49 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 Buchanan'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 Buchanan 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 Buchanan records from the 1900 through 1950 US Federal Census, across 49 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.

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