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James Buchanan — US Census Records & Model Tree

We found 4659 free census records for James Buchanan across 6 census years (1900–1950), in 50 states and DC and 1091 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

James Buchanan Census Records by State & County

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Family Members (in same household)
Showing of 4659 records for James Buchanan US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1940 James Buchanan 40 Chickasaw-County, Mississippi Mississippi Night Watchman Head
1910 James Buchanan Washington, Pennsylvania Pennsylvania — Son
1930 James Buchanan Irwin, Georgia Georgia None Son
1940 James Buchanan 37 Wilson-County, Kansas Kansas Farm Laborer Son
1940 James H. Buchanan 28 Essex-County, Massachusetts Scotland Metal Finisher Head
1940 James Buchanan 78 Huerfano-County, Colorado Scotland — Head
1940 James Buchanan 49 Bay-County, Florida Florida Forest Ranger Head
1940 James Buchanan 55 Providence-County, Rhode Island Scotland Dye Asst. Head
1940 James C. Buchanan 78 King-County, Washington Scotland Manager Head
1940 James L Buchanan 57 Yuma-County, Colorado Pennsylvania Dentist Head
1900 James Buchanan 27 Mitchell, North Carolina North Carolina Farmer Head
1920 James H Buchanan Humphreys, Tennessee Tennessee None Son
1930 James Buchanan Monroe, Mississippi Mississippi Farmer Head
1940 James R. Buchanan 19 Harris-County, Texas Texas Truck Driver Son
1940 James Buchanan 63 Lee-County, North Carolina North Carolina Farmer Head
1910 James Lee Buchanan Chickasaw, Mississippi Mississippi — Son
1940 James L Buchanan 17 Chickasaw-County, Mississippi Mississippi Laborer Son
1940 James E. Buchanan 14 Vanderburgh-County, Indiana Indiana — Son
1940 James L. Buchanan 16 Russell-County, Virginia Virginia Farmer Son
1940 James Buchanan 25 Leflore-County, Mississippi Mississippi Farmer Son
1940 James R. Buchanan 20 Jackson-County, North Carolina North Carolina Road Laborer Son
1910 James S. Buchanan Tazewell, Virginia Virginia Laborer Head
1910 James Buchanan Lauderdale, Mississippi Georgia Baker Head
1940 James Buchanan 15 Walker-County, Georgia Georgia — Son
1930 James Buchanan Swain, North Carolina North Carolina Farmer Head
1920 James A Buchanan Shenandoah, Virginia Virginia Farmer Head
1940 James A. Buchanan 38 Ware-County, Georgia Georgia Farmer Head
1910 James Lee Buchanan Chickasaw, Mississippi Mississippi — Son
1940 James Howard Buchanan 40 Allegheny-County, Pennsylvania Pennsylvania Electrician Head
1940 James H. Buchanan 17 Forrest-County, Mississippi Mississippi — Son

About James Buchanan US Census Records & Model Tree

We've indexed 4659 free, proprietary US Census records for James Buchanan 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 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 4659 US Census records for James Buchanan, from 1900 to 1950, across 50 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 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 James 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 James Buchanan 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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