How many James Kirby census records do you have?

We have 3734 US Census records for James Kirby, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All James Kirby 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 Kirby?

We have James Kirby 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 James Kirby 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 Kirby?

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 Kirby — US Census Records & Model Tree

We found 3734 free census records for James Kirby across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 987 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

James Kirby Census Records by State & County

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Showing of 3734 records for James Kirby US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	James Kirby	32	San-Francisco-County, California	California	Clerk	Head
1920	James W. Kirby		Henrico, Virginia	Virginia	Stock Clerk	Son
1940	James C Kirby	27	Knox-County, Tennessee	Tennessee	Laborer	Head
1940	James J. Kirby	29	Bingham-County, Idaho	Scotland	Butter Maker	Son
1930	James H. Kirby		Gaston, North Carolina	North Carolina	—	Son
1910	James Kirby		Champaign, Illinois	Iowa	Teamster	Head
1940	James Kirby	55	Ramsey-County, Minnesota	Iowa	Steward	Head
1920	James Kirby		Saginaw, Michigan	Ireland	—	Head
1910	James S Kirby		Johnston, North Carolina	North Carolina	Farm Laborer	Son
1940	James Kirby	12	Caldwell-County, North Carolina	North Carolina	—	Son
1940	James Kirby	13	Edgar-County, Illinois	Indiana	—	Son
1910	James M Kirby		Lincoln, Washington	N. Carolina	Farmer	Head
1940	James P Jr. Kirby	24	Cuyahoga-County, Ohio	New York	Advertising-Merchandising	Son
1930	James E. Kirby		Bristol, Massachusetts	Massachusetts	—	Son
1940	James Arthur Kirby	11	Wilson-County, North Carolina	North Carolina	—	Son
1940	James Kirby	16	Newton-County, Mississippi	Mississippi	Farm Labor	Son
1910	James Kirby		Newport, Rhode Island	Virginia	Merchant	Head
1940	James A. Kirby	17	Putnam-County, Tennessee	Tennessee	Farmer	Son
1940	James R. Kirby	13	Madison-County, Tennessee	Tennessee	—	Son
1910	James H. Kirby		Caldwell, North Carolina	North Carolina	Farmer	Head
1940	James T Kirby	22	Chattooga-County, Georgia	Georgia	Farming	Head
1940	James Kirby	14	Lake-County, Illinois	West Virginia	—	Son
1940	James R. Kirby	65	Mcnairy-County, Tennessee	Tennessee	Farmer	Head
1940	James G Kirby	21	Sumner-County, Tennessee	Tennessee	Laborer	Son
1940	James Kirby	11	Washington-County, Maryland	Maryland	—	Son
1910	James Kirby		Newport, Rhode Island	Virginia	—	Son
1940	James Kirby	11	Vigo-County, Indiana	Indiana	—	Son
1930	James Kirby		Randolph, Alabama	Alabama	—	Son
1940	James Kirby	15	Allegheny-County, Pennsylvania	Pennsylvania	—	Son
1930	James Kirby		Rockcastle, Kentucky	Kentucky	Labour	Son

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About James Kirby US Census Records & Model Tree

We've indexed 3734 free, proprietary US Census records for James Kirby across 1900–1950, covering 50 states, DC, and 1 territory: 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, 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 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 3734 US Census records for James Kirby, from 1900 to 1950, across 50 states, DC, and 1 territory.
: 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 Kirby'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 Kirby 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 Kirby 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.