How many John Kirby census records do you have?

We have 4392 US Census records for John Kirby, from 1900 to 1950, across 49 states and DC.

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

Yes. All John 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 John Kirby?

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

How do I find John 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 John 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.

John Kirby — US Census Records & Model Tree

We found 4392 free census records for John Kirby across 6 census years (1900–1950), in 49 states and DC and 1021 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Kirby Census Records by State & County

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Showing of 4392 records for John Kirby US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	John C. Kirby		Caldwell, North Carolina	North Carolina	—	Son
1910	John E Kirby		Monroe, Michigan	Michigan	—	Son
1930	John Kirby		Boone, West Virginia	West Virginia	Aviator	Son
1940	John R Kirby	36	Baltimore-City-County, Maryland	Maryland	Electric-Type Molder	Head
1940	John Kirby	67	Caldwell-County, North Carolina	North Carolina	Farm Laborer	Head
1940	John W. Kirby	68	Jackson-County, Missouri	Missouri	Farmer	Head
1910	John Kirby		Providence, Rhode Island	Rhode Island	—	Son
1940	John W. Kirby	13	Charlottesville-City-County, Virginia	Virginia	—	Son
1930	John S. Jr. Kirby		Rutherford, North Carolina	North Carolina	Worker	Son
1940	John Kirby	21	Wythe-County, Virginia	Virginia	Laborer	Son
1910	John L. Kirby		Champaign, Illinois	Illinois	Farming	Head
1940	John A. Kirby	14	Westchester-County, New York	New York	—	Son
1910	John F Kirby		Douglas, Georgia	Georgia	Farmer	Head
1940	John Kirby	45	Westchester-County, New York	New York	Plumber	Head
1910	John W Kirby		Fluvanna, Virginia	Virginia	—	Son
1910	John B Kirby		Douglas, Georgia	Georgia	Farm Laborer	Son
1940	John Kirby	49	Newton-County, Mississippi	Mississippi	Farmer	Head
1940	John Kirby	14	Schuylkill-County, Pennsylvania	Pennsylvania	—	Son
1940	John D Kirby	18	Wilson-County, North Carolina	North Carolina	Farming	Son
1940	John D. Kirby	13	Orleans-County, New York	New York	—	Son
1940	John Henry Kirby	24	Wayne-County, Georgia	Georgia	Laborer	Son
1920	John C. Kirby		Dallas, Texas	Texas	—	Son
1940	John Kirby	46	Cook-County, Illinois	Illinois	Laborer	Head
1940	John Kirby	19	Robertson-County, Tennessee	Tennessee	Helper	Son
1940	John Kirby	19	San-Francisco-County, California	California	New Worker	Son
1910	John Kirby		Cook, Illinois	Illinois	Clerk	Son
1940	John D. Kirby	35	Cook-County, Illinois	Illinois	Truck Driver	Son
1910	John M Kirby		Weakley, Tennessee	Alabama	Lumber Dealer	Head
1910	John Kirby		Bristol, Rhode Island	Rhode Island	—	Son
1940	John E. Kirby	21	Albany-County, New York	New York	Clerk	Son

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About John Kirby US Census Records & Model Tree

We've indexed 4392 free, proprietary US Census records for John Kirby across 1900–1950, covering 49 states and DC: 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, 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 4392 US Census records for John Kirby, from 1900 to 1950, across 49 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 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 John 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 John Kirby records from the 1900 through 1950 US Federal Census, across 49 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.