How many John Black census records do you have?

We have 12708 US Census records for John Black, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All John Black 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 Black?

We have John Black 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 John Black 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 Black?

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 Black — US Census Records & Model Tree

We found 12708 free census records for John Black across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1957 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 12708 records for John Black US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1900	John A. Black	9	Reynolds, Missouri	Missouri	—	Son
1940	John Black	40	Mercer-County, New Jersey	Scotland	Janitor	Head
1940	John W. Jr. Black	28	Armstrong-County, Pennsylvania	Pennsylvania	Machinist Helper	Son
1930	John M. Black		Franklin, Ohio	Ohio	Labour	Son
1940	John Black	38	Hennepin-County, Minnesota	Scotland	Salesman	Head
1930	John Black		New York, New York	New York	None	Son
1930	John Black		Philadelphia, Pennsylvania	Pennsylvania	Police	Son
1940	John W. Black	25	Sagadahoc-County, Maine	Maine	Laborer	Son
1930	John M. Black		Cook, Illinois	Wisconsin	Agent	Son
1930	John Black		Cabell, West Virginia	West Virginia	Farmer	Head
1930	John H Black		Franklin, Massachusetts	New York	Farmer	Head
1920	John Black		Sangamon, Illinois	Illinois	Laborer	Head
1920	John Black		New York, New York	Scotland	None	Head
1930	John Black		Hudson, New Jersey	New Jersey	Captain	Head
1920	John W. Black		Shelby, Tennessee	Tennessee	Farmer	Head
1940	John W. Black	44	Tulsa-County, Oklahoma	Arkansas	Cobbler	Head
1920	John B Black		Lincoln, Oklahoma	Ohio	Farmer	Head
1920	John Black		Leavenworth, Kansas	Illinois	Farmer	Head
1940	John M. Black	64	Bayfield-County, Wisconsin	Indiana	Farmer	Head
1940	John Black	85	Richland-County, Illinois	Indiana	—	Head
1940	John Black	44	Queens-County, New York	Hungary	Factory Worker	Head
1940	John H. Black	78	Queens-County, New York	New York	Editor	Head
1940	John Q. Black	58	Harris-County, Texas	Minnesota	Brick Layer	Head
1940	John M. Black	77	Bell-County, Texas	Kentucky	—	Head
1940	John Black	74	Polk-County, Iowa	Ohio	—	Head
1940	John S. Black	48	Dauphin-County, Pennsylvania	Pennsylvania	Salesman	Head
1920	John Black		Burlington, New Jersey	New Jersey	—	Head
1920	John Black		Caddo, Louisiana	Louisiana	Farmer	Head
1920	John Black		Westmoreland, Pennsylvania	Pennsylvania	—	Son
1930	John F Black		Day, South Dakota	South Dakota	Farmer	Head

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About John Black US Census Records & Model Tree

We've indexed 12708 free, proprietary US Census records for John Black across 1900–1950, covering 50 states, DC, and 1 territory: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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 12708 US Census records for John Black, from 1900 to 1950, across 50 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 Black'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 Black 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 Black 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.

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