How many John Long census records do you have?

We have 19824 US Census records for John Long, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All John Long 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 Long?

We have John Long 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 Long 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 Long?

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 Long — US Census Records & Model Tree

We found 19824 free census records for John Long across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 2218 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Long Census Records by State & County

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Showing of 19824 records for John Long US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Long	32	Hennepin-County, Minnesota	Minnesota	Baker	Head
1940	John Long	33	Franklin-County, Tennessee	Tennessee	Laborer	Head
1940	John Long	33	Hudson-County, New Jersey	New Jersey	Helper	Head
1940	John H. Long	42	Chickasaw-County, Mississippi	Mississippi	Road Wk	Head
1930	John H. Long		Middlesex, Massachusetts	Massachusetts	Chauffeur	Son
1940	John H. Long	27	Anderson-County, Tennessee	Tennessee	Machine Operator	Head
1940	John Long	46	Henry-County, Illinois	Illinois	Farmer	Head
1940	John Long	22	Essex-County, New Jersey	New Jersey	Pocket Books	Son
1920	John M Long		King William, Virginia	Virginia	Farmer	Head
1940	John F. Long	50	Clinton-County, New York	New York	Proprietor	Head
1930	John W Long		Independence, Arkansas	Arkansas	Farmer	Son
1940	John Long	32	Boone-County, Iowa	Iowa	Farmer	Head
1940	John C Long	30	Butler-County, Ohio	Ohio	—	Head
1940	John Long	22	Baltimore-City-County, Maryland	Maryland	Machinist Helper	Head
1940	John Long	22	King-County, Washington	Washington	Machinist	Head
1920	John Long		Franklin, Ohio	Ohio	Key Maker	Head
1940	John H. Long	71	Sussex-County, Delaware	Maryland	Retired	Head
1940	John D. Long	62	Pueblo-County, Colorado	Colorado	—	Head
1940	John Long	40	Marshall-County, West Virginia	West Virginia	Laborer	Head
1920	John Long		Brunswick, North Carolina	South Carolina	Laborer	Head
1920	John H Long		Brooks, Georgia	Florida	Farmer	Head
1930	John C Long		Franklin, Tennessee	Tennessee	Farmer	Head
1940	John M. Long	65	Person-County, North Carolina	North Carolina	Farmer	Head
1940	John M. Long	43	Champaign-County, Illinois	Indiana	24	Head
1940	John J. Long	62	Snyder-County, Pennsylvania	Pennsylvania	Mason	Head
1900	John Long	33	Suffolk, Massachusetts	Ireland	Day Laborer	Head
1940	John Long	69	Putnam-County, West Virginia	West Virginia	Farmer	Head
1940	John H. Long	39	Philadelphia-County, Pennsylvania	Delaware	Marine Work	Head
1930	John L. Long		Lee, Arkansas	Arkansas	Farmer	Head
1920	John Long		Columbus, North Carolina	North Carolina	Farmer	Head

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About John Long US Census Records & Model Tree

We've indexed 19824 free, proprietary US Census records for John Long 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 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 19824 US Census records for John Long, 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 Long'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 Long 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 Long 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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