How many John Caldwell census records do you have?

We have 7126 US Census records for John Caldwell, from 1900 to 1950, across 49 states and DC.

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

Yes. All John Caldwell 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 Caldwell?

We have John Caldwell 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 Caldwell 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 Caldwell?

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 Caldwell — US Census Records & Model Tree

We found 7126 free census records for John Caldwell across 6 census years (1900–1950), in 49 states and DC and 1424 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Caldwell Census Records by State & County

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Showing of 7126 records for John Caldwell US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John Jr. Caldwell		York, South Carolina	South Carolina	—	Son
1940	John Robert Caldwell	23	Newberry-County, South Carolina	South Carolina	Laborer	Son
1940	John P Caldwell	22	Jefferson-County, Pennsylvania	Pennsylvania	Janitor	Son
1920	John Caldwell		Haywood, North Carolina	North Carolina	—	Son
1940	John F. Caldwell	40	Calhoun-County, South Carolina	South Carolina	Farmer	Head
1940	John Caldwell	33	Washington-County, Pennsylvania	Scotland	Meter Reader	Son
1930	John F Caldwell		Schuyler, Illinois	Illinois	Farmer	Head
1940	John Caldwell	22	Kings-County, New York	New York	Clerk	Son
1920	John Caldwell		Erie, New York	Scotland	Chauffeur	Son
1940	John M. C. Caldwell	28	Washington-County, Virginia	Virginia	Farmer	Son
1930	John A Caldwell		Talladega, Alabama	Alabama	Laborer	Son
1930	John H. Caldwell		Greenbrier, West Virginia	West Virginia	Farmer	Head
1930	John T. Caldwell		Carroll, Georgia	Georgia	Farmer	Head
1940	John F. Caldwell	68	Telfair-County, Georgia	Georgia	—	Head
1940	John Caldwell	51	Cuyahoga-County, Ohio	Scotland	Carpenter	Head
1940	John Jr. Caldwell	44	Washington-County, Pennsylvania	Scotland	Asst. Foreman	Head
1920	John Caldwell		Boyle, Kentucky	Kentucky	Laborer	Head
1920	John M Caldwell		Allegheny, Pennsylvania	Pennsylvania	Farmer	Head
1940	John Caldwell	77	Lake-County, Florida	Georgia	—	Head
1930	John Caldwell		Leavenworth, Kansas	Kansas	Blacksmith	Head
1940	John P. (X) Caldwell	63	Lee-County, Mississippi	Mississippi	Foreman	Head
1940	John A. Caldwell	70	Hardeman-County, Texas	Tennessee	—	Head
1930	John Caldwell		Montgomery, Indiana	Indiana	Minister	Head
1940	John Caldwell	24	Haywood-County, North Carolina	North Carolina	Helper	Son
1940	John Henry Caldwell	15	Newberry-County, South Carolina	South Carolina	—	Son
1940	John D Caldwell	10	Panola-County, Mississippi	Mississippi	—	Son
1910	John C. Caldwell		Westmoreland, Pennsylvania	Pennsylvania	Farmer	Head
1920	John Caldwell		Fairfield, South Carolina	South Carolina	Farm Laborer	Son
1910	John Caldwell		Iredell, North Carolina	North Carolina	None	Son
1910	John B. Caldwell		Halifax, Virginia	Virginia	Laborer	Son

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About John Caldwell US Census Records & Model Tree

We've indexed 7126 free, proprietary US Census records for John Caldwell 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 7126 US Census records for John Caldwell, 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 Caldwell'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 Caldwell 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 Caldwell 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.

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