How many John Roach census records do you have?

We have 6270 US Census records for John Roach, from 1900 to 1950, across 50 states and DC.

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

Yes. All John Roach 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 Roach?

We have John Roach records from the 1900 through 1950 US Federal Census, across 50 states and DC. Use the year and state filters to narrow your results.

How do I find John Roach 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 Roach?

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 Roach — US Census Records & Model Tree

We found 6270 free census records for John Roach across 6 census years (1900–1950), in 50 states and DC and 1232 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Roach Census Records by State & County

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Showing of 6270 records for John Roach US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	John Roach		Bergen, New Jersey	New Jersey	Messenger	Son
1920	John O. Roach		Luzerne, Pennsylvania	Austria	Lawyer	Head
1920	John M Roach		Madison, Indiana	Indiana	Farm	Head
1930	John Roach		Lincoln, West Virginia	West Virginia	Farmer	Head
1910	John Roach		None, New York	Germany	Butcher	Head
1910	John Roach		Holmes, Mississippi	Mississippi	Farm Laborer	Son
1910	John Roach		Cook, Illinois	Germany	Teamster	Head
1910	John Roach		Worcester, Massachusetts	Massachusetts	—	Son
1940	John Roach	42	Winnebago-County, Illinois	Indiana	Painter	Head
1940	John J. Roach	48	Suffolk-County, Massachusetts	Massachusetts	Tree Surgeon	Head
1920	John Roach		Hampshire, West Virginia	West Virginia	—	Son
1910	John Roach		Davidson, Tennessee	Tennessee	Laborer	Son
1940	John S Roach	35	Baltimore-City-County, Maryland	Maryland	Cook	Head
1930	John Roach		Hampden, Massachusetts	Massachusetts	—	Son
1940	John W Roach	17	Bibb-County, Alabama	Alabama	Laborer	Son
1940	John Roach	14	Baltimore-City-County, Maryland	Maryland	—	Son
1910	John S. Roach		Montgomery, Iowa	Iowa	Farmer	Son
1910	John Roach		Jefferson, Tennessee	Tennessee	Farm Laborer	Head
1930	John Roach		Adams, Washington	Colorado	Boiler Maker Helper	Head
1940	John Roach	14	Suffolk-County, Massachusetts	Massachusetts	—	Son
1940	John T. Roach	20	Sussex-County, Virginia	Virginia	Laborer	Son
1910	John Roach		New York, New York	Ireland	Mechanic	Head
1940	John Roach	11	Ramsey-County, Minnesota	Minnesota	—	Son
1910	John E Roach		Merrimack, New Hampshire	New Hampshire	—	Son
1910	John Roach		Conecuh, Alabama	Alabama	—	Daughter
1930	John Roach		Posey, Indiana	Indiana	—	Son
1900	John Roach	31	Essex, Massachusetts	Ireland	Morocco Dresser	Head
1930	John R. Roach		Brooks, Georgia	Georgia	Farmer	Head
1910	John H Roach		Alexander, Illinois	Illinois	Student	Son
1920	John Roach		Cook, Illinois	Illinois	Mechanic	Son

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About John Roach US Census Records & Model Tree

We've indexed 6270 free, proprietary US Census records for John Roach across 1900–1950, covering 50 states and DC: 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, 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 6270 US Census records for John Roach, from 1900 to 1950, across 50 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 Roach'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 Roach 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 Roach records from the 1900 through 1950 US Federal Census, across 50 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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