How many John Geary census records do you have?

We have 2802 US Census records for John Geary, from 1900 to 1950, across 49 states and DC.

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

Yes. All John Geary 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 Geary?

We have John Geary 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 Geary 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 Geary?

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 Geary — US Census Records & Model Tree

We found 2802 free census records for John Geary across 6 census years (1900–1950), in 49 states and DC and 522 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

John Geary Census Records by State & County

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Showing of 2802 records for John Geary US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	John Geary	46	Middlesex-County, Massachusetts	Maine	Shipper	Head
1930	John F. Geary		Silver Bow, Montana	England	Detective	Head
1910	John Geary		Middlesex, New Jersey	New Jersey	Farmer	Head
1920	John Peter Geary		Powell, Montana	Montana	Laborer	Son
1930	John H. Geary		Deer Lodge, Montana	Montana	Helper	Son
1910	John H Geary		Vernon, Wisconsin	Ohio	Farmer	Head
1940	John Geary	14	Providence-County, Rhode Island	Rhode Island	—	Son
1940	John Geary	33	Jefferson-County, Alabama	Alabama	Loco. Engr.	Head
1940	John W. Geary	22	Grundy-County, Tennessee	Tennessee	Truck Driver	Son
1940	John Jr. Geary	14	Suffolk-County, Massachusetts	Massachusetts	—	Son
1940	John Geary	9	Cook-County, Illinois	Illinois	—	Son
1940	John Geary	24	Cumberland-County, Maine	Maine	Chaser	Son
1900	John J Geary	8	Cook, Illinois	Illinois	At School	Son
1940	John T. Geary	11	Essex-County, Massachusetts	Massachusetts	—	Son
1940	John Geary	21	Suffolk-County, Massachusetts	Massachusetts	New Worker	Son
1920	John J. Geary		Merrimack, New Hampshire	Ireland	Moulder	Head
1930	John Geary		Erie, New York	New York	—	Son
1910	John W Geary		Montgomery, Pennsylvania	Ireland	—	Head
1930	John Geary		Cook, Illinois	Illinois	—	Son
1910	John Geary		New Castle, Delaware	Ireland	Laborer	Head
1940	John Geary	35	Middlesex-County, Massachusetts	Massachusetts	Yardmaster	Son
1940	John Geary	36	Hudson-County, New Jersey	New Jersey	Laborer	Head
1910	John Geary		Bergen, New Jersey	Holland	Farmer	Head
1940	John Geary	10	Hampden-County, Massachusetts	Massachusetts	—	Son
1940	John Geary	17	Wayne-County, Michigan	Michigan	—	Son
1940	John C Geary	24	Suffolk-County, Massachusetts	Massachusetts	Electrician	Son
1910	John R Geary		Fayette, Pennsylvania	Pennsylvania	Fireman	Head
1940	John Geary	26	Fayette-County, Pennsylvania	Pennsylvania	Laborer	Head
1940	John F. Geary	60	Kings-County, New York	New Jersey	Mailer	Head
1940	John E. Geary	21	Kings-County, New York	New York	Clerk	Son

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About John Geary US Census Records & Model Tree

We've indexed 2802 free, proprietary US Census records for John Geary across 1900–1950, covering 49 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, 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 2802 US Census records for John Geary, 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 Geary'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 Geary 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 Geary 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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