How many Mary Grady census records do you have?

We have 4731 US Census records for Mary Grady, from 1900 to 1950, across 47 states and DC.

What's in a Mary Grady census record?

You'll see Mary'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 Mary Grady'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 Mary Grady census records free?

Yes. All Mary Grady 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 Mary Grady?

We have Mary Grady records from the 1900 through 1950 US Federal Census, across 47 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Grady 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 Mary Grady?

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.

Mary Grady — US Census Records & Model Tree

We found 4731 free census records for Mary Grady across 6 census years (1900–1950), in 47 states and DC and 787 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Grady Census Records by State & County

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Showing of 4731 records for Mary Grady US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	Mary Grady		New York, New York	Ireland	—	Wife
1920	Mary Grady		Linn, Iowa	Ireland	—	Head
1940	Mary Grady	58	Neosho-County, Kansas	Kansas	—	Wife
1920	Mary Grady		Suffolk, Massachusetts	Ireland	None	Wife
1940	Mary (Tillery) Grady	20	Beaufort-County, North Carolina	North Carolina	Laborer	Daughter
1930	Mary Grady		Schuylkill, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary Lu Grady	18	Kemper-County, Mississippi	Mississippi	House Work	Daughter
1900	Mary Grady	40	Lenoir, North Carolina	North Carolina	—	Wife
1940	Mary E Grady	15	Johnston-County, North Carolina	North Carolina	—	Daughter
1930	Mary A. Grady		Wake, North Carolina	North Carolina	Book Keeper	Daughter
1940	Mary Alice Grady	15	Kent-County, Michigan	Michigan	—	Daughter
1940	Mary Lou Grady	17	Chemung-County, New York	New York	—	Daughter
1940	Mary Grady	45	Worcester-County, Massachusetts	Irish Free State	—	Wife
1910	Mary Grady		Albany, New York	Ireland	Housewife	Wife
1930	Mary G Grady		Cook, Illinois	Illinois	—	Daughter
1940	Mary T Grady	11	Suffolk-County, Massachusetts	Massachusetts	—	Daughter
1940	Mary H Grady	23	New-York-County, New York	New York	Stenographer	Daughter
1940	Mary Grady	12	Middlesex-County, Massachusetts	Massachusetts	—	Daughter
1930	Mary L Grady		Cumberland, North Carolina	North Carolina	—	Wife
1940	Mary Grady	14	Westchester-County, New York	Massachusetts	—	Daughter
1930	Mary Grady		Middlesex, Massachusetts	Ireland	None	Wife
1920	Mary W. Grady		Duplin, North Carolina	North Carolina	—	Daughter
1940	Mary Grady	37	Kings-County, New York	New York	0	Wife
1940	Mary Grady	12	Dodge-County, Wisconsin	Wisconsin	—	Daughter
1910	Mary Grady		Providence, Rhode Island	Ireland	—	Wife
1930	Mary Grady		New York, New York	New York	—	Daughter
1940	Mary Lee Grady	15	Wake-County, North Carolina	North Carolina	—	Daughter
1930	Mary Grady		Luzerne, Pennsylvania	Pennsylvania	—	Daughter
1920	Mary Grady		Hudson, New Jersey	Ireland	—	Head
1930	Mary F. Grady		Middlesex, Massachusetts	Massachusetts	—	Daughter

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About Mary Grady US Census Records & Model Tree

We've indexed 4731 free, proprietary US Census records for Mary Grady across 1900–1950, covering 47 states and DC: Alabama, 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.

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 Mary 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 4731 US Census records for Mary Grady, from 1900 to 1950, across 47 states and DC.
: You'll see Mary'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 Mary Grady'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 Mary Grady 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 Mary Grady records from the 1900 through 1950 US Federal Census, across 47 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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