How many Mary Kenney census records do you have?

We have 3438 US Census records for Mary Kenney, from 1900 to 1950, across 48 states and DC.

What's in a Mary Kenney 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 Kenney'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 Kenney census records free?

Yes. All Mary Kenney 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 Kenney?

We have Mary Kenney records from the 1900 through 1950 US Federal Census, across 48 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Kenney 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 Kenney?

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 Kenney — US Census Records & Model Tree

We found 3438 free census records for Mary Kenney across 6 census years (1900–1950), in 48 states and DC and 585 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Kenney Census Records by State & County

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Showing of 3438 records for Mary Kenney US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Mary E. Kenney		Suffolk, Massachusetts	Massachusetts	Telephone Operator	Daughter
1940	Mary L. Kenney	57	Bristol-County, Massachusetts	New Hampshire	—	Wife
1930	Mary Kenney		Kings, New York	New Jersey	None	Wife
1920	Mary Kenney		Hampden, Massachusetts	Connecticut	—	Wife
1900	Mary A Kenney	57	Essex, Massachusetts	Maine	—	Wife
1930	Mary A. Kenney		Wayne, Michigan	Michigan	—	Head
1940	Mary Kenney	54	Providence-County, Rhode Island	Rhode Island	Housekeeper	Head
1940	Mary Kenney	65	Kings-County, New York	Ireland	—	Head
1920	Mary E Kenney		Providence, Rhode Island	Rhode Island	—	Wife
1930	Mary E. Kenney		Allegany, Maryland	Maryland	—	Wife
1930	Mary E. Kenney		Allegany, Maryland	Maryland	—	Daughter
1930	Mary Kenney		Cook, Illinois	Illinois	—	Daughter
1930	Mary E. Kenney		Suffolk, Massachusetts	Massachusetts	—	Daughter
1900	Mary Kenney	41	Middlesex, Massachusetts	Massachusetts	—	Wife
1930	Mary Kenney		Suffolk, Massachusetts	Massachusetts	Teacher	Daughter
1940	Mary F. Kenney	15	Middlesex-County, Massachusetts	Massachusetts	—	Daughter
1930	Mary Kenney		Schuylkill, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary J. Kenney	46	Middlesex-County, Massachusetts	Irish Free State	Student Worker	Wife
1930	Mary T. Kenney		Worcester, Massachusetts	Massachusetts	—	Daughter
1910	Mary Kenney		Kings, New York	Ireland	—	Wife
1940	Mary Kenney	60	Schuylkill-County, Pennsylvania	Pennsylvania	Housekeeper	Wife
1900	Mary Kenney	16	Kings, New York	New Jersey	At School	Daughter
1930	Mary Kenney		Middlesex, Massachusetts	Irish Free State	—	Wife
1940	Mary Kenney	17	Philadelphia-County, Pennsylvania	Penna	New Worker	Daughter
1920	Mary Kenney		Philadelphia, Pennsylvania	Pennsylvania	None	Daughter
1930	Mary Kenney		Cook, Illinois	Ireland	—	Head
1910	Mary Kenney		Taylor, West Virginia	West Virginia	—	Daughter
1940	Mary Louise Kenney	11	Mahoning-County, Ohio	Ohio	—	Daughter
1940	Mary E. Kenney	44	Hillsborough-County, New Hampshire	New Hampshire	—	Wife
1940	Mary W Kenney	40	Suffolk-County, Massachusetts	Massachusetts	Stenographer	Daughter

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About Mary Kenney US Census Records & Model Tree

We've indexed 3438 free, proprietary US Census records for Mary Kenney across 1900–1950, covering 48 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, 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 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 3438 US Census records for Mary Kenney, from 1900 to 1950, across 48 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 Kenney'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 Kenney 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 Kenney records from the 1900 through 1950 US Federal Census, across 48 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.