How many Mary Kenny census records do you have?

We have 3282 US Census records for Mary Kenny, from 1900 to 1950, across 47 states and DC.

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

Yes. All Mary Kenny 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 Kenny?

We have Mary Kenny 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 Kenny 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 Kenny?

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 Kenny — US Census Records & Model Tree

We found 3282 free census records for Mary Kenny across 6 census years (1900–1950), in 47 states and DC and 466 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Kenny Census Records by State & County

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Showing of 3282 records for Mary Kenny US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Mary F. Kenny		Bristol, Massachusetts	New Hampshire	—	Wife
1920	Mary Kenny		New York, New York	Ireland	—	Head
1940	Mary Kenny	70	Essex-County, New Jersey	New Jersey	—	Wife
1920	Mary Kenny		Hudson, New Jersey	Ireland	Furnished Rooms	Head
1940	Mary Kenny	51	New-York-County, New York	Ireland	—	Head
1930	Mary Kenny		Providence, Rhode Island	Rhode Island	Housekeeper	Head
1940	Mary Kenny	52	Hudson-County, New Jersey	New Jersey	—	Wife
1910	Mary F. Kenny		Bristol, Massachusetts	Rhode Island	None	Wife
1910	Mary E Kenny		Middlesex, Massachusetts	Massachusetts	Shoemaker	Daughter
1930	Mary E. Kenny		Hudson, New Jersey	New Jersey	—	Wife
1940	Mary Jane Kenny	16	Baltimore-City-County, Maryland	Maryland	—	Daughter
1910	Mary Kenny		Philadelphia, Pennsylvania	Pennsylvania	None	Daughter
1940	Mary Kenny	48	Essex-County, New Jersey	Canada	—	Wife
1940	Mary M. Kenny	17	Weber-County, Utah	Utah	—	Daughter
1930	Mary Kenny		Cook, Illinois	Illinois	—	Daughter
1910	Mary J. Kenny		Kings, New York	Ireland	—	Wife
1940	Mary Kenny	34	Bronx-County, New York	Irish Free State	—	Wife
1940	Mary Kenny	50	Kings-County, New York	England	—	Wife
1900	Mary Kenny	7	Taylor, West Virginia	West Virginia	—	Daughter
1940	Mary Kenny	22	Suffolk-County, Massachusetts	Massachusetts	—	Daughter
1930	Mary C. Kenny		Wayne, Michigan	Michigan	Telegrapher	Daughter
1930	Mary E. Kenny		Mobile, Alabama	Alabama	—	Daughter
1920	Mary Kenny		Philadelphia, Pennsylvania	Pennsylvania	—	Daughter
1910	Mary Kenny		Houston, Minnesota	Minnesota	—	Wife
1930	Mary Kenny		Wayne, Michigan	Canada-English	—	Wife
1910	Mary A Kenny		Middlesex, Massachusetts	Massachusetts	—	Wife
1940	Mary Kenny	18	Suffolk-County, Massachusetts	Massachusetts	—	Daughter
1940	Mary Kenny	13	Hudson-County, New Jersey	New Jersey	—	Daughter
1930	Mary Kenny		Suffolk, Massachusetts	England	—	Wife
1940	Mary G. Kenny	66	Bristol-County, Massachusetts	Rhode Island	—	Wife

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About Mary Kenny US Census Records & Model Tree

We've indexed 3282 free, proprietary US Census records for Mary Kenny 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, 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 3282 US Census records for Mary Kenny, 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 Kenny'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 Kenny 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 Kenny 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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