How many Mary Mckenna census records do you have?

We have 6290 US Census records for Mary Mckenna, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Mckenna 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 Mckenna?

We have Mary Mckenna 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 Mary Mckenna 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 Mckenna?

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 Mckenna — US Census Records & Model Tree

We found 6290 free census records for Mary Mckenna across 6 census years (1900–1950), in 49 states and DC and 511 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Mckenna Census Records by State & County

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Showing of 6290 records for Mary Mckenna US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary Mckenna		Providence, Rhode Island	Rhode Island	Spooler	Daughter
1920	Mary E. Mckenna		Providence, Rhode Island	Rhode Island	Teacher	Daughter
1930	Mary R. Mckenna		Providence, Rhode Island	Rhode Island	Carder	Daughter
1930	Mary Mckenna		Kent, Rhode Island	Rhode Island	Dresser	Head
1920	Mary Mckenna		Wayne, Michigan	England	—	Wife
1940	Mary Mckenna	69	Providence-County, Rhode Island	Rhode Island	—	Head
1940	Mary T. Mckenna	13	Middlesex-County, Massachusetts	Massachusetts	—	Daughter
1940	Mary J. Mckenna	15	Ionia-County, Michigan	Michigan	—	Daughter
1930	Mary M. Mckenna		Spokane, Washington	Washington	—	Daughter
1920	Mary E. Mckenna		Middlesex, Massachusetts	Massachusetts	—	Daughter
1900	Mary Mckenna	11	San Francisco, California	California	At School	Daughter
1940	Mary Mckenna	22	Essex-County, New Jersey	New Jersey	—	Daughter
1940	Mary Mckenna	55	New-York-County, New York	Ireland	Office Cleaner	Head
1940	Mary Mckenna	48	Hudson-County, New Jersey	Ireland	—	Wife
1910	Mary Mckenna		Providence, Rhode Island	Rhode Island	Looper	Daughter
1940	Mary C. Mckenna	42	Erie-County, New York	New York	—	Wife
1940	Mary Mckenna	43	Wayne-County, Michigan	Ohio	Stationery Clerk	Wife
1930	Mary Mckenna		New York, New York	Irish Free State	—	Wife
1940	Mary Mckenna	60	San-Francisco-County, California	Ireland	—	Wife
1940	Mary M. Mckenna	11	Wayne-County, Michigan	Michigan	—	Daughter
1910	Mary G. Mckenna		Providence, Rhode Island	Rhode Island	Milliner	Daughter
1930	Mary Mckenna		Hampden, Massachusetts	Irish Free State	None	Wife
1940	Mary C Mckenna	42	Providence-County, Rhode Island	India	—	Wife
1910	Mary Mckenna		Providence, Rhode Island	Rhode Island	Milliner	Daughter
1940	Mary Mckenna	59	Queens-County, New York	Ireland	—	Wife
1930	Mary Mckenna		New York, New York	Ireland	None	Daughter
1930	Mary E. Mckenna		Woodbury, Iowa	Iowa	None	Daughter
1920	Mary H Mckenna		Essex, New Jersey	New Jersey	—	Daughter
1940	Mary Mckenna	13	Cook-County, Illinois	West Virginia	—	Daughter
1930	Mary Mckenna		Kings, New York	Ireland	—	Wife

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About Mary Mckenna US Census Records & Model Tree

We've indexed 6290 free, proprietary US Census records for Mary Mckenna 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 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 6290 US Census records for Mary Mckenna, from 1900 to 1950, across 49 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 Mckenna'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 Mckenna 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 Mckenna 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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