How many Mary Boyle census records do you have?

We have 7534 US Census records for Mary Boyle, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Boyle 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 Boyle?

We have Mary Boyle 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 Boyle 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 Boyle?

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 Boyle — US Census Records & Model Tree

We found 7534 free census records for Mary Boyle across 6 census years (1900–1950), in 49 states and DC and 745 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Boyle Census Records by State & County

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Showing of 7534 records for Mary Boyle US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary Boyle	61	Bronx-County, New York	Ireland	—	Wife
1940	Mary Boyle	58	Middlesex-County, Massachusetts	England	None	Wife
1930	Mary Boyle		Hudson, New Jersey	Ireland	—	Wife
1920	Mary Boyle		Luzerne, Pennsylvania	Ireland	—	Wife
1940	Mary Boyle	84	Kings-County, New York	Ireland	—	Head
1940	Mary Boyle	39	Queens-County, New York	Ireland	—	Wife
1930	Mary Boyle		Hudson, New Jersey	Scotland	None	Wife
1930	Mary J Boyle		Providence, Rhode Island	England	None	Wife
1940	Mary Boyle	67	Philadelphia-County, Pennsylvania	Ireland	—	Head
1930	Mary H Boyle		Philadelphia, Pennsylvania	Scotland	—	Wife
1940	Mary Boyle	47	Bronx-County, New York	New York	—	Wife
1940	Mary Boyle	49	Delaware-County, Pennsylvania	Delaware	—	Head
1940	Mary E Boyle	81	Perry-County, Ohio	Ohio	—	Head
1910	Mary Boyle		Carver, Minnesota	Minnesota	—	Wife
1910	Mary Boyle		Kings, New York	Ireland	—	Wife
1930	Mary Boyle		Norfolk, Massachusetts	Massachusetts	—	Wife
1930	Mary Boyle		Hudson, New Jersey	Scotland	Clerk	Daughter
1930	Mary Boyle		Kings, New York	New York	—	Daughter
1940	Mary Elizabeth Boyle	20	Luzerne-County, Pennsylvania	Pennsylvania	—	Daughter
1910	Mary A Boyle		Kings, New York	New York	—	Wife
1920	Mary Boyle		Schuylkill, Pennsylvania	Pennsylvania	—	Daughter
1920	Mary E. Boyle		Luzerne, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary Boyle	11	Kings-County, New York	New York	—	Daughter
1910	Mary Boyle		Warren, New Jersey	Ireland	—	Wife
1940	Mary Boyle	10	Middlesex-County, Massachusetts	Massachusetts	—	Daughter
1940	Mary L. Boyle	10	Woodbury-County, Iowa	Iowa	—	Daughter
1910	Mary Boyle		Philadelphia, Pennsylvania	Ireland	—	Wife
1930	Mary Boyle		St Louis, Missouri	Missouri	—	Head
1940	Mary Jane Boyle	14	Oakland-County, Michigan	Michigan	—	Daughter
1940	Mary Boyle	11	Stevens-County, Washington	Washington	—	Daughter

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About Mary Boyle US Census Records & Model Tree

We've indexed 7534 free, proprietary US Census records for Mary Boyle 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 7534 US Census records for Mary Boyle, 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 Boyle'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 Boyle 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 Boyle 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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