How many Mary Conroy census records do you have?

We have 3672 US Census records for Mary Conroy, from 1900 to 1950, across 46 states and DC.

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

Yes. All Mary Conroy 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 Conroy?

We have Mary Conroy records from the 1900 through 1950 US Federal Census, across 46 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Conroy 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 Conroy?

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 Conroy — US Census Records & Model Tree

We found 3672 free census records for Mary Conroy across 6 census years (1900–1950), in 46 states and DC and 357 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Conroy Census Records by State & County

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Showing of 3672 records for Mary Conroy US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary A Conroy		Berkshire, Massachusetts	New York	None	Daughter
1940	Mary Conroy	43	Kings-County, New York	New York	Stenographer	Daughter
1930	Mary Conroy		Kings, New York	Ireland	—	Wife
1940	Mary Conroy	43	Ramsey-County, Minnesota	Iowa	—	Wife
1940	Mary Conroy	50	Kings-County, New York	Ireland	—	Wife
1920	Mary Conroy		Worcester, Massachusetts	Ireland	—	Head
1920	Mary Conroy		Middlesex, Massachusetts	Ireland	—	Wife
1930	Mary Conroy		New York, New York	Ireland	Clerk	Wife
1920	Mary Conroy		Allegheny, Pennsylvania	Ireland	—	Head
1940	Mary Conroy	47	Hudson-County, New Jersey	New York	—	Wife
1930	Mary Conroy		Bronx, New York	New York	Operator	Daughter
1910	Mary Conroy		Essex, New Jersey	Ireland	—	Wife
1940	Mary Conroy	48	Allegheny-County, Pennsylvania	Irish Free State	—	Head
1900	Mary Conroy	45	Allegheny, Pennsylvania	Ireland	—	Wife
1940	Mary Conroy	18	Cumberland-County, Maine	Maine	Secretary	Daughter
1940	Mary Conroy	60	Somerset-County, New Jersey	New Jersey	—	Head
1930	Mary Conroy		Queens, New York	New Jersey	None	Daughter
1940	Mary J. Conroy	14	Delaware-County, Pennsylvania	Penna	—	Daughter
1940	Mary Conroy	22	Somerset-County, New Jersey	New Jersey	Machine Operator	Daughter
1940	Mary Conroy	10	Ramsey-County, Minnesota	Minnesota	—	Daughter
1940	Mary Conroy	14	Ramsey-County, Minnesota	Minnesota	—	Daughter
1940	Mary M. Conroy	12	Cumberland-County, Maine	Maine	—	Daughter
1910	Mary Conroy		Allegheny, Pennsylvania	Ireland	—	Wife
1930	Mary J Conroy		Middlesex, Massachusetts	Massachusetts	—	Daughter
1940	Mary Conroy	43	Ramsey-County, Minnesota	Irish Free State	—	Wife
1940	Mary Conroy	46	Kings-County, New York	Scotland	—	Wife
1940	Mary J. Conroy	46	Ramsey-County, Minnesota	Minnesota	Plumber	Wife
1940	Mary Conroy	43	Allegheny-County, Pennsylvania	Pennsylvania	—	Wife
1930	Mary Conroy		Essex, New Jersey	New Jersey	Clerk	Daughter
1940	Mary Conroy	51	Rensselaer-County, New York	New York	—	Wife

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About Mary Conroy US Census Records & Model Tree

We've indexed 3672 free, proprietary US Census records for Mary Conroy across 1900–1950, covering 46 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, District of Columbia, Florida, 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 3672 US Census records for Mary Conroy, from 1900 to 1950, across 46 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 Conroy'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 Conroy 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 Conroy records from the 1900 through 1950 US Federal Census, across 46 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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