How many Mary Daly census records do you have?

We have 7135 US Census records for Mary Daly, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Daly 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 Daly?

We have Mary Daly 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 Daly 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 Daly?

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 Daly — US Census Records & Model Tree

We found 7135 free census records for Mary Daly across 6 census years (1900–1950), in 49 states and DC and 622 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

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Showing of 7135 records for Mary Daly US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary Daly	50	Campbell-County, Kentucky	Kentucky	Clerk	Daughter
1920	Mary Daly		None, District of Columbia	Dist of Col	—	Daughter
1930	Mary Daly		Hudson, New Jersey	New Jersey	—	Daughter
1940	Mary Daly	22	Essex-County, New Jersey	New Jersey	Assembling	Daughter
1920	Mary E Daly		Camden, New Jersey	New Jersey	Clerk	Daughter
1930	Mary A. Daly		Hennepin, Minnesota	Minnesota	Saleslady	Daughter
1940	Mary A. Daly	44	Bronx-County, New York	England	—	Wife
1940	Mary L. Daly	51	Providence-County, Rhode Island	Rhode Island	—	Wife
1920	Mary J Daly		Boone, Missouri	Missouri	—	Wife
1930	Mary E Daly		Bristol, Massachusetts	England	—	Wife
1920	Mary E. Daly		Massac, Illinois	Illinois	—	Wife
1940	Mary Daly	65	Hudson-County, New Jersey	Ireland	—	Head
1910	Mary Daly		Essex, New Jersey	New Jersey	—	Daughter
1910	Mary Daly		Cook, Illinois	Illinois	—	Wife
1940	Mary Daly	39	Westchester-County, New York	Irish Free State	—	Wife
1930	Mary Daly		St Louis, Missouri	Missouri	—	Head
1930	Mary Daly		Baltimore, Maryland	Maryland	—	Daughter
1930	Mary Daly		Morris, New Jersey	New Jersey	—	Daughter
1940	Mary Daly	47	Caddo-County, Louisiana	Texas	—	Wife
1910	Mary Daly		Bristol, Massachusetts	Rhode Island	—	Wife
1930	Mary E Daly		Cook, Illinois	Illinois	—	Daughter
1920	Mary L Daly		St Louis, Missouri	Missouri	—	Daughter
1940	Mary Daly	18	Caddo-County, Louisiana	Louisiana	—	Daughter
1900	Mary M Daly	42	Loudoun, Virginia	Virginia	—	Wife
1920	Mary E Daly		Crawford, Kansas	Kansas	None	Daughter
1910	Mary A. Daly		Providence, Rhode Island	Rhode Island	—	Wife
1930	Mary I Daly		Providence, Rhode Island	Rhode Island	Inspector	Daughter
1930	Mary Daly		Hudson, New Jersey	New Jersey	None	Wife
1930	Mary L. Daly		Jackson, Michigan	Michigan	—	Daughter
1910	Mary Daly		Orleans, Louisiana	Louisiana	—	Wife

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About Mary Daly US Census Records & Model Tree

We've indexed 7135 free, proprietary US Census records for Mary Daly across 1900–1950, covering 49 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, 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 7135 US Census records for Mary Daly, 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 Daly'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 Daly 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 Daly 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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