How many Mary Tobin census records do you have?

We have 2963 US Census records for Mary Tobin, from 1900 to 1950, across 48 states and DC.

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

Yes. All Mary Tobin 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 Tobin?

We have Mary Tobin records from the 1900 through 1950 US Federal Census, across 48 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Tobin 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 Tobin?

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 Tobin — US Census Records & Model Tree

We found 2963 free census records for Mary Tobin across 6 census years (1900–1950), in 48 states and DC and 407 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Tobin Census Records by State & County

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Showing of 2963 records for Mary Tobin US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary E. Tobin	24	New-York-County, New York	New York	Secretary	Daughter
1940	Mary Jane Tobin	38	Barren-County, Kentucky	Kentucky	—	Daughter
1920	Mary F. Tobin		Providence, Rhode Island	Rhode Island	Bookkeeper	Daughter
1920	Mary E. Tobin		Suffolk, Massachusetts	Ireland	None	Head
1940	Mary Tobin	47	New-York-County, New York	Illinois	—	Wife
1920	Mary Tobin		New York, New York	Ireland	—	Wife
1940	Mary E Tobin	76	Suffolk-County, Massachusetts	Ireland	—	Wife
1920	Mary E Tobin		Suffolk, Massachusetts	Ireland	—	Head
1920	Mary Tobin		Middlesex, Massachusetts	Newfoundland	—	Wife
1940	Mary G Tobin	29	Middlesex-County, Massachusetts	Newfoundland	Mach Operator	Daughter
1910	Mary Tobin		Hillsborough, New Hampshire	New Hampshire	Stitcher	Daughter
1930	Mary Tobin		Middlesex, Massachusetts	Massachusetts	—	Daughter
1940	Mary Tobin	11	Suffolk-County, Massachusetts	Massachusetts	—	Daughter
1930	Mary C. Tobin		Cook, Illinois	Illinois	—	Daughter
1930	Mary Tobin		Luzerne, Pennsylvania	Pennsylvania	—	Wife
1940	Mary A. Tobin	23	Delta-County, Michigan	Michigan	Stenographer	Daughter
1910	Mary A Tobin		Middlesex, Massachusetts	New Hampshire	—	Wife
1910	Mary F Tobin		Kings, New York	Ireland	—	Wife
1930	Mary E. Tobin		Albany, New York	New York	—	Daughter
1910	Mary F Tobin		Suffolk, Massachusetts	Massachusetts	None	Wife
1940	Mary Ellen Tobin	65	King-County, Washington	Michigan	—	Head
1940	Mary Tobin	32	Suffolk-County, Massachusetts	Irish Free State	—	Wife
1940	Mary Tobin	68	Barren-County, Kentucky	Kentucky	—	Head
1940	Mary C. Tobin	42	Dixon-County, Nebraska	Nebraska	—	Daughter
1940	Mary Tobin	31	Madison-County, New York	New York	Teacher	Daughter
1910	Mary Tobin		Ontario, New York	Ireland	—	Wife
1910	Mary Tobin		Suffolk, Massachusetts	Ireland	Housekeeper	Head
1940	Mary G. Tobin	18	Monroe-County, New York	New York	—	Daughter
1920	Mary Tobin		Hamilton, Ohio	Ohio	—	Daughter
1940	Mary Tobin	32	Hudson-County, New Jersey	New Jersey	Presser	Wife

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About Mary Tobin US Census Records & Model Tree

We've indexed 2963 free, proprietary US Census records for Mary Tobin across 1900–1950, covering 48 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 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 2963 US Census records for Mary Tobin, from 1900 to 1950, across 48 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 Tobin'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 Tobin 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 Tobin records from the 1900 through 1950 US Federal Census, across 48 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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