How many Margaret Mcdermott census records do you have?

We have 3428 US Census records for Margaret Mcdermott, from 1900 to 1950, across 47 states and DC.

What's in a Margaret Mcdermott census record?

You'll see Margaret'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 Margaret Mcdermott'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 Margaret Mcdermott census records free?

Yes. All Margaret Mcdermott 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 Margaret Mcdermott?

We have Margaret Mcdermott records from the 1900 through 1950 US Federal Census, across 47 states and DC. Use the year and state filters to narrow your results.

How do I find Margaret Mcdermott 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 Margaret Mcdermott?

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.

Margaret Mcdermott — US Census Records & Model Tree

We found 3428 free census records for Margaret Mcdermott across 6 census years (1900–1950), in 47 states and DC and 413 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Margaret Mcdermott Census Records by State & County

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Showing of 3428 records for Margaret Mcdermott US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Margaret Mcdermott		New York, New York	Ireland	None	Wife
1940	Margaret Mcdermott	22	Lackawanna-County, Pennsylvania	PENNSYLVANIA	Dress Maker	Daughter
1930	Margaret Mcdermott		Lackawanna, Pennsylvania	Pennsylvania	Bookkeeper	Daughter
1940	Margaret Mcdermott	21	Philadelphia-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Margaret A. Mcdermott	24	Allegheny-County, Pennsylvania	Pennsylvania	—	Wife
1940	Margaret Mcdermott	38	Kings-County, New York	New York	Clerk	Daughter
1920	Margaret Mcdermott		New York, New York	New York	—	Wife
1920	Margaret Mcdermott		Kings, New York	New York	Yes	Head
1940	Margaret Mcdermott	56	Philadelphia-County, Pennsylvania	Rhode Island	—	Wife
1940	Margaret Mcdermott	52	Deer-Lodge-County, Montana	Scotland	—	Wife
1920	Margaret Mcdermott		Kings, New York	Ireland	—	Head
1940	Margaret Mcdermott	57	Bergen-County, New Jersey	Ireland	—	Wife
1930	Margaret Mcdermott		Hudson, New Jersey	Ireland	—	Head
1930	Margaret Mcdermott		New York, New York	Ireland	—	Wife
1940	Margaret Mcdermott	57	Bronx-County, New York	Ireland	—	Wife
1920	Margaret Mcdermott		Cook, Illinois	Ireland	Toy Maker	Head
1940	Margaret Mcdermott	18	Providence-County, Rhode Island	Rhode Island	—	Daughter
1940	Margaret Mcdermott	11	Sullivan-County, New York	New York	—	Daughter
1920	Margaret Mcdermott		New York, New York	New York	Student	Daughter
1940	Margaret Mcdermott	26	Cook-County, Illinois	Illinois	Clerk	Daughter
1940	Margaret Mcdermott	25	Hudson-County, New Jersey	New Jersey	Stenographer	Daughter
1930	Margaret Mcdermott		Philadelphia, Pennsylvania	Pennsylvania	—	Daughter
1920	Margaret Mcdermott		Philadelphia, Pennsylvania	Pennsylvania	Stock Girl	Daughter
1920	Margaret Mcdermott		Champaign, Illinois	Illinois	None	Daughter
1910	Margaret Mcdermott		New Castle, Delaware	Delaware	Teacher	Daughter
1920	Margaret M. Mcdermott		Kings, New York	New York	Typist	Daughter
1930	Margaret L. Mcdermott		Woodbury, Iowa	Iowa	—	Daughter
1920	Margaret Mcdermott		San Francisco, California	California	—	Daughter
1910	Margaret Mcdermott		Middlesex, Massachusetts	Ireland	—	Wife
1930	Margaret Mcdermott		Lackawanna, Pennsylvania	Pennsylvania	Cashier	Daughter

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About Margaret Mcdermott US Census Records & Model Tree

We've indexed 3428 free, proprietary US Census records for Margaret Mcdermott across 1900–1950, covering 47 states and DC: Alabama, Arizona, 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, 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 Margaret 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 3428 US Census records for Margaret Mcdermott, from 1900 to 1950, across 47 states and DC.
: You'll see Margaret'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 Margaret Mcdermott'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 Margaret Mcdermott 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 Margaret Mcdermott records from the 1900 through 1950 US Federal Census, across 47 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.

Other Mcdermott US Census Records

James Mcdermott John Mcdermott Mary Mcdermott Thomas Mcdermott William Mcdermott

All Mcdermott census records →

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