How many Margaret Mccormick census records do you have?

We have 3325 US Census records for Margaret Mccormick, from 1900 to 1950, across 48 states, DC, and 1 territory.

What's in a Margaret Mccormick 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 Mccormick'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 Mccormick census records free?

Yes. All Margaret Mccormick 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 Mccormick?

We have Margaret Mccormick records from the 1900 through 1950 US Federal Census, across 48 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find Margaret Mccormick 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 Mccormick?

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 Mccormick — US Census Records & Model Tree

We found 3325 free census records for Margaret Mccormick across 6 census years (1900–1950), in 48 states, DC, and 1 territory and 635 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Margaret Mccormick Census Records by State & County

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Showing of 3325 records for Margaret Mccormick US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Margaret Mccormick	30	Allegheny-County, Pennsylvania	Pennsylvania	Clerk-Cont.	Daughter
1930	Margaret Mccormick		Camden, New Jersey	New Jersey	Winder	Daughter
1920	Margaret Mccormick		Providence, Rhode Island	Rhode Island	Bookkeeper	Daughter
1940	Margaret Mccormick	26	Essex-County, Massachusetts	Massachusetts	Teacher	Daughter
1930	Margaret M. Mccormick		Newport, Rhode Island	Rhode Island	Sec'Y Stenographer	Daughter
1940	Margaret Mccormick	23	Rockland-County, New York	New York	Stenographer	Daughter
1930	Margaret Mccormick		Hudson, New Jersey	New York	Operator	Daughter
1940	Margaret Mccormick	26	Knox-County, Ohio	Ohio	Librarian	Daughter
1930	Margaret Mccormick		New York, New York	New York	None	Daughter
1940	Margaret M. Mccormick	56	Pierce-County, Washington	Kansas	—	Wife
1930	Margaret Mccormick		New York, New York	Ireland	—	Head
1940	Margaret Mccormick	53	Wayne-County, Pennsylvania	Pennsylvania	—	Wife
1920	Margaret Mccormick		Cedar, Iowa	Scotland	None	Wife
1930	Margaret H. Mccormick		Skagit, Washington	Kentucky	—	Wife
1930	Margaret Mccormick		Washington, Arkansas	Arkansas	None	Head
1920	Margaret Mccormick		Cook, Illinois	Illinois	—	Daughter
1930	Margaret Mccormick		Cook, Illinois	Illinois	—	Daughter
1940	Margaret Mccormick	14	Allegheny-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Margaret Mccormick	46	Essex-County, New Jersey	New Jersey	—	Wife
1940	Margaret Mccormick	41	Monongalia-County, West Virginia	Pennsylvania	—	Wife
1930	Margaret Mccormick		Passaic, New Jersey	New Jersey	—	Wife
1910	Margaret Mccormick		Champaign, Illinois	Illinois	—	Wife
1940	Margaret M. Mccormick	22	St.-Louis-City-County, Missouri	Missouri	—	Daughter
1940	Margaret Mccormick	30	Erie-County, New York	New York	—	Wife
1920	Margaret Mccormick		Randolph, Illinois	Illinois	—	Daughter
1940	Margaret Mccormick	51	Kings-County, New York	New York	—	Wife
1930	Margaret Mccormick		New York, New York	New York	Typist	Daughter
1930	Margaret Mccormick		Cook, Illinois	Illinois	Typist	Daughter
1940	Margaret Mccormick	27	Suffolk-County, Massachusetts	Massachusetts	—	Wife
1920	Margaret Mccormick		Montgomery, Pennsylvania	Pennsylvania	Stenographer	Daughter

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About Margaret Mccormick US Census Records & Model Tree

We've indexed 3325 free, proprietary US Census records for Margaret Mccormick across 1900–1950, covering 48 states, DC, and 1 territory: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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 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 3325 US Census records for Margaret Mccormick, from 1900 to 1950, across 48 states, DC, and 1 territory.
: 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 Mccormick'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 Mccormick 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 Mccormick records from the 1900 through 1950 US Federal Census, across 48 states, DC, and 1 territory. 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 Mccormick US Census Records

James Mccormick John Mccormick Mary Mccormick Robert Mccormick Thomas Mccormick William Mccormick

All Mccormick census records →

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