How many Margaret Cox census records do you have?

We have 4290 US Census records for Margaret Cox, from 1900 to 1950, across 48 states and DC.

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

Yes. All Margaret Cox 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 Cox?

We have Margaret Cox 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 Margaret Cox 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 Cox?

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 Cox — US Census Records & Model Tree

We found 4290 free census records for Margaret Cox across 6 census years (1900–1950), in 48 states and DC and 1135 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 4290 records for Margaret Cox US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Margaret Cox		Vernon, Wisconsin	Wisconsin	—	Daughter
1930	Margaret J Cox		Albany, New York	New York	—	Daughter
1940	Margaret Cox	22	Tippecanoe-County, Indiana	Indiana	—	Daughter
1900	Margaret Cox	2	Warren, Mississippi	Mississippi	—	Daughter
1940	Margaret Cox	24	Washington-County, Tennessee	Tennessee	Hosiery Mill	Daughter
1940	Margaret Cox	21	Will-County, Illinois	Illinois	Teacher	Daughter
1940	Margaret Cox	25	Kanawha-County, West Virginia	West Virginia	—	Wife
1940	Margaret E. Cox	68	Hamilton-County, Tennessee	Tennessee	—	Wife
1940	Margaret Cox	44	Lake-County, Ohio	Ohio	—	Wife
1900	Margaret Cox	56	Middlesex, Massachusetts	Ireland	—	Wife
1940	Margaret Cox	56	Montgomery-County, Indiana	Indiana	—	Wife
1940	Margaret Cox	59	Polk-County, Iowa	Iowa	—	Head
1940	Margaret Cox	63	St.-Clair-County, Illinois	Illinois	—	Wife
1910	Margaret C. Cox		Burlington, New Jersey	New Jersey	—	Wife
1940	Margaret Cox	55	Grayson-County, Texas	Texas	Matron	Head
1940	Margaret Cox	39	Albany-County, New York	New York	—	Wife
1940	Margaret E. Cox	16	Jackson-County, Missouri	Missouri	Stenographer	Daughter
1940	Margaret Cox	15	Suffolk-County, Massachusetts	Massachusetts	—	Daughter
1910	Margaret Cox		New York, New York	Ireland	—	Head
1920	Margaret Cox		Latah, Idaho	Idaho	None	Daughter
1940	Margaret J Cox	11	Tulare-County, California	California	—	Daughter
1940	Margaret Cox	10	Pasquotank-County, North Carolina	North Carolina	—	Daughter
1940	Margaret E. Cox	19	Watauga-County, North Carolina	North Carolina	—	Daughter
1910	Margaret Cox		Philadelphia, Pennsylvania	Pennsylvania	—	Daughter
1940	Margaret Cox	56	Kane-County, Utah	Utah	—	Wife
1920	Margaret Cox		Spokane, Washington	Minnesota	—	Daughter
1940	Margaret Cox	12	Fulton-County, Georgia	Georgia	—	Daughter
1930	Margaret Cox		Park, Wyoming	Wyoming	None	Daughter
1920	Margaret Cox		Wayne, Michigan	Michigan	Clerk	Daughter
1940	Margaret E. Cox	15	Sherburne-County, Minnesota	Minnesota	—	Daughter

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About Margaret Cox US Census Records & Model Tree

We've indexed 4290 free, proprietary US Census records for Margaret Cox across 1900–1950, covering 48 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, 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 4290 US Census records for Margaret Cox, from 1900 to 1950, across 48 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 Cox'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 Cox 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 Cox 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.