How many Martha Cooper census records do you have?

We have 2969 US Census records for Martha Cooper, from 1900 to 1950, across 48 states and DC.

What's in a Martha Cooper census record?

You'll see Martha'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 Martha Cooper'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 Martha Cooper census records free?

Yes. All Martha Cooper 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 Martha Cooper?

We have Martha Cooper 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 Martha Cooper 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 Martha Cooper?

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.

Martha Cooper — US Census Records & Model Tree

We found 2969 free census records for Martha Cooper across 6 census years (1900–1950), in 48 states and DC and 1035 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Martha Cooper Census Records by State & County

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Showing of 2969 records for Martha Cooper US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Martha E. Cooper		San Francisco, California	California	Typist	Daughter
1940	Martha Cooper	66	Monmouth-County, New Jersey	New Jersey	—	Wife
1940	Martha Cooper	53	Kings-County, New York	New York	—	Wife
1920	Martha J Cooper		Page, Iowa	Kentucky	—	Wife
1920	Martha Cooper		Leake, Mississippi	Mississippi	—	Wife
1940	Martha J. Cooper	58	Klickitat-County, Washington	California	Housewife	Wife
1920	Martha Cooper		Passaic, New Jersey	Scotland	—	Wife
1940	Martha Cooper	42	Cuyahoga-County, Ohio	Russia	—	Wife
1930	Martha Cooper		New Castle, Delaware	Delaware	None	Daughter
1940	Martha Cooper	39	Terrebonne-County, Louisiana	Louisiana	Housekeeper	Wife
1940	Martha Cooper	12	Carroll-County, Georgia	Georgia	—	Daughter
1940	Martha Cooper	13	Jefferson-County, Kentucky	Ohio	—	Daughter
1940	Martha E. Cooper	37	Pickett-County, Tennessee	Tennessee	—	Wife
1940	Martha Jane Cooper	48	Russell-County, Kentucky	Kentucky	No	Wife
1930	Martha Cooper		Williamsburg, South Carolina	South Carolina	—	Daughter
1940	Martha Cooper	32	King-County, Washington	Washington	—	Wife
1920	Martha E Cooper		Greene, Indiana	Indiana	—	Wife
1940	Martha Cooper	14	Okaloosa-County, Florida	Florida	—	Daughter
1910	Martha Cooper		Clarke, Georgia	Georgia	Farm Laborer	Daughter
1940	Martha Cooper	22	Dallas-County, Texas	Texas	—	Daughter
1920	Martha Cooper		Essex, New Jersey	Pennsylvania	Button	Daughter
1910	Martha Cooper		Morris, New Jersey	New Jersey	Teacher	Daughter
1940	Martha Cooper	26	St.-Helena-County, Louisiana	Louisiana	Laborer	Daughter
1910	Martha Cooper		Philadelphia, Pennsylvania	England	—	Wife
1910	Martha M. Cooper		Greene, Indiana	Indiana	—	Wife
1930	Martha Cooper		Philadelphia, Pennsylvania	Pennsylvania	Student	Daughter
1910	Martha A. Cooper		York, Pennsylvania	Pennsylvania	—	Wife
1920	Martha Cooper		Franklin, Ohio	Ohio	Cashier	Daughter
1940	Martha Cooper	54	Orange-County, Texas	Louisiana	—	Wife
1940	Martha Cooper	11	Chatham-County, Georgia	Georgia	—	Daughter

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About Martha Cooper US Census Records & Model Tree

We've indexed 2969 free, proprietary US Census records for Martha Cooper across 1900–1950, covering 48 states and DC: Alabama, Alaska, 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, 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 Martha 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 2969 US Census records for Martha Cooper, from 1900 to 1950, across 48 states and DC.
: You'll see Martha'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 Martha Cooper'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 Martha Cooper 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 Martha Cooper 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.