How many Mary Cobb census records do you have?

We have 4272 US Census records for Mary Cobb, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Cobb 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 Cobb?

We have Mary Cobb records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Cobb 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 Cobb?

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 Cobb — US Census Records & Model Tree

We found 4272 free census records for Mary Cobb across 6 census years (1900–1950), in 49 states and DC and 1157 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Cobb Census Records by State & County

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Showing of 4272 records for Mary Cobb US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	Mary E Cobb		Dallas, Texas	Kentucky	None	Wife
1940	Mary Cobb	52	Nash-County, North Carolina	North Carolina	—	Head
1940	Mary Cobb	60	Wilson-County, North Carolina	North Carolina	House Work	Wife
1940	Mary L. Cobb	68	Cumberland-County, Maine	Maine	—	Head
1940	Mary Cobb	18	Halifax-County, North Carolina	North Carolina	New Worker	Daughter
1940	Mary Jane Cobb	13	Mclean-County, Kentucky	Kentucky	—	Daughter
1940	Mary A Cobb	19	Pittsylvania-County, Virginia	Virginia	—	Daughter
1910	Mary Cobb		None, None	Tennessee	None	Daughter
1930	Mary Cobb		Boone, Arkansas	Arkansas	—	Daughter
1940	Mary L. Cobb	11	Fairfax-County, Virginia	Virginia	—	Daughter
1910	Mary Cobb		Kings, New York	New York	Bookkeeper	Daughter
1930	Mary Matilde Cobb		Creek, Oklahoma	Arkansas	—	Wife
1910	Mary E Cobb		Caswell, North Carolina	North Carolina	—	Daughter
1910	Mary Cobb		Desoto, Mississippi	Mississippi	Laborer	Wife
1910	Mary Cobb		Caswell, North Carolina	North Carolina	—	Daughter
1910	Mary Bird Cobb		St Johns, Florida	South Carolina	—	Daughter
1900	Mary Cobb	29	Caswell, North Carolina	North Carolina	—	Wife
1940	Mary B. Cobb	40	Payne-County, Oklahoma	Missouri	—	Wife
1940	Mary Cobb	40	Tate-County, Mississippi	Mississippi	—	Wife
1940	Mary M Cobb	10	Jessamine-County, Kentucky	Kentucky	—	Daughter
1910	Mary Cobb		Tallapoosa, Alabama	Alabama	—	Daughter
1930	Mary Cobb		Fulton, Georgia	Georgia	—	Daughter
1930	Mary Cobb		Bowie, Texas	Texas	None	Daughter
1920	Mary D Cobb		Madison, Alabama	Alabama	None	Daughter
1930	Mary L. Cobb		Muhlenberg, Kentucky	Kentucky	—	Daughter
1930	Mary Cobb		Madison, Alabama	Alabama	—	Daughter
1940	Mary D. Cobb	44	Payne-County, Oklahoma	Arkansas	—	Wife
1920	Mary L Cobb		Alameda, California	North Carolina	—	Wife
1940	Mary Helen Cobb	14	Rutherford-County, North Carolina	North Carolina	—	Daughter
1930	Mary Cobb		Lenoir, North Carolina	North Carolina	Janitor	Daughter

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About Mary Cobb US Census Records & Model Tree

We've indexed 4272 free, proprietary US Census records for Mary Cobb across 1900–1950, covering 49 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 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 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 4272 US Census records for Mary Cobb, from 1900 to 1950, across 49 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 Cobb'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 Cobb 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 Cobb records from the 1900 through 1950 US Federal Census, across 49 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.