How many Mary Davis census records do you have?

We have 73407 US Census records for Mary Davis, from 1900 to 1950, across 50 states, DC, and 2 territories.

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

Yes. All Mary Davis 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 Davis?

We have Mary Davis records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 2 territories. Use the year and state filters to narrow your results.

How do I find Mary Davis 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 Davis?

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 Davis — US Census Records & Model Tree

We found 73407 free census records for Mary Davis across 6 census years (1900–1950), in 50 states, DC, and 2 territories and 2831 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Davis Census Records by State & County

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Showing of 73407 records for Mary Davis US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary Davis	42	Warren-County, North Carolina	North Carolina	Farm	Wife
1930	Mary E Davis		Strafford, New Hampshire	New Hampshire	—	Daughter
1920	Mary Davis		Suffolk, Massachusetts	Massachusetts	Operator	Daughter
1940	Mary Davis	20	Middlesex-County, Massachusetts	Massachusetts	Book-Binder	Daughter
1920	Mary Davis		Marion, South Carolina	South Carolina	—	Wife
1940	Mary E Davis	31	Warren-County, North Carolina	North Carolina	—	Wife
1910	Mary Davis		Marion, South Carolina	South Carolina	Laborer	Daughter
1920	Mary Davis		New Castle, Delaware	Delaware	Student	Daughter
1940	Mary Davis	22	Warren-County, North Carolina	North Carolina	House Work	Wife
1920	Mary Davis		Noxubee, Mississippi	Mississippi	Farm Help	Daughter
1940	Mary Davis	25	Baltimore-City-County, Maryland	Maryland	—	Wife
1940	Mary Ellen Davis	21	Swain-County, North Carolina	North Carolina	Teacher	Daughter
1940	Mary E Davis	39	Sedgwick-County, Kansas	Kansas	Nurse	Daughter
1930	Mary Davis		Mobile, Alabama	Alabama	Maid	Daughter
1930	Mary Davis		Pulaski, Arkansas	Arkansas	—	Wife
1940	Mary Davis	26	Russell-County, Alabama	Alabama	—	Wife
1930	Mary Davis		Brunswick, North Carolina	North Carolina	Laborer	Wife
1940	Mary Davis	54	Mitchell-County, Texas	Louisiana	0	Head
1940	Mary Davis	64	Philadelphia-County, Pennsylvania	Penna	Clerk	Head
1930	Mary E. Davis		Luzerne, Pennsylvania	England	—	Head
1900	Mary E. Davis	44	Suffolk, Massachusetts	New Hampshire	Cook	Head
1940	Mary Davis	71	Baltimore-City-County, Maryland	Maryland	—	Head
1920	Mary Davis		Lexington, South Carolina	South Carolina	—	Wife
1920	Mary Davis		Bolivar, Mississippi	Mississippi	Laborer	Wife
1920	Mary Davis		Philadelphia, Pennsylvania	Virginia	—	Wife
1930	Mary Davis		Autauga, Alabama	Alabama	Farm Laborer	Wife
1940	Mary Davis	48	Garden-County, Nebraska	Colorado	—	Wife
1940	Mary Davis	39	Shelby-County, Tennessee	Tennessee	—	Head
1910	Mary Davis		Shelby, Tennessee	Tennessee	Farm Laborer	Wife
1920	Mary Davis		Lackawanna, Pennsylvania	Wales	Yes	Wife

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About Mary Davis US Census Records & Model Tree

We've indexed 73407 free, proprietary US Census records for Mary Davis across 1900–1950, covering 50 states, DC, and 2 territories: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, 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, Puerto Rico, 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 73407 US Census records for Mary Davis, from 1900 to 1950, across 50 states, DC, and 2 territories.
: 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 Davis'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 Davis 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 Davis records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 2 territories. 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.