How many Mary James census records do you have?

We have 23120 US Census records for Mary James, from 1900 to 1950, across 50 states, DC, and 3 territories.

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

Yes. All Mary James 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 James?

We have Mary James records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 3 territories. Use the year and state filters to narrow your results.

How do I find Mary James 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 James?

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 James — US Census Records & Model Tree

We found 23120 free census records for Mary James across 6 census years (1900–1950), in 50 states, DC, and 3 territories and 2449 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary James Census Records by State & County

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Showing of 23120 records for Mary James US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary H James		Salt Lake, Utah	Utah	Cashier	Daughter
1920	Mary James		Shelby, Tennessee	Arkansas	None	Daughter
1930	Mary E James		Baltimore, Maryland	Maryland	—	Wife
1920	Mary M. E. James		Columbiana, Ohio	Ohio	—	Wife
1930	Mary James		Philadelphia, Pennsylvania	Rhode Island	—	Wife
1940	Mary James	60	Sussex-County, Delaware	Delaware	—	Wife
1940	Mary I. James	45	Kern-County, California	Nebraska	—	Wife
1920	Mary H. James		Colusa, California	Norway	—	Wife
1920	Mary James		Cape May, New Jersey	New Jersey	—	Head
1940	Mary L James	58	Los-Angeles-County, California	Kansas	—	Wife
1910	Mary James		St Landry, Louisiana	Louisiana	—	Daughter
1940	Mary E. James	43	Providence-County, Rhode Island	Massachusetts	—	Wife
1940	Mary James	14	Roosevelt-County, New Mexico	New Mexico	—	Daughter
1930	Mary E James		Mason, West Virginia	West Virginia	—	Daughter
1940	Mary M. James	16	Lafayette-County, Missouri	Missouri	—	Daughter
1940	Mary James	12	Mason-County, Michigan	Michigan	—	Daughter
1940	Mary James	18	Jefferson-County, Oklahoma	Oklahoma	No	Daughter
1940	Mary D. James	15	Terrell-County, Georgia	Georgia	—	Daughter
1940	Mary James	19	Gilmer-County, West Virginia	West Virginia	—	Daughter
1910	Mary James		Kings, New York	Ireland	Checker	Daughter
1920	Mary L. James		San Augustine, Texas	Texas	—	Daughter
1910	Mary J. James		Laclede, Missouri	Missouri	—	Wife
1910	Mary E James		Yell, Arkansas	Arkansas	—	Wife
1940	Mary Alice James	23	Darlington-County, South Carolina	South Carolina	Laundress	Daughter
1940	Mary James	15	Fond-Du-Lac-County, Wisconsin	Wisconsin	—	Daughter
1910	Mary James		Anderson, South Carolina	South Carolina	—	Wife
1930	Mary James		Wayne, Michigan	Michigan	—	Daughter
1920	Mary James		Greenwood, Kansas	Kansas	Teacher	Daughter
1930	Mary Lou James		Washington, Mississippi	Mississippi	—	Daughter
1910	Mary B. James		Newport, Rhode Island	Rhode Island	Waitress	Daughter

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About Mary James US Census Records & Model Tree

We've indexed 23120 free, proprietary US Census records for Mary James across 1900–1950, covering 50 states, DC, and 3 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, U.S. Virgin Islands, 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 23120 US Census records for Mary James, from 1900 to 1950, across 50 states, DC, and 3 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 James'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 James 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 James records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 3 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.