How many Mary Mcmillan census records do you have?

We have 2983 US Census records for Mary Mcmillan, from 1900 to 1950, across 50 states and DC.

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

Yes. All Mary Mcmillan 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 Mcmillan?

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

How do I find Mary Mcmillan 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 Mcmillan?

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 Mcmillan — US Census Records & Model Tree

We found 2983 free census records for Mary Mcmillan across 6 census years (1900–1950), in 50 states and DC and 883 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Mcmillan Census Records by State & County

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Showing of 2983 records for Mary Mcmillan US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Mary Mcmillan		Cumberland, North Carolina	North Carolina	—	Daughter
1910	Mary B Mcmillan		Robeson, North Carolina	North Carolina	—	Daughter
1920	Mary Mcmillan		Bladen, North Carolina	North Carolina	None	Daughter
1930	Mary M. Mcmillan		Wilcox, Alabama	Alabama	Laborer	Daughter
1940	Mary Mcmillan	32	Robeson-County, North Carolina	North Carolina	Housework	Head
1940	Mary L. Mcmillan	52	Merrick-County, Nebraska	Nebraska	—	Wife
1910	Mary E Mcmillan		Robeson, North Carolina	North Carolina	Laborer	Wife
1920	Mary Ann Mcmillan		Multnomah, Oregon	Oregon	—	Wife
1930	Mary H. Mcmillan		Prairie, Montana	Scotland	Proprietor	Head
1930	Mary S Mcmillan		Robeson, North Carolina	North Carolina	Farmer	Head
1920	Mary Mcmillan		Conecuh, Alabama	Alabama	Farmer	Daughter
1910	Mary G. Mcmillan		Robeson, North Carolina	North Carolina	Farm Laborer	Daughter
1940	Mary Mcmillan	39	Kings-County, New York	Scotland	—	Wife
1910	Mary Mcmillan		Robeson, North Carolina	North Carolina	—	Daughter
1940	Mary Mcmillan	35	Sumter-County, South Carolina	South Carolina	—	Wife
1930	Mary H. Mcmillan		Orangeburg, South Carolina	South Carolina	—	Daughter
1930	Mary E. Mcmillan		Yellowstone, Montana	Montana	—	Daughter
1930	Mary M. Mcmillan		Yellowstone, Montana	Missouri	—	Wife
1940	Mary Lena Mcmillan	42	Jackson-County, Mississippi	Alabama	—	Wife
1930	Mary Mcmillan		Knox, Indiana	Indiana	—	Daughter
1930	Mary O. Mcmillan		Jones, Mississippi	Mississippi	—	Daughter
1930	Mary L. Mcmillan		Cumberland, North Carolina	North Carolina	—	Daughter
1930	Mary H Mcmillan		Talladega, Alabama	Alabama	—	Daughter
1940	Mary Mcmillan	35	Salt-Lake-County, Utah	Utah	—	Wife
1930	Mary R Mcmillan		Wayne, Michigan	Michigan	—	Daughter
1900	Mary E Mcmillan	34	Weld, Colorado	Illinois	—	Wife
1910	Mary Mcmillan		Cumberland, North Carolina	North Carolina	—	Daughter
1930	Mary L. Mcmillan		Duplin, North Carolina	North Carolina	—	Daughter
1930	Mary L. Mcmillan		Wabash, Illinois	Illinois	None	Daughter
1920	Mary Mcmillan		Monroe, Mississippi	Mississippi	Laborer	Daughter

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About Mary Mcmillan US Census Records & Model Tree

We've indexed 2983 free, proprietary US Census records for Mary Mcmillan across 1900–1950, covering 50 states and DC: Alabama, Alaska, 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 2983 US Census records for Mary Mcmillan, from 1900 to 1950, across 50 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 Mcmillan'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 Mcmillan 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 Mcmillan records from the 1900 through 1950 US Federal Census, across 50 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.

Other Mcmillan US Census Records

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