How many Mary Tracy census records do you have?

We have 4591 US Census records for Mary Tracy, from 1900 to 1950, across 48 states and DC.

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

Yes. All Mary Tracy 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 Tracy?

We have Mary Tracy 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 Mary Tracy 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 Tracy?

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 Tracy — US Census Records & Model Tree

We found 4591 free census records for Mary Tracy across 6 census years (1900–1950), in 48 states and DC and 867 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Tracy Census Records by State & County

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Showing of 4591 records for Mary Tracy US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1930	Mary Tracy		Marion, Indiana	Indiana	Cashier	Daughter
1920	Mary Tracy		Union, New Jersey	New Jersey	—	Daughter
1920	Mary Tracy		Perry, Ohio	Ohio	—	Daughter
1930	Mary Tracy		Stark, Ohio	England	—	Wife
1900	Mary Tracy	46	New York, New York	Ireland	—	Wife
1920	Mary A. Tracy		Middlesex, Massachusetts	Scotland	Action Maker	Wife
1920	Mary Tracy		Monroe, New York	Italy	—	Head
1930	Mary Tracy		St Louis, Missouri	Ireland	—	Wife
1910	Mary Tracy		New York, New York	Ireland	None	Head
1930	Mary A. Tracy		Philadelphia, Pennsylvania	Delaware	—	Wife
1920	Mary E. Tracy		Weber, Utah	Colorado	—	Wife
1940	Mary Tracy	56	New-York-County, New York	Ireland	Laborer	Head
1940	Mary A. Tracy	30	Thomas-County, Kansas	Oklahoma	—	Wife
1940	Mary Tracy	10	Kings-County, New York	New York	—	Daughter
1920	Mary E Tracy		Hillsborough, New Hampshire	New Hampshire	None	Daughter
1900	Mary Tracy	47	Suffolk, Massachusetts	Ireland	—	Wife
1910	Mary Tracy		Berkshire, Massachusetts	Massachusetts	—	Wife
1940	Mary B Tracy	46	Lincoln-County, Oklahoma	Oklahoma	—	Wife
1930	Mary Tracy		Bronx, New York	Ireland	—	Wife
1920	Mary Tracy		New York, New York	New York	Supervisor	Daughter
1940	Mary Ellen Tracy	16	Champaign-County, Illinois	Illinois	—	Daughter
1910	Mary Tracy		None, New York	Ireland	—	Wife
1940	Mary E. Tracy	39	Cook-County, Illinois	Illinois	—	Daughter
1940	Mary Tracy	13	Delaware-County, Pennsylvania	Pennsylvania	—	Daughter
1910	Mary Tracy		Suffolk, Massachusetts	Ireland	—	Wife
1940	Mary Tracy	23	Hampden-County, Massachusetts	Massachusetts	Secretary	Daughter
1940	Mary Tracy	50	Cook-County, Illinois	Poland	—	Wife
1920	Mary D Tracy		Middlesex, Massachusetts	Massachusetts	—	Daughter
1940	Mary Tracy	26	Cook-County, Illinois	Illinois	Clerk	Daughter
1910	Mary Tracy		Philadelphia, Pennsylvania	Pennsylvania	—	Head

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About Mary Tracy US Census Records & Model Tree

We've indexed 4591 free, proprietary US Census records for Mary Tracy across 1900–1950, covering 48 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, 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 4591 US Census records for Mary Tracy, from 1900 to 1950, across 48 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 Tracy'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 Tracy 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 Tracy 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.

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