How many Mary Power census records do you have?

We have 2765 US Census records for Mary Power, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Power 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 Power?

We have Mary Power 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 Power 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 Power?

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 Power — US Census Records & Model Tree

We found 2765 free census records for Mary Power across 6 census years (1900–1950), in 49 states and DC and 638 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Power Census Records by State & County

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Showing of 2765 records for Mary Power US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary E Power		Baltimore, Maryland	Maryland	None	Daughter
1910	Mary Power		Allegheny, Pennsylvania	Pennsylvania	—	Daughter
1930	Mary E. Power		Marion, Indiana	Indiana	Saleslady	Daughter
1920	Mary Power		Worcester, Massachusetts	Ireland	—	Wife
1930	Mary T. Power		Suffolk, Massachusetts	Maine	—	Wife
1930	Mary E. Power		Jackson, Texas	Texas	—	Wife
1900	Mary Power	42	San Francisco, California	Ireland	—	Wife
1910	Mary Power		Middlesex, Massachusetts	Massachusetts	—	Daughter
1920	Mary Power		Providence, Rhode Island	Rhode Island	—	Daughter
1920	Mary Power		Worcester, Massachusetts	Massachusetts	None	Daughter
1910	Mary Power		Allegheny, Pennsylvania	Pennsylvania	Operator	Daughter
1910	Mary Power		Menard, Illinois	Illinois	—	Daughter
1910	Mary Power		Dane, Wisconsin	Wisconsin	—	Wife
1930	Mary A Power		Scott, Iowa	Germany	Manager	Head
1900	Mary E. Power	54	Middlesex, Massachusetts	Ireland	—	Wife
1920	Mary Power		Suffolk, Massachusetts	Ireland	—	Head
1900	Mary E Power	17	Bristol, Massachusetts	Ireland	Reeler	Daughter
1940	Mary Power	21	Middlesex-County, Massachusetts	Massachusetts	Salesgirl	Daughter
1910	Mary Power		Merrick, Nebraska	Iowa	—	Wife
1900	Mary Power	35	Suffolk, Massachusetts	Ireland	—	Wife
1910	Mary Power		Worcester, Massachusetts	Massachusetts	—	Daughter
1930	Mary Power		San Francisco, California	Ireland	—	Wife
1910	Mary Power		Marion, Indiana	Indiana	—	Daughter
1930	Mary Power		Middlesex, Massachusetts	Massachusetts	—	Daughter
1930	Mary J Power		Suffolk, Massachusetts	Massachusetts	—	Wife
1930	Mary E Power		Los Angeles, California	California	—	Daughter
1910	Mary E Power		Jackson, Missouri	Missouri	—	Wife
1930	Mary Power		Wayne, Mississippi	Mississippi	Labour	Daughter
1910	Mary A Power		New York, New York	Ireland	—	Wife
1900	Mary Power	27	Worcester, Massachusetts	Massachusetts	Saleslady	Daughter

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About Mary Power US Census Records & Model Tree

We've indexed 2765 free, proprietary US Census records for Mary Power across 1900–1950, covering 49 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, 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 2765 US Census records for Mary Power, 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 Power'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 Power 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 Power 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.

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