How many Mary Henry census records do you have?

We have 12927 US Census records for Mary Henry, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All Mary Henry 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 Henry?

We have Mary Henry records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. Use the year and state filters to narrow your results.

How do I find Mary Henry 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 Henry?

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 Henry — US Census Records & Model Tree

We found 12927 free census records for Mary Henry across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1886 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Henry Census Records by State & County

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Showing of 12927 records for Mary Henry US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary Elizabeth Henry	27	Floyd-County, Georgia	Alabama	Traveling Saleslady	Daughter
1920	Mary Henry		Montgomery, Alabama	Alabama	—	Daughter
1940	Mary Henry	21	Richland-County, Ohio	Ohio	—	Daughter
1940	Mary Henry	23	Nassau-County, New York	New York	—	Daughter
1930	Mary F Henry		Mason, West Virginia	West Virginia	—	Daughter
1930	Mary V. Henry		Bristol, Massachusetts	Massachusetts	Forelady	Daughter
1930	Mary Henry		Providence, Rhode Island	Rhode Island	Chemist	Daughter
1940	Mary Henry	31	Shelby-County, Indiana	Indiana	Cashier	Daughter
1930	Mary C. Henry		Worcester, Massachusetts	Massachusetts	Stenographer	Daughter
1900	Mary Henry	5	Pointe Coupee, Louisiana	Louisiana	Farm Laborer	Daughter
1940	Mary Henry	31	Orleans-County, Louisiana	Louisiana	—	Wife
1900	Mary Henry	32	Blount, Tennessee	Tennessee	—	Wife
1920	Mary A Henry		Loudon, Tennessee	Tennessee	None	Wife
1920	Mary Henry		Bronx, New York	Ireland	None	Wife
1940	Mary Q Henry	40	Faulkner-County, Arkansas	Arkansas	House Wife	Wife
1920	Mary T Henry		Anderson, South Carolina	Georgia	—	Wife
1920	Mary A Henry		Mercer, New Jersey	Pennsylvania	—	Wife
1940	Mary J. Henry	53	Benton-County, Minnesota	Minnesota	—	Wife
1920	Mary J. Henry		Dorchester, Maryland	Maryland	—	Wife
1940	Mary Henry	72	Warren-County, New Jersey	Illinois	—	Head
1940	Mary A. Henry	60	Bristol-County, Massachusetts	England	—	Wife
1920	Mary D. Henry		Saunders, Nebraska	Ohio	—	Head
1940	Mary Henry	65	Orleans-County, Louisiana	Louisiana	—	Head
1930	Mary Henry		Kings, New York	Ireland	Janitor	Head
1940	Mary Henry	68	Hillsborough-County, New Hampshire	New Hampshire	—	Head
1920	Mary Henry		Montgomery, Pennsylvania	Pennsylvania	Looper	Daughter
1920	Mary Henry		Elbert, Georgia	Georgia	—	Daughter
1940	Mary Henry	46	Drew-County, Arkansas	Arkansas	Housekeeper	Wife
1930	Mary Henry		Barbour, Alabama	Alabama	—	Daughter
1940	Mary Henry	43	Montgomery-County, Pennsylvania	Pennsylvania	Looper	Daughter

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About Mary Henry US Census Records & Model Tree

We've indexed 12927 free, proprietary US Census records for Mary Henry across 1900–1950, covering 50 states, DC, and 1 territory: 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, 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 12927 US Census records for Mary Henry, from 1900 to 1950, across 50 states, DC, and 1 territory.
: 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 Henry'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 Henry 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 Henry records from the 1900 through 1950 US Federal Census, across 50 states, DC, and 1 territory. 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 Henry US Census Records

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