How many Mary Holland census records do you have?

We have 8243 US Census records for Mary Holland, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Holland 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 Holland?

We have Mary Holland 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 Holland 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 Holland?

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 Holland — US Census Records & Model Tree

We found 8243 free census records for Mary Holland across 6 census years (1900–1950), in 49 states and DC and 1463 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Holland Census Records by State & County

Records per state:

Census Record Search

First Name

Middle Name

Last Name (Required)

Census Year

State

Birth Year

Year Range

Birthplace

Age From

Age To

Exact match: Name Location Year

Alternate First Names (comma-separated)

Alternate Last Names (comma-separated)

County

Sex

Marital Status

Race

Relationship to Head

Occupation

Census Page ID

Family Members (in same household)

Search Records

Showing of 8243 records for Mary Holland US Census, ranked by Model Tree richness

No records match your filters.

Year	Name	Age	Location	Birthplace	Occupation	Relation
1910	Mary S Holland		Johnston, North Carolina	North Carolina	None	Daughter
1940	Mary E. Holland	23	Schenectady-County, New York	New York	Clerk	Daughter
1940	Mary Holland	27	Cook-County, Illinois	Illinois	—	Wife
1940	Mary Holland	45	Buchanan-County, Missouri	Missouri	—	Daughter
1930	Mary C Holland		Idaho, Idaho	Arkansas	—	Wife
1940	Mary Holland	47	Ripley-County, Missouri	Arkansas	—	Wife
1940	Mary E Holland	59	Salt-Lake-County, Utah	New Mexico	—	Wife
1930	Mary Holland		Suffolk, Massachusetts	Ireland	—	Head
1940	Mary E. Holland	61	Cook-County, Illinois	England	—	Wife
1940	Mary Holland	50	Montgomery-County, Ohio	Ohio	—	Wife
1920	Mary R Holland		Philadelphia, Pennsylvania	Kentucky	—	Wife
1940	Mary Holland	69	Summit-County, Ohio	Connecticut	—	Wife
1940	Mary Holland	52	Wayne-County, Michigan	England	—	Wife
1940	Mary W Holland	70	Baltimore-City-County, Maryland	Maryland	—	Wife
1910	Mary E Holland		X, District of Columbia	Maryland	—	Head
1940	Mary Holland	53	Winnebago-County, Iowa	Iowa	—	Wife
1900	Mary Holland	42	Calhoun, Alabama	Georgia	—	Wife
1930	Mary K Holland		Washington, Arkansas	Kentucky	—	Wife
1910	Mary B Holland		Cleveland, North Carolina	North Carolina	—	Wife
1920	Mary Holland		Robertson, Tennessee	Tennessee	—	Wife
1920	Mary Holland		Suffolk, Massachusetts	Massachusetts	Winder	Daughter
1940	Mary Ida Holland	16	Sumter-County, South Carolina	South Carolina	—	Daughter
1930	Mary Holland		Polk, Iowa	Iowa	Supervisor	Daughter
1910	Mary Holland		Washington, Alabama	Mississippi	None	Wife
1920	Mary Holland		Bristol, Massachusetts	Massachusetts	—	Daughter
1910	Mary G. Holland		Madison, Indiana	North Carolina	—	Daughter
1930	Mary L Holland		Trigg, Kentucky	Kentucky	—	Daughter
1940	Mary Holland	51	New-Madrid-County, Missouri	Mississippi	—	Wife
1940	Mary F Holland	45	Kings-County, New York	New York	Bookkeeper	Daughter
1910	Mary E Holland		York, Pennsylvania	Pennsylvania	—	Wife

Load More Mary Holland Census Records

About Mary Holland US Census Records & Model Tree

We've indexed 8243 free, proprietary US Census records for Mary Holland across 1900–1950, covering 49 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, 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 8243 US Census records for Mary Holland, 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 Holland'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 Holland 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 Holland 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.