How many Mary Buck census records do you have?

We have 4016 US Census records for Mary Buck, from 1900 to 1950, across 49 states and DC.

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

Yes. All Mary Buck 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 Buck?

We have Mary Buck 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 Buck 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 Buck?

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 Buck — US Census Records & Model Tree

We found 4016 free census records for Mary Buck across 6 census years (1900–1950), in 49 states and DC and 1034 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Buck Census Records by State & County

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Showing of 4016 records for Mary Buck US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary Buck	55	Hudson-County, New Jersey	Poland	—	Wife
1940	Mary A. Buck	62	Scott-County, Iowa	Germany	—	Wife
1920	Mary A. Buck		Fulton, Illinois	Delaware	—	Head
1910	Mary Buck		Somerset, Pennsylvania	Austria	—	Wife
1910	Mary Buck		Richmond, Georgia	Georgia	—	Daughter
1930	Mary L. Buck		King, Washington	Washington	Stenographer	Daughter
1940	Mary E. Buck	48	Tyler-County, West Virginia	West Virginia	Teacher	Wife
1910	Mary R. Buck		Arapahoe, Colorado	Colorado	—	Daughter
1910	Mary Buck		Pitt, North Carolina	North Carolina	None	Wife
1910	Mary M Buck		Ringgold, Iowa	Missouri	—	Daughter
1940	Mary M. Buck	17	Cambria-County, Pennsylvania	Pennsylvania	—	Daughter
1910	Mary Buck		Jefferson, Kentucky	Kentucky	None	Wife
1920	Mary Buck		Camden, New Jersey	Italy	—	Wife
1930	Mary Buck		Suffolk, Massachusetts	Massachusetts	—	Daughter
1910	Mary Lou Buck		Clarke, Alabama	Alabama	—	Daughter
1930	Mary Buck		Grafton, New Hampshire	Vermont	—	Daughter
1940	Mary D. Buck	44	Columbia-County, Arkansas	Arkansas	—	Wife
1910	Mary V Buck		Modoc, California	California	None	Daughter
1920	Mary R. Buck		Washington, Tennessee	Virginia	None	Wife
1910	Mary B. Buck		Sangamon, Illinois	Virginia	Housekeeper	Head
1910	Mary A. Buck		Clark, Ohio	Rhode Island	Dressmaker	Wife
1940	Mary Virginia Buck	17	Allen-County, Louisiana	Louisiana	—	Daughter
1910	Mary M Buck		Douglas, Minnesota	Minnesota	—	Daughter
1940	Mary Elizabeth Buck	23	Henderson-County, Tennessee	Tennessee	—	Wife
1910	Mary A Buck		Carter, Kentucky	Kentucky	—	Wife
1910	Mary J Buck		Philadelphia, Pennsylvania	Newfoundland	—	Wife
1920	Mary E Buck		Pitt, North Carolina	North Carolina	—	Daughter
1940	Mary D Buck	12	Davidson-County, Tennessee	Tennessee	—	Daughter
1940	Mary E. Buck	13	Carteret-County, North Carolina	North Carolina	—	Daughter
1910	Mary Buck		Hamilton, Ohio	Germany	Laborer	Wife

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About Mary Buck US Census Records & Model Tree

We've indexed 4016 free, proprietary US Census records for Mary Buck across 1900–1950, covering 49 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, 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 4016 US Census records for Mary Buck, 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 Buck'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 Buck 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 Buck 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.