How many Mary Donohue census records do you have?

We have 4119 US Census records for Mary Donohue, from 1900 to 1950, across 46 states and DC.

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

Yes. All Mary Donohue 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 Donohue?

We have Mary Donohue records from the 1900 through 1950 US Federal Census, across 46 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Donohue 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 Donohue?

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 Donohue — US Census Records & Model Tree

We found 4119 free census records for Mary Donohue across 6 census years (1900–1950), in 46 states and DC and 399 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Donohue Census Records by State & County

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Showing of 4119 records for Mary Donohue US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary P. Donohue		Erie, New York	New York	—	Daughter
1930	Mary Donohue		New Castle, Delaware	Delaware	—	Wife
1930	Mary C Donohue		New Castle, Delaware	Delaware	—	Wife
1930	Mary E. Donohue		Broome, New York	Pennsylvania	—	Head
1940	Mary A Donohue	12	Napa-County, California	California	—	Daughter
1930	Mary Donohue		Philadelphia, Pennsylvania	Pennsylvania	Operator	Daughter
1940	Mary Donohue	14	Philadelphia-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary Donohue	13	St.-Louis-City-County, Missouri	Missouri	—	Daughter
1930	Mary Donohue		Luzerne, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary Donohue	15	Jones-County, Iowa	Iowa	—	Daughter
1940	Mary Donohue	18	Philadelphia-County, Pennsylvania	Penna	New Worker	Daughter
1940	Mary Donohue	17	Bergen-County, New Jersey	New Jersey	—	Daughter
1930	Mary Donohue		Hudson, New Jersey	New Jersey	—	Daughter
1940	Mary Donohue	13	Allegheny-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary E Donohue	15	Johnson-County, Iowa	Iowa	—	Daughter
1920	Mary Donohue		Montgomery, Pennsylvania	Pennsylvania	None	Daughter
1920	Mary Donohue		Suffolk, Massachusetts	Massachusetts	—	Daughter
1930	Mary Donohue		New York, New York	Ireland	—	Wife
1940	Mary A. Donohue	69	Essex-County, New Jersey	Pennsylvania	—	Wife
1940	Mary J. Donohue	22	Essex-County, New Jersey	New Jersey	Stenographer	Daughter
1930	Mary E Donohue		Wyandotte, Kansas	Kansas	—	Daughter
1940	Mary Carolyn Donohue	15	Marion-County, Indiana	Indiana	—	Daughter
1940	Mary Donohue	55	Monroe-County, New York	Irish Free State	Housewife	Wife
1910	Mary Donohue		Rensselaer, New York	England	—	Wife
1930	Mary Donohue		Luzerne, Pennsylvania	Pennsylvania	None	Daughter
1920	Mary M. Donohue		Pueblo, Colorado	Colorado	—	Daughter
1940	Mary M. Donohue	55	Worcester-County, Massachusetts	Irish Free State	—	Wife
1930	Mary Donohue		Philadelphia, Pennsylvania	Pennsylvania	—	Daughter
1940	Mary Donohue	36	Bronx-County, New York	Irish Free State	—	Head
1940	Mary Jo Donohue	14	Deer-Lodge-County, Montana	Montana	—	Daughter

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About Mary Donohue US Census Records & Model Tree

We've indexed 4119 free, proprietary US Census records for Mary Donohue across 1900–1950, covering 46 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, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin.

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 4119 US Census records for Mary Donohue, from 1900 to 1950, across 46 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 Donohue'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 Donohue 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 Donohue records from the 1900 through 1950 US Federal Census, across 46 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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