How many Mary Richards census records do you have?

We have 9639 US Census records for Mary Richards, from 1900 to 1950, across 50 states, DC, and 1 territory.

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

Yes. All Mary Richards 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 Richards?

We have Mary Richards 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 Richards 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 Richards?

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 Richards — US Census Records & Model Tree

We found 9639 free census records for Mary Richards across 6 census years (1900–1950), in 50 states, DC, and 1 territory and 1588 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Richards Census Records by State & County

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Showing of 9639 records for Mary Richards US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1920	Mary Richards		Polk, Oregon	Wyoming	None	Daughter
1940	Mary Jane Richards	22	Tillamook-County, Oregon	Oregon	New Worker	Daughter
1940	Mary Richards	29	Clallam-County, Washington	Washington	Bookkeeper	Daughter
1930	Mary Richards		Wayne, Michigan	Rhode Island	—	Wife
1930	Mary F. Richards		Middlesex, Massachusetts	England	—	Head
1920	Mary A Richards		Pittsburg, Oklahoma	Wales	—	Head
1940	Mary Richards	55	Sangamon-County, Illinois	Ohio	—	Wife
1900	Mary Richards	39	San Francisco, California	Indiana	\|Yes	Wife
1940	Mary Richards	68	Essex-County, New Jersey	England	—	Wife
1940	Mary Richards	63	New-Castle-County, Delaware	Delaware	—	Wife
1940	Mary Richards	69	Providence-County, Rhode Island	England	—	Head
1920	Mary Richards		Edmunds, South Dakota	Wales	Farmer	Head
1930	Mary Richards		Baltimore, Maryland	Maryland	—	Wife
1940	Mary Richards	49	Wayne-County, Michigan	Connecticut	—	Wife
1920	Mary E. Richards		Hennepin, Minnesota	New Hampshire	—	Wife
1940	Mary Richards	89	Navajo-County, Arizona	Utah	—	Head
1930	Mary E. Richards		Middlesex, Massachusetts	Maine	Secretary	Head
1940	Mary Richards	14	Wood-County, West Virginia	West Virginia	—	Daughter
1940	Mary J Richards	15	Piscataquis-County, Maine	Maine	Housekeeper	Daughter
1900	Mary Richards	10	Sumter, South Carolina	South Carolina	—	Daughter
1930	Mary E Richards		Jefferson, Alabama	Alabama	—	Daughter
1930	Mary Richards		Cook, Illinois	Illinois	—	Daughter
1920	Mary Jane Richards		Calhoun, West Virginia	West Virginia	—	Daughter
1900	Mary Richards	7	Cook, Illinois	Oklahoma	At School	Daughter
1940	Mary Richards	36	Providence-County, Rhode Island	Rhode Island	—	Wife
1910	Mary Richards		Hawkins, Tennessee	Tennessee	None	Wife
1940	Mary Richards	15	Houghton-County, Michigan	Michigan	—	Daughter
1900	Mary Richards	35	New Castle, Delaware	Delaware	—	Wife
1910	Mary Richards		Sumter, South Carolina	South Carolina	Farm Laborer	Daughter
1910	Mary Ann Richards		Ritchie, West Virginia	West Virginia	None	Wife

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About Mary Richards US Census Records & Model Tree

We've indexed 9639 free, proprietary US Census records for Mary Richards 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 9639 US Census records for Mary Richards, 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 Richards'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 Richards 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 Richards 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.