How many Dorothy Long census records do you have?

We have 3634 US Census records for Dorothy Long, from 1900 to 1950, across 49 states and DC.

What's in a Dorothy Long census record?

You'll see Dorothy'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 Dorothy Long'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 Dorothy Long census records free?

Yes. All Dorothy Long 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 Dorothy Long?

We have Dorothy Long 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 Dorothy Long 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 Dorothy Long?

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.

Dorothy Long — US Census Records & Model Tree

We found 3634 free census records for Dorothy Long across 6 census years (1900–1950), in 49 states and DC and 1076 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Dorothy Long Census Records by State & County

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Showing of 3634 records for Dorothy Long US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Dorothy Long	31	Allegheny-County, Pennsylvania	Pennsylvania	Bookkeeper	Daughter
1940	Dorothy A Long	33	Cayuga-County, New York	New York	Teacher	Daughter
1930	Dorothy E Long		Montgomery, Ohio	Ohio	Dictaphone Op	Daughter
1940	Dorothy Long	20	Erie-County, New York	New York	40	Daughter
1940	Dorothy M. Long	23	Lucas-County, Ohio	Ohio	Clerk	Daughter
1940	Dorothy Long	22	Dallas-County, Texas	Texas	Attendant	Daughter
1930	Dorothy Long		Schuylkill, Pennsylvania	Pennsylvania	Mother'S Helper	Daughter
1940	Dorothy Long	27	Summit-County, Ohio	Ohio	—	Daughter
1940	Dorothy L. Long	30	Adams-County, Illinois	Illinois	—	Wife
1940	Dorothy Long	22	Columbia-County, Pennsylvania	Pennsylvania	Saleslady	Daughter
1930	Dorothy M. Long		Montgomery, Ohio	Ohio	Saleslady	Daughter
1940	Dorothy Long	25	Snyder-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Dorothy E. Long	24	Dauphin-County, Pennsylvania	Pennsylvania	—	Wife
1940	Dorothy Long	22	Juniata-County, Pennsylvania	Pennsylvania	Maid Work	Daughter
1940	Dorothy Long	40	Oglethorpe-County, Georgia	Georgia	—	Wife
1940	Dorothy Long	60	Clay-County, Illinois	Illinois	—	Wife
1900	Dorothy Long	31	Columbia, Pennsylvania	Pennsylvania	—	Wife
1940	Dorothy Long	19	Cuyahoga-County, Ohio	Ohio	General Housework	Daughter
1930	Dorothy M. Long		Washington, Kansas	Kansas	—	Daughter
1940	Dorothy J Long	12	Blount-County, Tennessee	Tennessee	—	Daughter
1940	Dorothy Mae Long	19	Alamance-County, North Carolina	North Carolina	Seamer	Daughter
1930	Dorothy Long		Kings, New York	New York	—	Son
1930	Dorothy Long		St Charles, Louisiana	Louisiana	—	Daughter
1940	Dorothy Long	12	Lycoming-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Dorothy Long	15	Montgomery-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Dorothy Long	10	Caswell-County, North Carolina	North Carolina	—	Daughter
1940	Dorothy Long	15	Northampton-County, Pennsylvania	Pennsylvania	House Work	Daughter
1920	Dorothy Long		Lee, Illinois	Illinois	—	Daughter
1940	Dorothy J. Long	13	Montgomery-County, Ohio	Ohio	—	Daughter
1930	Dorothy Long		Dade, Missouri	Missouri	—	Daughter

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About Dorothy Long US Census Records & Model Tree

We've indexed 3634 free, proprietary US Census records for Dorothy Long 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 Dorothy 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 3634 US Census records for Dorothy Long, from 1900 to 1950, across 49 states and DC.
: You'll see Dorothy'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 Dorothy Long'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 Dorothy Long 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 Dorothy Long 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.

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