How many Florence Sullivan census records do you have?

We have 3365 US Census records for Florence Sullivan, from 1900 to 1950, across 48 states and DC.

What's in a Florence Sullivan census record?

You'll see Florence'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 Florence Sullivan'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 Florence Sullivan census records free?

Yes. All Florence Sullivan 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 Florence Sullivan?

We have Florence Sullivan records from the 1900 through 1950 US Federal Census, across 48 states and DC. Use the year and state filters to narrow your results.

How do I find Florence Sullivan 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 Florence Sullivan?

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.

Florence Sullivan — US Census Records & Model Tree

We found 3365 free census records for Florence Sullivan across 6 census years (1900–1950), in 48 states and DC and 589 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Florence Sullivan Census Records by State & County

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Showing of 3365 records for Florence Sullivan US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Florence Sullivan	34	New-York-County, New York	New York	Typist Clerk	Daughter
1930	Florence Sullivan		Kings, New York	New York	None	Wife
1940	Florence G. Sullivan	25	Essex-County, Massachusetts	Massachusetts	Teacher	Daughter
1920	Florence Sullivan		Hamilton, Ohio	Ohio	—	Daughter
1940	Florence M. Sullivan	21	Suffolk-County, Massachusetts	Massachusetts	Typist	Daughter
1940	Florence Sullivan	39	Middlesex-County, Massachusetts	Massachusetts	—	Daughter
1930	Florence Sullivan		Providence, Rhode Island	Rhode Island	Comptometer	Daughter
1930	Florence Sullivan		Union, New Jersey	New Jersey	None	Daughter
1930	Florence M. Sullivan		Middlesex, Massachusetts	Massachusetts	Clerk	Daughter
1920	Florence Sullivan		Erie, New York	New York	Stenographer	Daughter
1940	Florence Sullivan	22	Middlesex-County, Massachusetts	Rhode Island	Sales-Girl	Daughter
1930	Florence Sullivan		Westmoreland, Pennsylvania	Pennsylvania	—	Wife
1940	Florence Sullivan	50	Middlesex-County, Massachusetts	Newfoundland	—	Wife
1940	Florence Sullivan	61	Stafford-County, Virginia	Virginia	—	Wife
1940	Florence Sullivan	27	New-York-County, New York	New York	—	Head
1930	Florence Sullivan		Saline, Kansas	Kansas	School Teacher	Daughter
1930	Florence Sullivan		Pope, Arkansas	Oklahoma	—	Wife
1910	Florence Sullivan		Weld, Colorado	Ireland	Farmer	Head
1920	Florence Sullivan		New York, New York	New York	Student	Daughter
1940	Florence Sullivan	15	Nassau-County, New York	Massachusetts	—	Daughter
1930	Florence M Sullivan		Washington, Minnesota	Minnesota	—	Daughter
1940	Florence Sullivan	16	Allegheny-County, Pennsylvania	Pennsylvania	—	Daughter
1940	Florence Sullivan	18	Sedgwick-County, Kansas	Kansas	—	Daughter
1910	Florence Sullivan		Kings, New York	New York	—	Daughter
1930	Florence Sullivan		Nassau, New York	New York	—	Daughter
1930	Florence Sullivan		New York, New York	New York	Baker	Head
1940	Florence Sullivan	36	Delaware-County, Pennsylvania	Delaware	—	Wife
1920	Florence Sullivan		Kings, New York	New York	Bookbinding	Daughter
1940	Florence Sullivan	62	Hamilton-County, Tennessee	Tennessee	—	Wife
1920	Florence Sullivan		Kings, New York	New York	Calendar Packer	Daughter

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About Florence Sullivan US Census Records & Model Tree

We've indexed 3365 free, proprietary US Census records for Florence Sullivan across 1900–1950, covering 48 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, 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 Florence 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 3365 US Census records for Florence Sullivan, from 1900 to 1950, across 48 states and DC.
: You'll see Florence'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 Florence Sullivan'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 Florence Sullivan 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 Florence Sullivan records from the 1900 through 1950 US Federal Census, across 48 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.

Other Sullivan US Census Records

Agnes Sullivan Alice Sullivan Anna Sullivan Annie Sullivan Arthur Sullivan Catherine Sullivan Charles Sullivan Cornelius Sullivan Daniel Sullivan Dennis Sullivan Dorothy Sullivan Edward Sullivan Elizabeth Sullivan Ellen Sullivan Eugene Sullivan Francis Sullivan Frank Sullivan George Sullivan Helen Sullivan James Sullivan Jeremiah Sullivan John Sullivan Joseph Sullivan Julia Sullivan Katherine Sullivan Margaret Sullivan Mary Sullivan Michael Sullivan Nellie Sullivan Patrick Sullivan Richard Sullivan Robert Sullivan Ruth Sullivan Sarah Sullivan Thomas Sullivan Timothy Sullivan William Sullivan

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