How many Clara Nelson census records do you have?

We have 5312 US Census records for Clara Nelson, from 1900 to 1950, across 49 states and DC.

What's in a Clara Nelson census record?

You'll see Clara'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 Clara Nelson'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 Clara Nelson census records free?

Yes. All Clara Nelson 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 Clara Nelson?

We have Clara Nelson 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 Clara Nelson 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 Clara Nelson?

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.

Clara Nelson — US Census Records & Model Tree

We found 5312 free census records for Clara Nelson across 6 census years (1900–1950), in 49 states and DC and 1254 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Clara Nelson Census Records by State & County

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Showing of 5312 records for Clara Nelson US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Clara L. Nelson	21	Monroe-County, New York	New York	New Worker	Daughter
1930	Clara Nelson		Henry, Iowa	Iowa	None	Daughter
1920	Clara Nelson		Cavalier, North Dakota	North Dakota	—	Daughter
1920	Clara Nelson		Montgomery, Maryland	Maryland	Servant	Daughter
1940	Clara Nelson	62	Mcpherson-County, Kansas	Kansas	—	Wife
1940	Clara Nelson	46	Multnomah-County, Oregon	Wisconsin	Grammar Teacher	Daughter
1940	Clara Nelson	68	Allegheny-County, Pennsylvania	Sweden	—	Wife
1930	Clara Nelson		St Louis, Minnesota	Sweden	—	Wife
1940	Clara B. Nelson	42	Warren-County, Pennsylvania	Pennsylvania	—	Wife
1940	Clara A. Nelson	55	Pierce-County, North Dakota	Minnesota	—	Wife
1940	Clara Nelson	57	Isanti-County, Minnesota	Minnesota	—	Wife
1940	Clara A. Nelson	41	Cass-County, Iowa	Iowa	—	Wife
1940	Clara Nelson	54	Hennepin-County, Minnesota	Wisconsin	—	Wife
1940	Clara C. Nelson	48	Clay-County, Minnesota	North Dakota	—	Wife
1940	Clara Nelson	57	Dane-County, Wisconsin	Norway	—	Wife
1940	Clara Nelson	57	Catahoula-County, Louisiana	Louisiana	Cook	Wife
1940	Clara Nelson	78	Cook-County, Illinois	Sweden	—	Head
1940	Clara Nelson	50	Jefferson-County, Iowa	Iowa	Housekeeper	Wife
1930	Clara J. Nelson		Clay, Minnesota	Minnesota	—	Daughter
1940	Clara May Nelson	13	Panola-County, Mississippi	Mississippi	—	Daughter
1930	Clara Nelson		Gloucester, New Jersey	New Jersey	—	Daughter
1910	Clara Nelson		Nelson, North Dakota	Washington	—	Daughter
1940	Clara M Nelson	64	Lincoln-County, Nebraska	Iowa	—	Wife
1910	Clara Nelson		Champaign, Illinois	Illinois	—	Daughter
1910	Clara C Nelson		Fremont, Idaho	Utah	—	Wife
1900	Clara Nelson	45	Ramsey, Minnesota	Norway	Dressmaker	Wife
1910	Clara H Nelson		Lincoln, Kansas	Kansas	—	Daughter
1910	Clara Nelson		Eau Claire, Wisconsin	Wisconsin	—	Daughter
1940	Clara V. Nelson	43	Carbon-County, Montana	Montana	House Wife	Wife
1940	Clara Nelson	39	Mountrail-County, North Dakota	Minnesota	—	Wife

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About Clara Nelson US Census Records & Model Tree

We've indexed 5312 free, proprietary US Census records for Clara Nelson across 1900–1950, covering 49 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, 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 Clara 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 5312 US Census records for Clara Nelson, from 1900 to 1950, across 49 states and DC.
: You'll see Clara'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 Clara Nelson'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 Clara Nelson 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 Clara Nelson 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.

Other Nelson US Census Records

Agnes Nelson Albert Nelson Alfred Nelson Alice Nelson Alma Nelson Andrew Nelson Anna Nelson Annie Nelson Arthur Nelson Bertha Nelson Betty Nelson Carl Nelson Carrie Nelson Charles Nelson Clarence Nelson David Nelson Donald Nelson Doris Nelson Dorothy Nelson Earl Nelson Edith Nelson Edna Nelson Edward Nelson Edwin Nelson Elizabeth Nelson Ella Nelson Ellen Nelson Elmer Nelson Emma Nelson Ernest Nelson Esther Nelson Ethel Nelson Evelyn Nelson Florence Nelson Frank Nelson Fred Nelson George Nelson Gertrude Nelson Gladys Nelson Grace Nelson Hans Nelson Harold Nelson Harry Nelson Hazel Nelson Helen Nelson Henry Nelson Herbert Nelson Hilda Nelson Howard Nelson Ida Nelson Irene Nelson James Nelson Jennie Nelson Jessie Nelson John Nelson Joseph Nelson Julia Nelson Kenneth Nelson Laura Nelson Lillian Nelson Lillie Nelson Lois Nelson Louis Nelson Mabel Nelson Margaret Nelson Marie Nelson Martha Nelson Martin Nelson Mary Nelson Mildred Nelson Minnie Nelson Myrtle Nelson Nellie Nelson Nels Nelson Oscar Nelson Paul Nelson Peter Nelson Ralph Nelson Raymond Nelson Richard Nelson Robert Nelson Roy Nelson Ruth Nelson Sarah Nelson Thomas Nelson Walter Nelson William Nelson Willie Nelson

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