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Mary Lund — US Census Records & Model Tree

We found 3772 free census records for Mary Lund across 6 census years (1900–1950), in 49 states, DC, and 1 territory and 781 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Lund Census Records by State & County

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Showing of 3772 records for Mary Lund US Census, ranked by Model Tree richness
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Year Name Age Location Birthplace Occupation Relation
1920 Mary Lund St Louis, Minnesota Norway None Wife
1930 Mary Lund St Louis, Minnesota Norway — Wife
1910 Mary Lund Hennepin, Minnesota Norway None Wife
1920 Mary Lund Providence, Rhode Island England — Head
1910 Mary Lund San Francisco, California Denmark — Wife
1910 Mary Lund Kings, New York Sweden — Wife
1930 Mary Lund Los Angeles, California Sweden — Wife
1910 Mary Anna Lund Alameda, California Denmark — Wife
1910 Mary Lund Sanpete, Utah Utah — Wife
1910 Mary Lund Alameda, California California — Daughter
1930 Mary Lund Cook, Illinois Norway — Wife
1940 Mary J. Lund 11 Washington-County, Maine Maine — Daughter
1930 Mary Lund Cook, Illinois Ireland — Head
1940 Mary Lund 48 Eau-Claire-County, Wisconsin Wisconsin — Wife
1930 Mary Lund Ramsey, Minnesota Minnesota — Daughter
1910 Mary Lund Cook, Illinois Sweden — Head
1910 Mary Lund San Francisco, California Denmark — Wife
1930 Mary Lund New York, New York New York — Daughter
1940 Mary O Lund 40 Harrison-County, Mississippi Mississippi — Wife
1930 Mary S. Lund Providence, Rhode Island Sweden — Daughter
1900 Mary Lund 40 Hennepin, Minnesota Sweden — Wife
1930 Mary Lund San Francisco, California Germany — Wife
1930 Mary E. Lund Kings, New York New York Operator Daughter
1930 Mary A. Lund San Francisco, California Portugal — Wife
1910 Mary Lund New York, New York Norway — Wife
1910 Mary Lund Wabaunsee, Kansas Ohio — Wife
1910 Mary Lund Washington, Nebraska Nebraska House Maid Daughter
1920 Mary B. Lund Salt Lake, Utah Utah None Daughter
1930 Mary Lund Cook, Illinois Illinois — Daughter
1940 Mary E. Lund 18 Queens-County, New York New York — Daughter

About Mary Lund US Census Records & Model Tree

We've indexed 3772 free, proprietary US Census records for Mary Lund across 1900–1950, covering 49 states, DC, and 1 territory: 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, Puerto Rico, 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 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 3772 US Census records for Mary Lund, from 1900 to 1950, across 49 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 Lund'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 Lund 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 Lund records from the 1900 through 1950 US Federal Census, across 49 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.
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