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Emma Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Koochiching-County, Minnesota
Our Model Tree links this Emma Larson across the 1930 and 1940 US Censuses in Koochiching-County, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Koochiching-County, Minnesota |
| Surname | Larson |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | International Falls |
| 1935 Residence (County) | Koochiching |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housewife |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Housewife |
| Township / Ward | International Falls |
| Est. Birth Year | ~1900 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Emma | Age | Birth yr |
|---|---|---|---|---|
| Ruby Larson | Daughter | — | 18 | ~1922 |
| Emma Larson | Spouse | — | 40 | ~1900 |
| Arthur Larson | Son | — | 16 | ~1924 |
| Arthur Larson | Head | — | 42 | ~1898 |
| Dorothy Larson | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Koochiching, Minnesota
Spouse, age 30
Koochiching, Minnesota · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 20 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Koochiching-County, Minnesota
Spouse, age 40
Koochiching-County, Minnesota · implied b. ~1900 — 5 household members
| Surname | Larson |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | International Falls |
| 1935 Residence (County) | Koochiching |
| Naturalization Status | Naturalized |
| Occupation | Housewife |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Emma Larson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Emma Larson
Spouse · 1940 · age 40 · b. ~1900 · Minnesota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Koochiching-County, Minnesota
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1940 US Federal Census — Koochiching-County, Minnesota
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01931-00613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Amos M. Hansen | 52 | Head | Embalmer | Wisconsin |
| 42 | Mildred E. Hansen | 38 | Wife | — | Wisconsin |
| 43 | Joseph F. Lloyd | 63 | Head | Salesman | Michigan |
| 44 | Margaret Lloyd | 49 | Wife | Housewife | Minnesota |
| 45 | Harriet Lloyd | 25 | Daughter | Society Editor | Canada-English |
| 46 | Dewey Huber | 43 | Lodger | Teacher | Wisconsin |
| 47 | Agnes Ballou | 46 | Lodger | Social Worker | Minnesota |
| 48 | Victor Davis | 54 | Head | Custom House Broker | Minnesota |
| 49 | Bessie Davis | 35 | Wife | — | Minnesota |
| 50 | Victor Jr. Davis | 17 | Son | — | Minnesota |
| 51 | Calvin Davis | 16 | Son | — | Minnesota |
| 52 | Betty Davis | 14 | Daughter | — | Minnesota |
| 53 | Sharon Davis | 10 | Daughter | — | Minnesota |
| 54 | Roland Davis | 3 | Son | — | Minnesota |
| 55 | Margaret Thorsby | 19 | Servant | Servant | Sweden |
| 56 | Harold M. Morse | 39 | Head | Manager | Minnesota |
| 57 | Lucille F. Morse | 31 | Wife | Housewife | Minnesota |
| 58 | Robert Morse | 5 | Son | — | Minnesota |
| 59 | Pamela Morse | 2 | Daughter | — | Minnesota |
| 60 | Esther Warmuth | 23 | Servant | Servant | Minnesota |
| 61 | Kenneth Speelman | 40 | Head | Resident Engineer | Minnesota |
| 62 | Grace A. Speelman | 39 | Wife | Housewife | Minnesota |
| 63 | Shirley Speelman | 5 | Daughter | — | Minnesota |
| 64 | B. Clarence Speelman | 4 | Son | — | Minnesota |
| 65 | Edna Grozins | 26 | Servant | Servant | Minnesota |
| 66 | Oliver E. Olson | 42 | Head | Assistant Cashier | Minnesota |
| 67 | Emily G. Olson | 33 | Wife | — | Minnesota |
| 68 | Marilyn Olson | 5 | Daughter | — | Minnesota |
| 69 | William Schlafe|Schlafel | 36 | Head | Chief Chemist | Minnesota |
| 70 | Cecelia Schlafe|Schlafel | 36 | Wife | Housewife | Minnesota |
| 71 | William C. Schlafe|Schlafel | 3 | Son | — | Minnesota |
| 72 | Carol Schlafe|Schlafel | 1 | Daughter | — | Minnesota |
| 73 | Agnes Phalen | 18 | Servant | Maid | England |
| 74 | Arthur Larson | 42 | Head | Machine Shop | Wisconsin |
| 75 | Emma Larson THIS PERSON | 40 | Wife | Housewife | Sweden |
| 76 | Ruby Larson | 18 | Daughter | Student | Minnesota |
| 77 | Arthur Larson | 16 | Son | Student | Minnesota |
| 78 | Dorothy Larson | 14 | Daughter | Student | Minnesota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)