MP
Mary Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carlton-County, Minnesota
Our Model Tree links this Mary Peterson across the 1920, 1930 and 1940 US Censuses in Carlton-County, Minnesota (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 3-person household.
Age 47
b. ~1893
Female
Spouse
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Carlton-County, Minnesota |
| Surname | Peterson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Autumba |
| 1935 Residence (County) | Carlton |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housework |
| Industry | At home |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | G 4 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Housework |
| Township / Ward | Autumba |
| Est. Birth Year | ~1893 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Peter Peterson | Head | — | 56 | ~1884 |
| Reinhold Peterson | Son | — | 22 | ~1918 |
| Mary Peterson | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Carlton, Minnesota
Spouse, age 27
Carlton, Minnesota · implied b. ~1893 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1913 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Year of Naturalization | 1915 |
| Birthplace (normalized) | finland |
1930
Carlton, Minnesota
Other, age 37
Carlton, Minnesota · implied b. ~1893 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Alien |
| Year of Immigration | 1903 |
| Age at First Marriage | 19 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Carlton-County, Minnesota
Spouse, age 47
Carlton-County, Minnesota · implied b. ~1893 — 3 household members
| Surname | Peterson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Autumba |
| 1935 Residence (County) | Carlton |
| Naturalization Status | Naturalized |
| Occupation | Housework |
| Industry | At home |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | G 4 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Mary Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Peterson
Spouse · 1940 · age 47 · b. ~1893 · 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 — Carlton-County, Minnesota
Open full size
1940 US Federal Census — Carlton-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01910-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ina Johnson | 33 | Wife | Teacher | Minnesota |
| 42 | Jane Johnson | 12 | Daughter | — | Minnesota |
| 43 | Shirley Johnson | 10 | Daughter | — | Minnesota |
| 44 | Robert Johnson | 2 | Son | — | Minnesota |
| 45 | Chas J Johnson | 42 | Head | Farmer | Minnesota |
| 46 | Anna Ester Johnson | 39 | Wife | Housework | Minnesota |
| 47 | Elma Irene Johnson | 19 | Daughter | Housework | Minnesota |
| 48 | Harold C Johnson | 17 | Son | Laborer | Minnesota |
| 49 | Howard W Johnson | 15 | Son | Laborer | Minnesota |
| 50 | Fred G Johnson | 13 | Son | — | Minnesota |
| 51 | Walter C Johnson | 10 | Son | — | Minnesota |
| 52 | Esther Johnson | 8 | Daughter | — | Minnesota |
| 53 | Mae Johnson | 6 | Daughter | — | Minnesota |
| 54 | Paul Johnson | 1 | Son | — | Minnesota |
| 55 | Alex Kukhela | 63 | Hired hand | Laborer | Finland |
| 56 | William Ed Johnson | 48 | Head | Farmer | Minnesota |
| 57 | William Maie | 48 | Head | Operator | Minnesota |
| 58 | Edward Maie | 28 | Son | Laborer | Minnesota |
| 59 | Raymond Maie | 18 | Son | Laborer | Minnesota |
| 60 | Carlton Maie | 25 | Son | Laborer | Minnesota |
| 61 | Alma Maie | 26 | Daughter in law | Housework | Minnesota |
| 62 | Jeanne Maie | 4 | Granddaughter | — | Minnesota |
| 63 | Judith Maie | 1 | Granddaughter | — | Minnesota |
| 64 | Alex Niemela | 61 | Head | Operator | Finland |
| 65 | Frank Niemela | 55 | Brother | Laborer | Finland |
| 66 | John Niemela | 52 | Brother | Laborer | Finland |
| 67 | Johanna Niemela | 89 | Mother | — | Finland |
| 68 | Matt Miller | 35 | Head | Laborer | Minnesota |
| 69 | Effie Miller | 27 | Wife | Housework | Minnesota |
| 70 | Glen Miller | 5 | Son | — | Minnesota |
| 71 | Kenneth Miller | 4 | Son | — | Minnesota |
| 72 | Lloyd W Miller | 3 | Son | — | Minnesota |
| 73 | Melvin G Miller | 3 | Son | — | Minnesota |
| 74 | Peter Peterson | 56 | Head | Farmer | Finland |
| 75 | Mary Peterson THIS PERSON | 47 | Wife | Housework | Finland |
| 76 | Reinhold Peterson | 22 | Son | Clerk | Minnesota |
| 77 | John E Seinimaki | 60 | Head | Farmer | Finland |
| 78 | Ida J Seinimaki | 41 | Wife | Housework | Minnesota |
| 79 | George A Seinimaki | 17 | Son | Laborer | Minnesota |
| 80 | Ernest Seinimaki | 21 | Son | Laborer | Minnesota |
Related Census Records
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)