JP
John Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Minnesota
Our Model Tree links this John Peterson across the 1910, 1920, 1930 and 1940 US Censuses in St.-Louis-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 6-person household.
Age 74
b. ~1866
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Minnesota |
| Surname | Peterson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Cotton twp |
| 1935 Residence (County) | St. Louis |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 50 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Farmer |
| Township / Ward | Cotton Twp |
| Est. Birth Year | ~1866 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elanor Peterson | Daughter | — | 36 | ~1904 |
| John Peterson | Head | — | 74 | ~1866 |
| Head Dalmaro | Other | — | — | |
| Harry Dalmaro | Son | — | 20 | ~1920 |
| Hansina Peterson | Spouse | — | 67 | ~1873 |
| Borghild Dalmaro | Spouse | — | 49 | ~1891 |
Census Appearances
1910
St Louis, …
Head, age 43
St Louis, Minnesota · implied b. ~1867 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Norway |
| Years Married | 15 |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1920
St Louis, …
Head, age 53
St Louis, Minnesota · implied b. ~1867 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Car Repairer |
| Industry | Traction Co. Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Norway |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | norway |
1930
St Louis, …
Head, age 66
St Louis, Minnesota · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1871 |
| Age at First Marriage | 30 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Dairy |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Veteran | No |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
St.-Louis-County, Minnesota
Head, age 74
St.-Louis-County, Minnesota · implied b. ~1866 — 6 household members
| Surname | Peterson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Cotton twp |
| 1935 Residence (County) | St. Louis |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 50 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 John Peterson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Peterson
Head · 1940 · age 74 · b. ~1866 · 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 — St.-Louis-County, Minnesota
Open full size
1940 US Federal Census — St.-Louis-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01955-00617)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Johanson | 31 | Head | Labor | Minnesota |
| 2 | Vianna Johanson | 24 | Wife | — | Minnesota |
| 3 | Joanne Johanson | 3 | Daughter | — | Minnesota |
| 4 | Marge Peterson | 39 | Head | — | Iowa |
| 5 | Ray Peterson | 18 | Son | — | Minnesota |
| 6 | Earl Peterson | 17 | Son | Labor | Minnesota |
| 7 | Jean Peterson | 16 | Son | — | Minnesota |
| 8 | Ralph Peterson | 8 | Son | — | Minnesota |
| 9 | Dortay Hovis | 18 | Sister | — | Minnesota |
| 10 | Frank Kozeny | 43 | Head | Electrician | Mass |
| 11 | Clara Kozeny | 30 | Wife | — | Minnesota |
| 12 | Mary Kozeny | 13 | Daughter | — | Minnesota |
| 13 | Martin Peterson | 43 | Head | Labor | Norway |
| 14 | Amelia Peterson | 31 | Wife | — | Minnesota |
| 15 | Marvin Peterson | 14 | Son | — | Minnesota |
| 16 | Palmer Peterson | 15 | Son | — | Minnesota |
| 17 | Dortay Peterson | 11 | Daughter | — | Minnesota |
| 18 | Audrey Peterson | 10 | Daughter | — | Minnesota |
| 19 | Lorraine Peterson | 7 | Daughter | — | Minnesota |
| 20 | Henry Peterson | 33 | Brother | Labor | Minnesota |
| 21 | John Peterson THIS PERSON | 74 | Head | Farmer | Norway |
| 22 | Hansina Peterson | 67 | Wife | — | Norway |
| 23 | Elanor Peterson | 36 | Daughter | — | Minnesota |
| 24 | Head Dalmaro | None | M | Co Schools | — |
| 25 | Borghild Dalmaro | 49 | Wife | — | Norway |
| 26 | Harry Dalmaro | 20 | Son | Labor | Minnesota |
| 27 | Edward Soderlund | 43 | Head | Piecemaker | Minnesota |
| 28 | William Soderlund | 78 | Head | — | Sweden |
| 29 | Breata Soderlund | 75 | Wife | — | Sweden |
| 30 | Ernest Peterson | 42 | Head | Farmer | Minnesota |
| 31 | Amy Peterson | 32 | Wife | — | Minnesota |
| 32 | Norman Peterson | 2 | Son | — | Minnesota |
| 33 | Ludvig Peterson | 50 | Head | Farmer | Norway |
| 34 | Idoris Peterson | 51 | Wife | — | Norway |
| 35 | Elan Larson | 79 | Mother | — | Norway |
| 36 | Walter Soderlund | 44 | Head | Bus Driver | Minnesota |
| 37 | Florence Soderlund | 34 | Wife | — | Minnesota |
| 38 | Gloria Soderlund | 12 | Daughter | — | Minnesota |
| 39 | David Soderlund | 10 | Son | — | Minnesota |
| 40 | George Soderlund | 8 | Son | — | 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)