JP
John Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Aitkin-County, Minnesota
Our Model Tree links this John Peterson across the 1920, 1930 and 1940 US Censuses in Aitkin-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 6-person household.
Age 48
b. ~1892
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Aitkin-County, Minnesota |
| Surname | Peterson |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Unorg. 45-24 |
| 1935 Residence (County) | Aitkin |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Unorg 4524 |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Mary Peterson | Daughter | — | 15 | ~1925 |
| Ethel Peterson | Daughter | — | 17 | ~1923 |
| John Peterson | Head | — | 48 | ~1892 |
| Christina Fagerstrom | Other | — | 80 | ~1860 |
| Robert Peterson | Son | — | 13 | ~1927 |
| Emma Peterson | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Aitkin, Minnesota
Head, age 28
Aitkin, Minnesota · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | New Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Aitkin, Minnesota
Head, age 38
Aitkin, Minnesota · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 21 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Aitkin-County, Minnesota
Head, age 48
Aitkin-County, Minnesota · implied b. ~1892 — 6 household members
| Surname | Peterson |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Unorg. 45-24 |
| 1935 Residence (County) | Aitkin |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Peterson
Head · 1940 · age 48 · b. ~1892 · 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 — Aitkin-County, Minnesota
Open full size
1940 US Federal Census — Aitkin-County, Minnesota
Page Contents
21 people indexed on this census page (nara:1940:m-t0627-01903-00606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carl Elo | 53 | — | Lumberjack | Finland |
| 42 | Eino Lunden | 22 | — | Lumberjack | Minnesota |
| 43 | Sam Salo | 55 | — | Lumberjack | Finland |
| 44 | Ernest Kallio | 38 | — | Lumberjack | Minnesota |
| 45 | Ailie Kallio | 35 | — | Camp Cook | Minnesota |
| 46 | Eino Bottila | 31 | — | Lumberjack | Minnesota |
| 47 | John W. Peterson THIS PERSON | 48 | Head | Farmer | Minnesota |
| 48 | Emma C. Peterson | 43 | Wife | — | Minnesota |
| 49 | Ethel E. Peterson | 17 | Daughter | — | Minnesota |
| 50 | Mary M. Peterson | 15 | Daughter | — | Minnesota |
| 51 | Robert Peterson | 13 | Son | — | Minnesota |
| 52 | Christina Fagerstrom | 80 | Boarder | — | Sweden |
| 53 | William R. Matlack | 60 | Head | Farmer | Illinois |
| 54 | Alma Matlack | 61 | Wife | — | Minnesota |
| 55 | Meta Quaas | 71 | Head | — | Minnesota |
| 56 | Genevieve Drouel | 42 | Daughter | Teacher | Minnesota |
| 57 | Charles A. Merchant | 56 | Head | Farmer | Minnesota |
| 58 | Theresa Merchant | 46 | Wife | — | Minnesota |
| 59 | Milton Merchant | 16 | Son | — | Minnesota |
| 60 | Myron Merchant | 7 | Son | — | Minnesota |
| 61 | Charles Jr. Merchant | 3 | Son | — | 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)