AP
Alfred Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grant-County, Minnesota
Our Model Tree links this Alfred Peterson across the 1920, 1930 and 1940 US Censuses in Grant-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grant-County, Minnesota |
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Pelican Lake |
| 1935 Residence (County) | Grant |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Pelican Lake |
| Est. Birth Year | ~1887 |
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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| Alfred Peterson | Head | — | 53 | ~1887 |
| James Peterson | Son | — | 21 | ~1919 |
| Marcus Peterson | Son | — | 24 | ~1916 |
| Lillian Peterson | Spouse | — | 53 | ~1887 |
| Mildred Peterson | Daughter | — | 18 | ~1922 |
Census Appearances
1920
Grant, Minnesota
Head, age 33
Grant, Minnesota · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Grant, Minnesota
Head, age 43
Grant, Minnesota · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 27 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Grant-County, Minnesota
Head, age 53
Grant-County, Minnesota · implied b. ~1887 — 5 household members
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Pelican Lake |
| 1935 Residence (County) | Grant |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Alfred 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
Alfred Peterson
Head · 1940 · age 53 · b. ~1887 · 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 — Grant-County, Minnesota
Open full size
1940 US Federal Census — Grant-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01924-00265)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sybil Holmen | 11 | Daughter | — | Minnesota |
| 42 | Audrey Holmen | 4 | Daughter | — | Minnesota |
| 43 | Alfred Peterson THIS PERSON | 53 | Head | Farmer | Minnesota |
| 44 | Lillian Peterson | 53 | Wife | — | Minnesota |
| 45 | Marcus Peterson | 24 | Son | Helper | Minnesota |
| 46 | James E. Peterson | 21 | Son | Laborer | Minnesota |
| 47 | Mildred M. Peterson | 18 | Daughter | Farmer | Minnesota |
| 48 | Conrad Peterson | 60 | Head | Farmer | Minnesota |
| 49 | Lotta Peterson | 60 | Wife | — | Minnesota |
| 50 | Effie Peterson | 30 | Daughter | — | Minnesota |
| 51 | Paul J. Olson | 47 | Head | Farmer | South Dakota |
| 52 | Iloy R. Olson | 43 | Wife | — | South Dakota |
| 53 | Virgil L. Olson | 18 | Son | — | Minnesota |
| 54 | Milo L. Olson | 16 | Son | — | Minnesota |
| 55 | Verla L. Olson | 14 | Daughter | — | Minnesota |
| 56 | Elaine L. Olson | 8 | Daughter | — | Minnesota |
| 57 | David L. Nelson | 55 | Brother-in-law | — | Minnesota |
| 58 | John H. Nelson | 70 | Head | Farmer | Sweden |
| 59 | Gilbert M. Nelson | 37 | Son | Farmer | Minnesota |
| 60 | Marie Nelson | 58 | Wife | — | Minnesota |
| 61 | Selvin A. Mickelson | 34 | Head | Farmer | Minnesota |
| 62 | Torstein S. Mickelson | 71 | Father | — | Norway |
| 63 | Ida P. Mickelson | 36 | Sister | — | Minnesota |
| 64 | Jacob Bakgaard | 50 | Head | Farmer | Minnesota |
| 65 | Phillie H. Bakgaard | 43 | Wife | — | Minnesota |
| 66 | Arlene Bakgaard | 10 | Daughter | — | Minnesota |
| 67 | Orris Bakgaard | 8 | Son | — | Minnesota |
| 68 | Laverne Bakgaard | 8 | Son | — | Minnesota |
| 69 | Sylvia Bakgaard | 5 | Daughter | — | Minnesota |
| 70 | Jacob G. Bakgaard | 3 | Son | — | Minnesota |
| 71 | Arlene Bakgaard | 2 | Daughter | — | Minnesota |
| 72 | Morton E. Finberg | 50 | Head | Farmer | Minnesota |
| 73 | Julia E. Finberg | 47 | Wife | — | Minnesota |
| 74 | Marjorie Finberg | 21 | Daughter | — | Minnesota |
| 75 | Anna T. Finberg | 20 | Daughter | — | Minnesota |
| 76 | Elizabeth Finberg | 16 | Daughter | — | Minnesota |
| 77 | Martin T. Finberg | 14 | Son | — | Minnesota |
| 78 | Peter H. Finberg | 11 | Son | — | Minnesota |
| 79 | Katherine B. Finberg | 7 | Daughter | — | Minnesota |
| 80 | John E. Finberg | 3 | 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)