PP
Peter Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Otter-Tail-County, Minnesota
Our Model Tree links this Peter Peterson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Otter-Tail-County, Minnesota (XGBoost, ~Confirmed), with identified parents Ole & Ragnhild — first a head (b.~1875), then head of a 7-person household.
Age 65
b. ~1875
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Otter-Tail-County, Minnesota |
| Surname | Peterson |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Elmo Township |
| 1935 Residence (County) | Otter Tail |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| 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 | Elmo Township |
| Est. Birth Year | ~1875 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Peter | Age | Birth yr |
|---|---|---|---|---|
| Orpha Peterson | Daughter | — | 15 | ~1925 |
| Bessie Odegard | Daughter | — | 42 | ~1898 |
| Peter Peterson | Head | — | 65 | ~1875 |
| Lester Peterson | Son | — | 20 | ~1920 |
| Deven Peterson | Son | — | 11 | ~1929 |
| Chester Peterson | Son | — | 31 | ~1909 |
| Ellen Peterson | Spouse | — | 57 | ~1883 |
Census Appearances
1900
Otter Tail, …
Son, age 24
Otter Tail, Minnesota · implied b. ~1876 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Peter A |
| Relationship to Head | Son |
| Sex | m |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Birth Month | May |
| Birth Year | 1876 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farm laborer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1910
Otter Tail, …
Son, age 35
Otter Tail, Minnesota · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Peter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Years Married | 5 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farm Laborer |
| Industry | Home Farm |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Otter Tail, …
Head, age 45
Otter Tail, Minnesota · implied b. ~1875 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Gen. Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Otter Tail, …
Head, age 55
Otter Tail, Minnesota · implied b. ~1875 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 31 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Otter-Tail-County, Minnesota
Head, age 65
Otter-Tail-County, Minnesota · implied b. ~1875 — 7 household members
| Surname | Peterson |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Elmo Township |
| 1935 Residence (County) | Otter Tail |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| 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 Peter Peterson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ole Peterson (~0.92 confidence) and mother Ragnhild Peterson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ole Peterson
b. ~1849
Source father
● Household
· direct · ~0.92
Mother
Ragnhild Peterson
b. ~1852
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Peter Peterson
Head · 1940 · age 65 · b. ~1875 · Minnesota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Otter-Tail-County, Minnesota
Open full size
1940 US Federal Census — Otter-Tail-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01945-00430)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Raymond Harrison | 31 | Head | Farmer | Minnesota |
| 42 | Zella M Harrison | 31 | Wife | — | Minnesota |
| 43 | Violet M Harrison | 3 | Daughter | — | Minnesota |
| 44 | Catherine E Harrison | 1 | Daughter | — | Minnesota |
| 45 | Altha W Nelson | 73 | Mother-in-law | — | Minnesota |
| 46 | John Finch | 44 | Head | Farmer | Iowa |
| 47 | Bernice Finch | 38 | Wife | — | Minnesota |
| 48 | Eva E Finch | 18 | Daughter | Maid | Minnesota |
| 49 | Elanor M Finch | 12 | Daughter | — | Minnesota |
| 50 | Elaine D Finch | 6 | Daughter | — | Minnesota |
| 51 | Alfred Mann | 26 | Hired man | Farm Helper | Minnesota |
| 52 | Arthur Peterson | 47 | Head | Farmer | Minnesota |
| 53 | Hilma G Peterson | 39 | Wife | — | Minnesota |
| 54 | Vernon R Peterson | 16 | Son | — | Minnesota |
| 55 | Lois G Peterson | 10 | Daughter | — | Minnesota |
| 56 | James A Holt | 46 | Head | Repair | Minnesota |
| 57 | Minnie C Holt | 37 | Wife | — | Minnesota |
| 58 | Norman T Holt | 15 | Son | — | Minnesota |
| 59 | Elaine L Holt | 8 | Daughter | — | Minnesota |
| 60 | John Lindrud | 55 | Head | Manager | Minnesota |
| 61 | Elma Lindrud | 62 | Wife | — | Norway |
| 62 | Marvin A Hagen | 27 | Head | Laborer | Minnesota |
| 63 | Eva S Hagen | 17 | Wife | — | Minnesota |
| 64 | Jacob Johnson | 72 | Head | — | Norway |
| 65 | Walter Johnson | 65 | Brother | — | Norway |
| 66 | Carl N Mellow | 56 | Head | Farmer | S Dakota |
| 67 | Annetta M Mellow | 50 | Wife | — | Norway |
| 68 | Laura B Mellow | 18 | Daughter | — | Minnesota |
| 69 | Melvin Mellow | 15 | Son | Helper | Minnesota |
| 70 | Anna Danielson | 75 | Head | — | Sweden |
| 71 | Harry Danielson | 40 | Son | Farmer | Minnesota |
| 72 | Julia M Smith | 75 | Head | — | Norway |
| 73 | Peter Peterson THIS PERSON | 65 | Head | Farmer | Minnesota |
| 74 | Ellen Peterson | 57 | Wife | — | Minnesota |
| 75 | Chester M Peterson | 31 | Son | Farmer | Minnesota |
| 76 | Lester M Peterson | 20 | Son | Laborer | Minnesota |
| 77 | Orpha M Peterson | 15 | Daughter | — | Minnesota |
| 78 | Deven C Peterson | 11 | Son | — | Minnesota |
| 79 | Bessie S Odegard | 42 | Daughter | — | Minnesota |
| 80 | Raleigh Bennett | 57 | Head | Farmer | Kansas |
Pedigree Summary
Peter
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)