WP
Walter Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-County, Minnesota
Our Model Tree links this Walter Peterson across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Minnesota (XGBoost, ~Confirmed), with identified parents Olaf & Signe — first a son (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Minnesota |
| Surname | Peterson |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth City |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Occupation | laborer |
| Industry | Steam R.R. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | Duluth City |
| Est. Birth Year | ~1908 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Walter Peterson | Son | — | 32 | ~1908 |
| Signe Peterson | Spouse | — | 71 | ~1869 |
| Olaf Peterson | Head | — | 72 | ~1868 |
Census Appearances
1920
St Louis, …
Son, age 12
St Louis, Minnesota · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Walter A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
St Louis, …
Son, age 22
St Louis, Minnesota · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Walter A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farm labourer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
St.-Louis-County, Minnesota
Son, age 32
St.-Louis-County, Minnesota · implied b. ~1908 — 3 household members
| Surname | Peterson |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth City |
| 1935 Residence (County) | St. Louis |
| Occupation | laborer |
| Industry | Steam R.R. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 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 Walter Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Olaf Peterson (~0.92 confidence) and mother Signe Peterson (~0.92 confidence) and mother Anna Peterson (~0.92 confidence) and father Frank Peterson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Olaf Peterson
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Signe Peterson
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Anna Peterson
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
Frank Peterson
b. ~1877
Source father
● Household
· direct · ~0.92
This person
Anchor record
Walter Peterson
Son · 1940 · age 32 · b. ~1908 · 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 — St.-Louis-County, Minnesota
Open full size
1940 US Federal Census — St.-Louis-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01972-00249)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | George Burleigh | 52 | Head | Mailman | Rhode Island |
| 3 | Clara Burleigh | 49 | Wife | — | Rhode Island |
| 4 | George Jr Burleigh | 19 | Son | New Worker | Minnesota |
| 5 | Lois Burleigh | 17 | Daughter | — | Minnesota |
| 6 | Ruth Burleigh | 13 | Daughter | — | Minnesota |
| 7 | William Marrigall | 70 | Head | — | Vermont |
| 8 | John E. Hey | 38 | Head | Chemist | Germany |
| 9 | Anna Hey | 34 | Wife | — | Germany |
| 10 | Henry Hey | 14 | Son | — | Minnesota |
| 11 | Frances Hey | 13 | Daughter | — | Minnesota |
| 12 | Elizabeth Hey | 13 | Daughter | — | Minnesota |
| 13 | Edward Purcell | 37 | Head | Rock Foreman | Minnesota |
| 14 | Ione Purcell | 34 | Wife | — | Minnesota |
| 15 | Frances Purcell | 15 | Daughter | — | Minnesota |
| 16 | Robert Purcell | 14 | Son | — | Minnesota |
| 17 | William Purcell | 8 | Son | — | Minnesota |
| 18 | Patrick Purcell | 2 | Son | — | Minnesota |
| 19 | Olaf Peterson | 72 | Head | — | Sweden |
| 20 | Signe Peterson | 71 | Wife | — | Norway |
| 21 | Walter Peterson THIS PERSON | 32 | Son | Laborer | Minnesota |
| 22 | Charles M Miller | 63 | Head | Truck Driver | Minnesota |
| 23 | Agnes Miller | 55 | Wife | — | Minnesota |
| 24 | Francis Miller | 36 | Son | Shipping Clerk | Minnesota |
| 25 | Catherine Miller | 33 | Daughter | Telephone Operator | Minnesota |
| 26 | Raymond Miller | 26 | Son | Packer | Minnesota |
| 27 | Edward J Bonning | 49 | Head | Settlement Clerk | Minnesota |
| 28 | Elizabeth Bonning | 41 | Wife | — | Wisconsin |
| 29 | Grant Bonning | 23 | Son | Private Chauffeur | Minnesota |
| 30 | Roger Bonning | 22 | Son | Clerk | Minnesota |
| 31 | Mitchell Bonning | 19 | Son | — | Minnesota |
| 32 | Allen Bonning | 14 | Son | — | Minnesota |
| 33 | Claude B Stanley | 40 | Head | Repairman | Washington |
| 34 | Francis Stanley | 37 | Wife | — | Colorado |
| 35 | Marvin Stanley | 15 | Son | — | Colorado |
| 36 | Robert Stanley | 13 | Son | — | Colorado |
| 37 | Jerry Stanley | 5 | Son | — | Minnesota |
| 38 | Donald Stanley | 2 | Son | — | South Dakota |
| 39 | Fred Berlin | 28 | Lodger | Fireman Helper | Illinois |
| 40 | Eric L Gellstrom | 49 | Head | Laborer | Norway |
Pedigree Summary
Walter
Gen 1 · 4 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)