WP
Walter Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Douglas-County, Minnesota
Our Model Tree links this Walter Peterson across the 1920, 1930 and 1940 US Censuses in Douglas-County, Minnesota (XGBoost, ~Confirmed), with identified parents Theodore & Theodore — first a head (b.~1911), then head of a 7-person household.
Age 29
b. ~1911
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Minnesota |
| Surname | Peterson |
| Given Name | Walter L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Douglas |
| Additional Details | |
| Occupation | Ditch digging |
| Industry | Sewer ditches |
| Class of Worker | W |
| Hours Worked | 58 |
| Income (1939) | 474 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Ditch Digging |
| Township / Ward | Osakis Township |
| Est. Birth Year | ~1911 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Edna Peterson | Spouse | — | 27 | ~1913 |
| Walter Peterson | Head | — | 29 | ~1911 |
| Wanda Peterson | Daughter | — | 2 | ~1938 |
| Jerome Peterson | Son | — | 4 | ~1936 |
| Waldor Peterson | Son | — | 6 | ~1934 |
| Darwin Peterson | Son | — | 11 | ~1929 |
| Lawrence Peterson | Son | — | 9 | ~1931 |
Census Appearances
1920
Douglas, Minnesota
Son, age 9
Douglas, Minnesota · implied b. ~1911 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Douglas, Minnesota
Son, age 19
Douglas, Minnesota · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Walter S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Douglas-County, Minnesota
Head, age 29
Douglas-County, Minnesota · implied b. ~1911 — 7 household members
| Surname | Peterson |
| Given Name | Walter L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Douglas |
| Occupation | Ditch digging |
| Industry | Sewer ditches |
| Class of Worker | W |
| Hours Worked | 58 |
| Income (1939) | 474 |
| Highest Grade | 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 Walter Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Theodore Peterson (~0.92 confidence) and father Theodore Peterson (~0.92 confidence) and mother Beula Peterson (~0.92 confidence) and mother Beulah Peterson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Theodore Peterson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Theodore Peterson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Beula Peterson
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Beulah Peterson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Peterson
Head · 1940 · age 29 · b. ~1911 · 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 — Douglas-County, Minnesota
Open full size
1940 US Federal Census — Douglas-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01919-00910)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ena E Clark | 29 | Wife | — | Iowa |
| 2 | Elaine Clark | 8 | Daughter | — | Minnesota |
| 3 | June Clark | 6 | Daughter | — | Minnesota |
| 4 | Laura Cordes | 37 | Boarder | School Teacher | Minnesota |
| 5 | Harold A Hendrickson | 34 | Head | Farm Operator | Minnesota |
| 6 | Cora L Hendrickson | 27 | Wife | — | Minnesota |
| 7 | Jackie J Hendrickson | 8 | Son | — | Minnesota |
| 8 | Marlin L Hendrickson | 5 | Daughter | — | Minnesota |
| 9 | Father Hans | 63 | Father | — | Denmark |
| 10 | Walter L Peterson THIS PERSON | 29 | Head | Ditch Digging | Minnesota |
| 11 | Edna K Peterson | 27 | Wife | — | Minnesota |
| 12 | Darwin R Peterson | 11 | Son | — | Minnesota |
| 13 | Lawrence L Peterson | 9 | Son | — | Minnesota |
| 14 | Waldor E Peterson | 6 | Son | — | Minnesota |
| 15 | Jerome D Peterson | 4 | Son | — | Minnesota |
| 16 | Wanda J Peterson | 2 | Daughter | — | Minnesota |
| 17 | Thorsten P Peterson | 69 | Head | Farm Operator | Minnesota |
| 18 | Clarence D Realy | 54 | Head | Farm Operator | Kansas |
| 19 | Etha J Realy | 45 | Wife | — | South Dakota |
| 20 | Melvin R Realy | 18 | Son | New Worker | Minnesota |
| 21 | Lela M Realy | 14 | Daughter | — | Minnesota |
| 22 | Etta J Swart | 41 | Head | Farm Operator | Minnesota |
| 23 | Robert L Swart | 19 | Son | New Worker | Minnesota |
| 24 | Clifford L Swart | 18 | Son | Labor | Minnesota |
| 25 | Mable Masteller | 50 | Sister | — | Minnesota |
| 26 | Claude D Hawkins | 48 | Head | Farm Operator | South Dakota |
| 27 | Ruth A Hawkins | 40 | Wife | — | Nebraska |
| 28 | Donald D Hawkins | 21 | Son | Labor Building | Montana |
| 29 | Mark W Hawkins | 20 | Son | Labor Building | Minnesota |
| 30 | Dorothy A Hawkins | 18 | Daughter | — | Minnesota |
| 31 | Gladys E Hawkins | 16 | Daughter | — | Minnesota |
| 32 | Richard B Hawkins | 14 | Son | — | Minnesota |
| 33 | Raylee D Hawkins | 12 | Son | — | Minnesota |
| 34 | Glenn R Hawkins | 10 | Son | — | Minnesota |
| 35 | Laddie O Hawkins | 8 | Son | — | Minnesota |
| 36 | Theodore Peterson | 52 | Head | Farm Operator | Minnesota |
| 37 | Beulah E Peterson | 52 | Wife | — | Minnesota |
| 38 | Herbert E Peterson | 23 | Son | Farm Operator | Minnesota |
| 39 | Eva Peterson | 19 | Daughter | New Worker | Minnesota |
| 40 | Gerald D Peterson | 13 | Son | — | Minnesota |
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)