JW
James Wilson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Haakon-County, South Dakota
Our Model Tree links this James Wilson across the 1920, 1930 and 1940 US Censuses in Haakon-County, South Dakota (XGBoost, ~Confirmed), with identified parents Wm & William — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Haakon-County, South Dakota |
| Surname | Wilson |
| Given Name | James P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Haakon |
| Additional Details | |
| Occupation | Laborer |
| Industry | Dairy |
| Class of Worker | OA |
| Hours Worked | 48 |
| Highest Grade | Hs 4 |
| 1935 Residence | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Laborer |
| Township / Ward | Fin R20E |
| Est. Birth Year | ~1918 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| William Wilson | Head | — | 54 | ~1886 |
| William Wilson | Son | — | 20 | ~1920 |
| James Wilson | Son | — | 22 | ~1918 |
| Mary Wilson | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Haakon, South …
Son, age 2
Haakon, South Dakota · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wilson |
| Given Name | James P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | Iowa |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Haakon, South …
Son, age 12
Haakon, South Dakota · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wilson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Haakon-County, South …
Son, age 22
Haakon-County, South Dakota · implied b. ~1918 — 4 household members
| Surname | Wilson |
| Given Name | James P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Haakon |
| Occupation | Laborer |
| Industry | Dairy |
| Class of Worker | OA |
| Hours Worked | 48 |
| Highest Grade | Hs 4 |
| 1935 Residence | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 James Wilson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Wm Wilson (~0.92 confidence) and father William Wilson (~0.92 confidence) and mother Mary Wilson (~0.92 confidence) and mother Mary Wilson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Wm Wilson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
William Wilson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Mary Wilson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Wilson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Wilson
Son · 1940 · age 22 · b. ~1918 · South Dakota
★ You are viewing this record
Sibling
William Wilson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Haakon-County, South Dakota
Open full size
1940 US Federal Census — Haakon-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03856-00795)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Chambers | 5 | Son | — | South Dakota |
| 42 | George H Price | 66 | Head | Laborer | England |
| 43 | Jenny L Taylor | 56 | Head | Manager | Iowa |
| 44 | Grace M Taylor | 35 | Wife | — | Nebraska |
| 45 | Ina F Sherman | 71 | Head | — | Pennsylvania |
| 46 | Pearl M Smith | 47 | Head | Cook | South Dakota |
| 47 | Gustav S Carlson | 76 | Head | Gardner | Norway |
| 48 | Oscar Carlson | 46 | Son | Manager | Norway |
| 49 | Edmund W Boye | 26 | Head | Painter | South Dakota |
| 50 | Louisa A Boye | 37 | Wife | — | South Dakota |
| 51 | Edmund W Boye | 3 | Son | — | South Dakota |
| 52 | Robert C Boye | 1 | Son | — | South Dakota |
| 53 | Walter Sigloh | 37 | Head | Salesman | South Dakota |
| 54 | Eleanor Sigloh | 29 | Wife | Bookkeeper | South Dakota |
| 55 | Kenneth Brown | 27 | Head | Trucker | Texas |
| 56 | Beverly Brown | 19 | Wife | — | Massachusetts |
| 57 | Arthur L Maiden | 60 | Head | Laborer | Iowa |
| 58 | Charles E Maiden | 56 | Wife | — | Illinois |
| 59 | John F Arends | 34 | Head | Foreman | Nebraska |
| 60 | Ellen M Arends | 31 | Wife | — | Illinois |
| 61 | Mary E Arends | 9 | Daughter | — | South Dakota |
| 62 | Virginia J Arends | 8 | Daughter | — | South Dakota |
| 63 | Joanne Arends | 0 | Daughter | — | South Dakota |
| 64 | Mariano Mantellano | 60 | Head | Farmer | Italy |
| 65 | Josephine Mantellano | 53 | Wife | — | Italy |
| 66 | Frank Mantellano | 24 | Son | Laborer | South Dakota |
| 67 | Darlin Brooks | 32 | Head | Mechanic | South Dakota |
| 68 | Darline Brooks | 22 | Wife | — | South Dakota |
| 69 | Donna J Brooks | 5 | Daughter | — | South Dakota |
| 70 | Darline S Brooks | 3 | Daughter | — | South Dakota |
| 71 | Mary F Beck | 66 | Head | — | Nebraska |
| 72 | Edward Pfeiffer | 43 | Son | Laborer | Missouri |
| 73 | Gearheart Kinenko | 24 | Head | Farmer | South Dakota |
| 74 | Stella Kinenko | 21 | Wife | — | South Dakota |
| 75 | Herbert C Dunston | 60 | Father-in-law | Gardner | England |
| 76 | Mary A Dunston | 18 | Sister-in-law | — | South Dakota |
| 77 | William J Wilson | 54 | Head | Farmer | South Dakota |
| 78 | Mary F Wilson | 54 | Wife | — | Iowa |
| 79 | James P Wilson THIS PERSON | 22 | Son | Laborer | South Dakota |
| 80 | William F Wilson | 20 | Son | Laborer | South Dakota |
Pedigree Summary
James + 1 sibling
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)