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Lois Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Brule-County, South Dakota
Our Model Tree links this Lois Thompson across the 1930 and 1940 US Censuses in Brule-County, South Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 8-person household.
Age 10
b. ~1930
Female
Daughter
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Brule-County, South Dakota |
| Surname | Thompson |
| Given Name | Lois |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Union |
| 1935 Residence (County) | Brule |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Union |
| Est. Birth Year | ~1930 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lois | Age | Birth yr |
|---|---|---|---|---|
| Mildred Thompson | Son | — | 18 | ~1922 |
| Lorraine Thompson | Daughter | — | 2 | ~1938 |
| Raymond Thompson | Son | — | 12 | ~1928 |
| Avery Thompson | Son | — | 19 | ~1921 |
| Lucille Thompson | Daughter | — | 10 | ~1930 |
| Mamie Thompson | Spouse | — | 44 | ~1896 |
| Henry Thompson | Head | — | 44 | ~1896 |
| Lois Thompson | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Brule, South …
Daughter, age
Brule, South Dakota · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Lois A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Brule-County, South …
Daughter, age 10
Brule-County, South Dakota · implied b. ~1930 — 8 household members
| Surname | Thompson |
| Given Name | Lois |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Union |
| 1935 Residence (County) | Brule |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| 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 Lois Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lois Thompson
Daughter · 1940 · age 10 · b. ~1930 · South Dakota
★ You are viewing this record
Sibling
Lucille Thompson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Thompson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Thompson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Thompson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Avery Thompson
Sibling · 1940 · age 19
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 — Brule-County, South Dakota
Open full size
1940 US Federal Census — Brule-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03849-01121)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Idora Clem | 43 | wife | Housewife | South Dakota |
| 42 | Pearl Clem | 24 | daughter | Teacher | South Dakota |
| 43 | Havlik Stella Clem | 67 | mother-in-law | — | Iowa |
| 44 | Oscar Olson | 50 | head | Farming | South Dakota |
| 45 | Tonie Olson | 47 | wife | Housewife | South Dakota |
| 46 | Harry Olson | 18 | son | Farm Laborer | South Dakota |
| 47 | Florence Olson | 15 | daughter | — | South Dakota |
| 48 | Kristian Johnson | 57 | head | Farming | Norway |
| 49 | Kristina Johnson | 58 | wife | Housewife | Norway |
| 50 | Alice Johnson | 21 | daughter | House Work | South Dakota |
| 51 | Edith Johnson | 19 | daughter | House Work | South Dakota |
| 52 | Bernice Johnson | 16 | daughter | — | South Dakota |
| 53 | Dorothy Shumaker | 13 | grand daughter | — | South Dakota |
| 54 | Jorgine Johnson | 34 | head | Farming | Norway |
| 55 | Edith Johnson | 23 | wife | Housewife | South Dakota |
| 56 | Blair Infant Johnson | 0 | son | — | South Dakota |
| 57 | John Picek | 34 | head | Farming | South Dakota |
| 58 | Goldie Picek | 30 | wife | Housewife | South Dakota |
| 59 | Delila Picek | 11 | daughter | — | South Dakota |
| 60 | Donald Picek | 7 | son | — | South Dakota |
| 61 | John Dean Picek | 5 | son | — | South Dakota |
| 62 | Carl Madsen | 39 | head | Farming | Denmark |
| 63 | Frank Satterlee | 55 | head | Farming | South Dakota |
| 64 | Alma Satterlee | 51 | wife | Housewife | Wisconsin |
| 65 | Orville Satterlee | 25 | son | Farm Laborer | South Dakota |
| 66 | Andrew Satterlee | 52 | head | Farming | South Dakota |
| 67 | Dora Satterlee | 48 | wife | Housewife | Nebraska |
| 68 | Roy Satterlee | 15 | son | Farm Laborer | South Dakota |
| 69 | Hazel Satterlee | 5 | daughter | — | South Dakota |
| 70 | Alvin Satterlee | 2 | son | — | South Dakota |
| 71 | Henry Thompson | 44 | head | Farming | South Dakota |
| 72 | Mamie Thompson | 44 | wife | Housewife | South Dakota |
| 73 | Avery Thompson | 19 | son | Farm Laborer | South Dakota |
| 74 | Mildred Thompson | 18 | son | Farm Laborer | South Dakota |
| 75 | Lucille Thompson | 10 | daughter | — | South Dakota |
| 76 | Raymond Thompson | 12 | son | — | South Dakota |
| 77 | Lois Thompson THIS PERSON | 10 | daughter | — | South Dakota |
| 78 | Lorraine Thompson | 2 | daughter | — | South Dakota |
| 79 | Dewey Brinker | 41 | head | Farming | Iowa |
| 80 | Nancy Brinker | 41 | wife | Housewife | South Dakota |
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)