LB
Lloyd Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marshall-County, South Dakota
Our Model Tree links this Lloyd Brown across the 1930 and 1940 US Censuses in Marshall-County, South Dakota (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, South Dakota |
| Surname | Brown |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Buffalo Township |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Farm Laborer |
| Township / Ward | Buffalo Township |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lloyd | Age | Birth yr |
|---|---|---|---|---|
| Russell Brown | Son | — | 10 | ~1930 |
| Daniel Brown | Son | — | 17 | ~1923 |
| Lydia Brown | Spouse | — | 37 | ~1903 |
| Walter Brown | Head | — | 43 | ~1897 |
| Doris Brown | Daughter | — | 12 | ~1928 |
| Walter Brown | Son | — | 5 | ~1935 |
| Ruth Brown | Daughter | — | 14 | ~1926 |
| Phillip Brown | Son | — | 8 | ~1932 |
| Lloyd Brown | Son | — | 20 | ~1920 |
Census Appearances
1930
Marshall, South …
Son, age 10
Marshall, South Dakota · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Marshall-County, South …
Son, age 20
Marshall-County, South Dakota · implied b. ~1920 — 9 household members
| Surname | Brown |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Buffalo Township |
| 1935 Residence (County) | Marshall |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 Lloyd Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lloyd Brown
Son · 1940 · age 20 · b. ~1920 · South Dakota
★ You are viewing this record
Sibling
Russell Brown
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Brown
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Brown
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Brown
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Brown
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Brown
Sibling · 1940 · age 5
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 — Marshall-County, South Dakota
Open full size
1940 US Federal Census — Marshall-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03861-00909)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ole O Palm | 55 | Head | Farmer | Sweden |
| 42 | Kenneth Gunderson | 23 | Head | Teacher | South Dakota |
| 43 | Walter Brown | 43 | Head | Farmer | South Dakota |
| 44 | Lydia Brown | 37 | Wife | — | South Dakota |
| 45 | Lloyd Brown THIS PERSON | 20 | Son | Farm Laborer | South Dakota |
| 46 | Daniel Brown | 17 | Son | Laborer | South Dakota |
| 47 | Ruth Brown | 14 | Daughter | — | South Dakota |
| 48 | Doris Brown | 12 | Daughter | — | South Dakota |
| 49 | Russell Brown | 10 | Son | — | South Dakota |
| 50 | Phillip Brown | 8 | Son | — | South Dakota |
| 51 | Walter Jr Brown | 5 | Son | — | South Dakota |
| 52 | Oscar O Nelson | 52 | Head | Farmer | Minnesota |
| 53 | Selma Nelson | 50 | Wife | — | Minnesota |
| 54 | Sanford Nelson | 23 | Son | Farmer | South Dakota |
| 55 | Odie Nelson | 21 | Son | Farm Laborer | South Dakota |
| 56 | Betty Jane Nelson | 10 | Daughter | — | South Dakota |
| 57 | Olie O Skogeborg | 49 | Head | — | Minnesota |
| 58 | Albert Skogeborg | 26 | Son | Farm Laborer | South Dakota |
| 59 | Sylvester Skogeborg | 25 | Son | Farm Laborer | South Dakota |
| 60 | Mabel Skogeborg | 14 | Daughter | — | South Dakota |
| 61 | Barton Skogeborg | 10 | Son | — | South Dakota |
| 62 | Orville Skogeborg | 6 | Son | — | South Dakota |
| 63 | Waldo Johnson | 17 | Laborer | Farm Laborer | Minnesota |
| 64 | Melvin Skoger | 52 | Head | Farmer | South Dakota |
| 65 | Helma Skoger | 49 | Wife | — | Minnesota |
| 66 | Lorene Skoger | 18 | Daughter | — | South Dakota |
| 67 | Leroy Skoger | 16 | Son | Farmer | South Dakota |
| 68 | Hazel Skoger | 12 | Daughter | — | South Dakota |
| 69 | Irvine Skoger | 10 | Son | — | South Dakota |
| 70 | Duane Skoger | 3 | Son | — | South Dakota |
| 71 | Darwin Valnes | 33 | Head | Farmer | South Dakota |
| 72 | Iola Valnes | 33 | Wife | — | South Dakota |
| 73 | Eldon Valnes | 8 | Son | — | South Dakota |
| 74 | Verlene Valnes | 5 | Daughter | — | South Dakota |
| 75 | Caron Rae Valnes | 1 | Daughter | — | South Dakota |
| 76 | Betty Q Hofer | 22 | Lodger | Teacher | South Dakota |
| 77 | Arthur O Aastrom | 44 | Head | Farmer | South Dakota |
| 78 | Ella Aastrom | 36 | Wife | — | South Dakota |
| 79 | Bernice Aastrom | 14 | Daughter | — | South Dakota |
| 80 | Ardis Aastrom | 8 | Daughter | — | South Dakota |
Related Census Records
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)