LJ
Lydia Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hughes-County, South Dakota
Our Model Tree links this Lydia Johnson across the 1930 and 1940 US Censuses in Hughes-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Female
Spouse
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hughes-County, South Dakota |
| Surname | Johnson |
| Given Name | Lydia A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | T 112 R 76 (pt) |
| 1935 Residence (County) | Hughes |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same Place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | T 112 R 76 Pt |
| Est. Birth Year | ~1899 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lydia | Age | Birth yr |
|---|---|---|---|---|
| Norman Johnson | Son | — | 6 | ~1934 |
| August Johnson | Head | — | 42 | ~1898 |
| Lydia Johnson | Spouse | — | 41 | ~1899 |
| Caroline Johnson | Daughter | — | 14 | ~1926 |
| Wesley Johnson | Son | — | 16 | ~1924 |
Census Appearances
1930
Hughes, South …
Spouse, age 29
Hughes, South Dakota · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lydia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 24 |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Hughes-County, South …
Spouse, age 41
Hughes-County, South Dakota · implied b. ~1899 — 5 household members
| Surname | Johnson |
| Given Name | Lydia A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | T 112 R 76 (pt) |
| 1935 Residence (County) | Hughes |
| Class of Worker | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same Place |
| 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 Lydia Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lydia Johnson
Spouse · 1940 · age 41 · b. ~1899 · South Dakota
★ 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 — Hughes-County, South Dakota
Open full size
1940 US Federal Census — Hughes-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03857-00937)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theola Erickson | 6 | Daughter | — | South Dakota |
| 2 | Lyle Erickson | 3 | Son | — | South Dakota |
| 3 | Clarence E Crain | 62 | Head | Farmer | Kansas |
| 4 | Carrie May Crain | 53 | Wife | — | Kansas |
| 5 | Harry E Crain | 22 | Son | Laborer | South Dakota |
| 6 | Clark E Crain | 20 | Son | Mason | South Dakota |
| 7 | Virgil Roy Crain | 17 | Son | Laborer | South Dakota |
| 8 | Hugh Crain | 13 | Son | — | South Dakota |
| 9 | Clinton H Borden | 32 | Head | Farmer | Iowa |
| 10 | Nellie A Borden | 33 | Wife | — | South Dakota |
| 11 | Donald H Borden | 9 | Son | — | South Dakota |
| 12 | Edward Dean Borden | 7 | Son | — | South Dakota |
| 13 | Dona Jean Borden | 4 | Daughter | — | South Dakota |
| 14 | Clifford D Borden | 34 | Head | Farmer | Iowa |
| 15 | Marie Borden | 36 | Wife | — | Iowa |
| 16 | Eva Borden | 12 | Daughter | — | South Dakota |
| 17 | Leah Borden | 10 | Daughter | — | South Dakota |
| 18 | Clarence Borden | 7 | Son | — | South Dakota |
| 19 | Jessie Borden | 2 | Daughter | — | South Dakota |
| 20 | Viola Borden | 1 | Daughter | — | South Dakota |
| 21 | John K Long | 25 | Lodger | Laborer | South Dakota |
| 22 | Joseph A Shore | 77 | Lodger | — | Iowa |
| 23 | Albert F Kleinschmidt | 57 | Head | Farmer | Iowa |
| 24 | Lillie A Kleinschmidt | 49 | Wife | — | Nebraska |
| 25 | Chester L Kleinschmidt | 14 | Son | — | South Dakota |
| 26 | Thor O Halverson | 67 | Head | Farming | Norway |
| 27 | Clara Halverson | 56 | Wife | — | Norway |
| 28 | Arnold H Nelson | 35 | Head | Farming | South Dakota |
| 29 | Leona Nelson | 29 | Wife | — | South Dakota |
| 30 | Arnold H Nelson | 10 | Son | — | South Dakota |
| 31 | Caleb E Mercer | 60 | Head | Farmer | Iowa |
| 32 | Sara Pearl Mercer | 54 | Wife | — | South Dakota |
| 33 | August Johnson | 42 | Head | Farmer | Sweden |
| 34 | Lydia A Johnson THIS PERSON | 41 | Wife | — | South Dakota |
| 35 | Wesley Johnson | 16 | Son | — | South Dakota |
| 36 | Caroline Johnson | 14 | Daughter | — | South Dakota |
| 37 | Norman Johnson | 6 | Son | — | South Dakota |
| 38 | Randall Mercer | 32 | Head | Farmer | South Dakota |
| 39 | Mae Mercer | 30 | Wife | — | Missouri |
| 40 | Robert Mercer | 11 | Son | — | Iowa |
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)