MJ
Matilda Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Union, South Dakota
Our Model Tree links this Matilda Johnson across the 1920, 1930 and 1940 US Censuses in Union, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 4-person household.
Age 42
b. ~1888
Female
Spouse
Born: South Dakota
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Union, South Dakota |
| Surname | Johnson |
| Given Name | Matilda J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Alcester Township |
| Est. Birth Year | ~1888 |
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 1930 census.
| Name | Relation to head | Relative to Matilda | Age | Birth yr |
|---|---|---|---|---|
| Raymond Johnson | Son | — | 13 | ~1917 |
| Matilda Johnson | Spouse | — | 42 | ~1888 |
| Melvin Johnson | Son | — | 18 | ~1912 |
| Edward Johnson | Head | — | 44 | ~1886 |
Census Appearances
1920
Union, South …
Spouse, age 31
Union, South Dakota · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mathilda J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Union, South …
Spouse, age 42
Union, South Dakota · implied b. ~1888 — 4 household members
| Surname | Johnson |
| Given Name | Matilda J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Union-County, South …
Spouse, age 52
Union-County, South Dakota · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mathilda M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Alcester Township |
| 1935 Residence (County) | Union |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 6 |
| 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 Matilda Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Matilda Johnson
Spouse · 1930 · age 42 · b. ~1888 · South Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Union, South Dakota
Open full size
1930 US Federal Census — Union, South Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2232unit:0025)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Andrew J. Twedt | 58 | Head | Farmer | South Dakota |
| 52 | Anna Twedt | 41 | Wife | — | Norway |
| 53 | Paul A. Twedt | 14 | Daughter | — | South Dakota |
| 54 | Milton N. Twedt | 11 | Son | — | South Dakota |
| 55 | Thelma Twedt | 10 | Daughter | — | South Dakota |
| 56 | Violet Twedt | 9 | Daughter | — | South Dakota |
| 57 | Alga Twedt | 8 | Daughter | — | South Dakota |
| 58 | Donald R. Twedt | 6 | Son | — | South Dakota |
| 59 | Raymond Twedt | 5 | Son | — | South Dakota |
| 60 | Doris Twedt | 1 | Daughter | — | South Dakota |
| 61 | David J. Swanson | 35 | Head | Farmer | Iowa |
| 62 | Allida B. Swanson | 33 | Wife | — | South Dakota |
| 63 | Kermit D. Swanson | 1 | Son | — | South Dakota |
| 64 | David J. Halkenson | 32 | Assistant | Laborer | Iowa |
| 65 | Belinda Swanson | 62 | Head | Farmer | Sweden |
| 66 | Esther O. Swanson | 32 | Daughter | — | Iowa |
| 67 | Vernon A. Swanson | 22 | Son | Laborer | Iowa |
| 68 | Charles Swanson | 62 | Brother-in-law | — | Sweden |
| 69 | Ruth W. Thompson | 58 | Head | Farmer | Iowa |
| 70 | Wallace J. Thompson | 23 | Son | Laborer | Iowa |
| 71 | Wallace William J. Thompson | 21 | Son | Laborer | Iowa |
| 72 | Joseph Sewell | 49 | Head | Farmer | South Dakota |
| 73 | Emily V. Sewell | 47 | Wife | — | South Dakota |
| 74 | Della V. Sewell | 16 | Daughter | — | South Dakota |
| 75 | Oliver J. Sewell | 13 | Son | — | South Dakota |
| 76 | Irene S. Sewell | 7 | Daughter | — | South Dakota |
| 77 | Paul Magenot | 15 | Assistant | Laborer | Missouri |
| 78 | Louis Larson | 73 | Head | Farmer | Sweden |
| 79 | Christina Larson | 71 | Sister | — | Sweden |
| 80 | Edward S. Johnson | 44 | Head | Farmer | South Dakota |
| 81 | Matilda J. Johnson THIS PERSON | 42 | Wife | — | South Dakota |
| 82 | Melvin E. Johnson | 18 | Son | Laborer | South Dakota |
| 83 | Raymond E. Johnson | 13 | Son | — | South Dakota |
| 84 | Osmond J. Twedt | 28 | Head | Farmer | South Dakota |
| 85 | Eric Gunnuland | 21 | Assistant | Laborer | Norway |
| 86 | Harry B. A. Barthill | 54 | Head | Farmer | South Dakota |
| 87 | Mabel A. Barthill | 42 | Wife | — | South Dakota |
| 88 | Martin D. Barthill | 18 | Son | — | South Dakota |
| 89 | Violet R. Barthill | 16 | Daughter | — | South Dakota |
| 90 | Kenneth A. Barthill | 12 | Son | — | South Dakota |
| 91 | Shirley L. Barthill | 9 | Daughter | — | South Dakota |
| 92 | George A. Bolton | 42 | Assistant | Laborer | Iowa |
| 93 | Blanche Cooter | 31 | Assistant | Laborer | South Dakota |
| 94 | Gustave W. Wilson | 59 | Head | Farmer | Sweden |
| 95 | Helma Wilson | 54 | Wife | — | Iowa |
| 96 | Esther Wilson | 26 | Daughter | — | Iowa |
| 97 | Hazel Wilson | 24 | Daughter | Teacher | Iowa |
| 98 | Harold W. Wilson | 17 | Son | Laborer | South Dakota |
| 99 | Bernard Wilson | 14 | Son | — | South Dakota |
| 100 | Doris Wilson | 11 | Daughter | — | South Dakota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)