VJ
Viola Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Charles Mix, South Dakota
Our Model Tree links this Viola Johnson across the 1910, 1920 and 1930 US Censuses in Charles Mix, South Dakota (XGBoost, ~Confirmed), with identified parents Isaac & Isaac — first a daughter (b.~1909), then head of a 8-person household.
Age 21
b. ~1909
Female
Daughter
Born: South Dakota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Charles Mix, South Dakota |
| Surname | Johnson |
| Given Name | Viola M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | City Of Geddes |
| Est. Birth Year | ~1909 |
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 1930 census.
| Name | Relation to head | Relative to Viola | Age | Birth yr |
|---|---|---|---|---|
| Viola Johnson | Daughter | — | 21 | ~1909 |
| Alice Johnson | Daughter | — | 17 | ~1913 |
| Fern Johnson | Daughter | — | 6 | ~1924 |
| Isaac Johnson | Head | — | 50 | ~1880 |
| Kester Mcclary | Other | — | 16 | ~1914 |
| Lillian Johnson | Other | — | 47 | ~1883 |
| Alfred Johnson | Son | — | 19 | ~1911 |
| Ivan Johnson | Son | — | 25 | ~1905 |
Census Appearances
1910
Charles Mix, …
Daughter, age 1
Charles Mix, South Dakota · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Viola |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Illinois |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1920
Charles Mix, …
Daughter, age 11
Charles Mix, South Dakota · implied b. ~1909 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Viola M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Charles Mix, …
Daughter, age 21
Charles Mix, South Dakota · implied b. ~1909 — 8 household members
| Surname | Johnson |
| Given Name | Viola M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| 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 Viola Johnson across 3 US Census years (1910, 1920 and 1930) in Charles Mix, South Dakota, using XGBoost record linkage. Identified parents: father Isaac Johnson (~0.92 confidence) and father Isaac Johnson (~0.92 confidence) and father Oscar Johnson (~0.92 confidence) and mother Lillian Johnson (~0.92 confidence) and mother Lillian Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Isaac Johnson
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Isaac Johnson
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Oscar Johnson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lillian Johnson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Lillian Johnson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Viola Johnson
Daughter · 1930 · age 21 · b. ~1909 · South Dakota
★ You are viewing this record
Sibling
Alice Johnson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ivan Johnson
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fern Johnson
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Johnson
Sibling · 1930 · 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
1930 US Federal Census — Charles Mix, South Dakota
Open full size
1930 US Federal Census — Charles Mix, South Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2220unit:0209)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anton Kalda | 30 | Head | Proprietor | South Dakota |
| 2 | Ida M. Kalda | 29 | Wife-H | — | North Dakota |
| 3 | Maurice A. Kalda | 6 | Son | — | South Dakota |
| 4 | Gus Bursik | 40 | Head | Butcher | South Dakota |
| 5 | Cora B. Bursik | 35 | Wife-H | — | Iowa |
| 6 | Nima B. Bursik | 9 | Daughter | — | South Dakota |
| 7 | George J. Bursik | 6 | Son | — | South Dakota |
| 8 | Joseph Bursik | 66 | Father | — | Czechoslovakia |
| 9 | George M. Shuck | 76 | Head | — | Indiana |
| 10 | Alice H. Shuck | 75 | Wife-H | — | New York |
| 11 | Joseph C. Kane | 54 | Head | — | Wisconsin |
| 12 | Margaret E. Kane | 53 | Wife-H | — | Iowa |
| 13 | William B. Yarosh | 46 | Head | Proprietor | South Dakota |
| 14 | Abby H. Yarosh | 42 | Wife-H | — | South Dakota |
| 15 | Ralph A. Yarosh | 16 | Son | Helper | South Dakota |
| 16 | W. Perry Biddle | 72 | Head | — | Iowa |
| 17 | Reunilda Jaeger | 30 | Servant | House-Keeper | Iowa |
| 18 | Henry W. Lathrop | 45 | Head | Mechanic | South Dakota |
| 19 | Catherine C. Lathrop | 39 | Wife-H | — | Iowa |
| 20 | Maurice W. Lathrop | 13 | Son | — | South Dakota |
| 21 | John H. Lathrop | 11 | Son | — | South Dakota |
| 22 | Ellen M. Lathrop | 7 | Daughter | — | South Dakota |
| 23 | Raymond B. Lathrop | 5 | Son | — | South Dakota |
| 24 | Edward U. Lathrop | 4 | Son | — | South Dakota |
| 25 | Sivert-Sr. Nahl | 46 | Head | Laborer | Norway |
| 26 | Olise Nahl | 54 | Wife-H | — | Norway |
| 27 | Andrew M. Nahl | 21 | Son | Laborer | South Dakota |
| 28 | Sivert-Jr. Nahl | 17 | Son | — | South Dakota |
| 29 | Oscar Nahl | 14 | Son | — | South Dakota |
| 30 | Marianna Nahl | 11 | Daughter | — | South Dakota |
| 31 | Isaac Johnson | 50 | Head | — | Norway |
| 32 | Lillian N. Johnson | 47 | Wife-H | Manager | Illinois |
| 33 | Ivan C. Johnson | 25 | Son | — | South Dakota |
| 34 | Viola M. Johnson THIS PERSON | 21 | Daughter | — | South Dakota |
| 35 | Alfred R. Johnson | 19 | Son | — | South Dakota |
| 36 | Alice M. Johnson | 17 | Daughter | — | South Dakota |
| 37 | Fern M. Johnson | 6 | Daughter | — | South Dakota |
| 38 | Kester L. Mcclary | 16 | Lodger | Mechanic | South Dakota |
| 39 | Ralph H. Johnson | 23 | Head | Driver | South Dakota |
| 40 | Emma Johnson | 23 | Wife-H | — | South Dakota |
| 41 | Grant Mcclintock | 64 | Head | Helper | Iowa |
| 42 | Annie Mcclintock | 59 | Wife-H | — | Iowa |
| 43 | Alene T. Mcclintock | 25 | Daughter | Teacher | Iowa |
| 44 | Thine Indahl | 69 | Head-H | — | Norway |
| 45 | John H. Crowley | 54 | Head | Grain Buyer | Illinois |
| 46 | Ellen M. Crowley | 40 | Sister-H | — | Illinois |
| 47 | Mary A. Crowley | 77 | Mother | — | New York |
| 48 | Guy Salisbury | 52 | Head | Manager | Iowa |
| 49 | Lillian M. Salisbury | 50 | Wife-H | — | Iowa |
| 50 | Andrew A. Rowan | 26 | Head | Manager | South Dakota |
Pedigree Summary
Viola + 4 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)