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Alma Johnson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Day, South Dakota
Our Model Tree links this Alma Johnson across the 1900, 1910 and 1920 US Censuses in Day, South Dakota (XGBoost, ~Confirmed), with identified parents Nels & Ida — first a daughter (b.~1895), then head of a 4-person household.
Age 25
b. ~1895
Female
Daughter
Born: South Dakota
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Day, South Dakota |
| Surname | Johnson |
| Given Name | Alma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Operator |
| Township / Ward | Webster |
| Est. Birth Year | ~1895 |
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 1920 census.
| Name | Relation to head | Relative to Alma | Age | Birth yr |
|---|---|---|---|---|
| Lena Johnson | Daughter | — | 23 | ~1897 |
| Jane Johnson | Daughter | — | 18 | ~1902 |
| Alma Johnson | Daughter | — | 25 | ~1895 |
| Ida Johnson | Head | — | 50 | ~1870 |
Census Appearances
1900
Day, South …
Daughter, age 6
Day, South Dakota · implied b. ~1894 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Birth Month | Jan |
| Birth Year | 1894 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | At school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1910
Day, South …
Daughter, age 16
Day, South Dakota · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alma V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1920
Day, South …
Daughter, age 25
Day, South Dakota · implied b. ~1895 — 4 household members
| Surname | Johnson |
| Given Name | Alma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Operator |
| Industry | Telephone Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Alma Johnson across 3 US Census years (1900, 1910 and 1920) in Day, South Dakota, using XGBoost record linkage. Identified parents: father Nels Johnson (~0.92 confidence) and mother Ida Johnson (~0.92 confidence) and mother Ida Johnson (~0.92 confidence) and mother Ida Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nels Johnson
b. ~1852
Source father
● Household
· direct · ~0.92
Mother
Ida Johnson
b. ~1859
Source mother
● Household
· direct · ~0.92
Mother
Ida Johnson
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Ida Johnson
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alma Johnson
Daughter · 1920 · age 25 · b. ~1895 · South Dakota
★ You are viewing this record
Sibling
Jane Johnson
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lena Johnson
Sibling · 1920 · age 23
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
1920 US Federal Census — Day, South Dakota
Open full size
1920 US Federal Census — Day, South Dakota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1718unit:0894)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Goldie F. | 20 | Daughter | Stenographer | Minnesota |
| 2 | Cornelius R. | 19 | Son | — | South Dakota |
| 3 | Clarence R. | 17 | Son | — | South Dakota |
| 4 | Arthur R. | 13 | Daughter | — | South Dakota |
| 5 | Clyde R. | 11 | Son | — | South Dakota |
| 6 | Roderic R. | 9 | Son | — | South Dakota |
| 7 | Joseph Schmidt | 59 | Head | Blacksmith | Bavaria |
| 8 | Selma Schmidt | 54 | Wife | — | Saxony |
| 9 | Goldie Schmidt | 23 | Daughter | Stenographer | South Dakota |
| 10 | Ruth E. Rolf | 25 | Head | — | South Dakota |
| 11 | Evelyn M. Rolf | 8 | Daughter | — | South Dakota |
| 12 | Elvera V. Rolf | 6 | Daughter | — | South Dakota |
| 13 | Enoch E. Rolf | 4 | Son | — | South Dakota |
| 14 | Lydia E. Rolf | 2 | Daughter | — | South Dakota |
| 15 | Royal E. Rolf | 0 | Son | — | South Dakota |
| 16 | William Rich | 55 | Head | Veterinary | Wisconsin |
| 17 | Agnes H. Rich | 47 | Wife | — | New York |
| 18 | Lois S. Rich | 21 | Daughter | — | Wisconsin |
| 19 | Opal L. Rich | 15 | Daughter | — | South Dakota |
| 20 | Helen E. Rich | 11 | Daughter | — | South Dakota |
| 21 | Albert R. Rich | 9 | Son | — | South Dakota |
| 22 | Chester M. Tetzlaff | 26 | Head | Farmer | Wisconsin |
| 23 | Valborg E. Tetzlaff | 23 | Wife | — | Minnesota |
| 24 | Ida Johnson | 50 | Head | — | Sweden |
| 25 | Alma Johnson THIS PERSON | 25 | Daughter | Operator | South Dakota |
| 26 | Lena Johnson | 23 | Daughter | Clerk | South Dakota |
| 27 | Jane Johnson | 18 | Daughter | — | South Dakota |
| 28 | Otto Bloom | 30 | Head | Butcher | Sweden |
| 29 | Mable R. J. Bloom | 20 | Wife | — | Illinois |
| 30 | Kenneth B. Bloom | 2 | Son | — | South Dakota |
| 31 | Dwayne E. Bloom | 0 | Son | — | South Dakota |
| 32 | Thomas Jr. Pesa | 34 | Head | Manager | Iowa |
| 33 | Herbertine Pesa | 33 | Wife | — | Holland |
| 34 | Elizabeth J. Pesa | 12 | Daughter | — | Iowa |
| 35 | Charles E. Case | 60 | Head | — | Wisconsin |
| 36 | Minnie A. Case | 43 | Wife | — | Minnesota |
| 37 | Clinton E. Case | 12 | Son | — | South Dakota |
| 38 | John Hedges | 61 | Head | — | Illinois |
| 39 | Mary Hedges | 61 | Wife | — | Wisconsin |
| 40 | John G. Karlson | 32 | Head | Grain Buyer | South Dakota |
| 41 | Olga M. Karlson | 24 | Wife | — | South Dakota |
| 42 | George W. Karlson | 4 | Son | — | South Dakota |
| 43 | Margret R. Karlson | 2 | Daughter | — | South Dakota |
| 44 | Joel R. White | 53 | Head | Carpenter | Minnesota |
| 45 | Cordelia E. White | 52 | Wife | — | Illinois |
| 46 | Florence R. White | 27 | Daughter | Clerk | Minnesota |
| 47 | Elsie A. White | 22 | Daughter | Deputy Register | Minnesota |
| 48 | Mabel E. White | 16 | Daughter | — | Minnesota |
| 49 | Frances L. White | 11 | Daughter | — | South Dakota |
| 50 | Bernice P. White | 24 | Boarder | Stenographer | South Dakota |
Related Census Records
Pedigree Summary
Alma + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)