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Andrew Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Charles-Mix-County, South Dakota
Our Model Tree links this Andrew Johnson across the 1920, 1930 and 1940 US Censuses in Charles-Mix-County, South Dakota (XGBoost, ~Confirmed), with identified parents Andrew — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-Mix-County, South Dakota |
| Surname | Johnson |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Lake George Township |
| 1935 Residence (County) | Charles Mix |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Farmer |
| Township / Ward | Lake George Township |
| Est. Birth Year | ~1910 |
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 1940 census.
| Name | Relation to head | Relative to Andrew | Age | Birth yr |
|---|---|---|---|---|
| Ray Johnson | Daughter | — | ~1940 | |
| Andrew Johnson | Head | — | 30 | ~1910 |
| Francis Johnson | Son | — | 2 | ~1938 |
| Kathryn Johnson | Spouse | — | 21 | ~1919 |
Census Appearances
1920
Charles Mix, …
Other, age 10
Charles Mix, South Dakota · implied b. ~1910 — 28 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Andrew R |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Charles Mix, …
Son, age 21
Charles Mix, South Dakota · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Andrew R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Iowa |
| Occupation | Farm Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Charles-Mix-County, South …
Head, age 30
Charles-Mix-County, South Dakota · implied b. ~1910 — 4 household members
| Surname | Johnson |
| Given Name | Andrew |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Lake George Township |
| 1935 Residence (County) | Charles Mix |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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 Andrew Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Johnson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
This person
Anchor record
Andrew Johnson
Head · 1940 · age 30 · b. ~1910 · 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 — Charles-Mix-County, South Dakota
Open full size
1940 US Federal Census — Charles-Mix-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03851-00186)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emaline Gruenig | 36 | Wife | — | Iowa |
| 2 | Leonard Gruenig | 5 | Son | Farm Laborer | South Dakota |
| 3 | Andrew Johnson THIS PERSON | 30 | Head | Farmer | South Dakota |
| 4 | Kathryn Johnson | 21 | Wife | — | South Dakota |
| 5 | Francis Johnson | 2 | Son | — | South Dakota |
| 6 | Ray Johnson | 0 | Daughter | — | South Dakota |
| 7 | Pearl Weekly | 62 | Head | — | Iowa |
| 8 | Elsie Weekly | 51 | Wife | — | South Dakota |
| 9 | Birdena Weekly | 13 | Daughter | — | South Dakota |
| 10 | Marion Leach | 38 | Head | Farmer | Indiana |
| 11 | Beatrice Leach | 34 | Wife | — | South Dakota |
| 12 | Eileen Leach | 14 | Daughter | — | South Dakota |
| 13 | Dolores Leach | 12 | Daughter | — | Iowa |
| 14 | Beverly Leach | 10 | Daughter | — | Iowa |
| 15 | Robert Leach | 9 | Son | — | South Dakota |
| 16 | Duane Leach | 4 | Son | — | South Dakota |
| 17 | Burnette Belding | 41 | Head | Farmer | Iowa |
| 18 | Erma Belding | 36 | Wife | — | South Dakota |
| 19 | Francis Belding | 6 | Son | — | South Dakota |
| 20 | Joan Belding | 4 | Daughter | — | South Dakota |
| 21 | Joyce Belding | 4 | Daughter | — | South Dakota |
| 22 | Charlie Hinrich | 36 | Head | Farmer | South Dakota |
| 23 | Ruth Hinrich | 34 | Wife | — | South Dakota |
| 24 | Lucille Hinrich | 3 | Daughter | — | South Dakota |
| 25 | Nelda May Hinrich | 2 | Daughter | — | South Dakota |
| 26 | Richard Hinrich | 0 | Son | — | South Dakota |
| 27 | Urban Greenfield | 39 | Head | Farmer | Illinois |
| 28 | Lillian Greenfield | 34 | Wife | — | South Dakota |
| 29 | Lois Greenfield | 11 | Daughter | — | South Dakota |
| 30 | Frank Dimick | 40 | Head | Farmer | South Dakota |
| 31 | Nora Dimick | 34 | Wife | — | South Dakota |
| 32 | Gloria Dimick | 2 | Daughter | — | South Dakota |
| 33 | Arthur Smith | 45 | Head | Farmer | Michigan |
| 34 | Anna Smith | 46 | Wife | — | Iowa |
| 35 | Clarendon Smith | 21 | Son | Farm Laborer | South Dakota |
| 36 | Mervin Smith | 18 | Son | Farm Laborer | Iowa |
| 37 | Calvin Smith | 14 | Son | Farm Laborer | South Dakota |
| 38 | Buenita Smith | 12 | Daughter | — | South Dakota |
| 39 | Emmet L. Lynch | 34 | Head | Farmer | South Dakota |
| 40 | Mary Lynch | 64 | Mother | — | Wisconsin |
Pedigree Summary
Andrew
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)