JK
John Klein — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Edmunds-County, South Dakota
Our Model Tree links this John Klein across the 1930 and 1940 US Censuses in Edmunds-County, South Dakota (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Edmunds-County, South Dakota |
| Surname | Klein |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Ipswich City |
| 1935 Residence (County) | Edmunds |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Ipswich City |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Klein | Head | — | 46 | ~1894 |
| Amelia Klein | Daughter | — | 2 | ~1938 |
| Magdalena Klein | Daughter | — | 20 | ~1920 |
| Rose Klein | Daughter | — | 25 | ~1915 |
| Wendelin Klein | Son | — | 18 | ~1922 |
| Eva Klein | Spouse | — | 42 | ~1898 |
| Carl Klein | Son | — | 21 | ~1919 |
| John Klein | Son | — | 15 | ~1925 |
| Aldina Klein | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Edmunds, South …
Son, age 5
Edmunds, South Dakota · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Dusseldorf Germany |
| Mother's Birthplace | South Dakota |
| Occupation | none |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Edmunds-County, South …
Son, age 15
Edmunds-County, South Dakota · implied b. ~1925 — 9 household members
| Surname | Klein |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Ipswich City |
| 1935 Residence (County) | Edmunds |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 John Klein across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Klein
Son · 1940 · age 15 · b. ~1925 · South Dakota
★ You are viewing this record
Sibling
Rose Klein
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Amelia Klein
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Magdalena Klein
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wendelin Klein
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Aldina Klein
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Klein
Sibling · 1940 · age 21
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
1940 US Federal Census — Edmunds-County, South Dakota
Open full size
1940 US Federal Census — Edmunds-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03855-00347)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert H. Schwalk | 54 | Head | Drayman | Illinois |
| 2 | Sophie Schwalk | 52 | Wife | — | Germany |
| 3 | David Schwalk | 24 | Son | Attendant | South Dakota |
| 4 | Martin Schwalk | 18 | Son | Attendant | South Dakota |
| 5 | Bernice Schwalk | 14 | Daughter | — | South Dakota |
| 6 | John Kempher | 61 | Head | — | Russia |
| 7 | Katherine Kempher | 52 | Wife | — | South Dakota |
| 8 | Gertrude Kempher | 21 | Daughter | New Worker | South Dakota |
| 9 | Agnes Kempher | 14 | Daughter | — | South Dakota |
| 10 | Robert Kempher | 11 | Son | — | South Dakota |
| 11 | Charles Callier | 52 | Head | Rural Mail Carrier | South Dakota |
| 12 | William Klein | 46 | Head | Laborer | Germany |
| 13 | Eva Klein | 42 | Wife | Housework | South Dakota |
| 14 | Magdalena Klein | 20 | Daughter | Dishwasher | South Dakota |
| 15 | Wendelin Klein | 18 | Son | Carpenter | South Dakota |
| 16 | John Klein THIS PERSON | 15 | Son | — | South Dakota |
| 17 | Carl Klein | 21 | Son | Laborer | South Dakota |
| 18 | Rose Klein | 25 | Daughter | — | South Dakota |
| 19 | Amelia Klein | 2 | Daughter | — | South Dakota |
| 20 | Aldina Klein | 2 | Daughter | — | South Dakota |
| 21 | George Winston | 60 | Head | Laborer | Canada |
| 22 | Clara Winston | 59 | Wife | — | England |
| 23 | Clarence Winston | 21 | Son | Forestry Clerk | South Dakota |
| 24 | Helen Winston | 18 | Daughter | Dipping | South Dakota |
| 25 | George Winston | 17 | Son | Laborer | South Dakota |
| 26 | Louis Lau | 69 | Head | — | Illinois |
| 27 | Martha Lau | 63 | Wife | — | Wisconsin |
| 28 | George Childers | 53 | Head | Timekeeper | Iowa |
| 29 | Olive Childers | 50 | Wife | — | Nebraska |
| 30 | Henry Lace | 62 | Head | Produce Buyer | South Dakota |
| 31 | Elizabeth Lace | 62 | Wife | — | South Dakota |
| 32 | Clarence Reiner | 68 | Head | Insurance Agent | New Jersey |
| 33 | Mary Reiner | 68 | Wife | — | Connecticut |
| 34 | Fred Dehnert | 32 | Head | Supt Of Schools | Wisconsin |
| 35 | Gladys Dehnert | 29 | Wife | — | Iowa |
| 36 | Harry Germain | 50 | Head | Repairing Shoes | Wisconsin |
| 37 | Sylvia Germain | 35 | Wife | — | Minnesota |
| 38 | Harry Germain | 11 | Son | — | South Dakota |
| 39 | Daniel Germain | 7 | Son | — | South Dakota |
| 40 | Robert Lent | 52 | Head | Oil Driller | Ohio |
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)