JK
John Klein — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sedgwick-County, Kansas
Our Model Tree links this John Klein across the 1920, 1930 and 1940 US Censuses in Sedgwick-County, Kansas (XGBoost, ~Confirmed), with identified parents Nick & Agnes — first a son (b.~1914), then head of a 8-person household.
Age 26
b. ~1914
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sedgwick-County, Kansas |
| Surname | Klein |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Andale City |
| 1935 Residence (County) | Sedgwick |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Truck Line |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 552 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Truck Driver |
| Township / Ward | Andale City |
| Est. Birth Year | ~1914 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nicholas Klein | Head | — | 56 | ~1884 |
| James Klein | Son | — | 8 | ~1932 |
| Agnes Klein | Daughter | — | 23 | ~1917 |
| Agnes Klein | Spouse | — | 53 | ~1887 |
| Nicholas Klein | Son | — | 11 | ~1929 |
| Bernard Klein | Son | — | 16 | ~1924 |
| John Klein | Son | — | 26 | ~1914 |
| Rita Klein | Daughter | — | 13 | ~1927 |
Census Appearances
1920
Sedgwick, Kansas
Son, age 6
Sedgwick, Kansas · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | Johnnie |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Germany |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Sedgwick, Kansas
Son, age 16
Sedgwick, Kansas · implied b. ~1914 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Germany |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Sedgwick-County, Kansas
Son, age 26
Sedgwick-County, Kansas · implied b. ~1914 — 8 household members
| Surname | Klein |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Andale City |
| 1935 Residence (County) | Sedgwick |
| Occupation | Truck Driver |
| Industry | Truck Line |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 552 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nick Klein (~0.92 confidence) and mother Agnes Klein (~0.92 confidence) and mother Agnes Klein (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nick Klein
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Agnes Klein
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Agnes Klein
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Klein
Son · 1940 · age 26 · b. ~1914 · Kansas
★ You are viewing this record
Sibling
James Klein
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Klein
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Klein
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Klein
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nicholas Klein
Sibling · 1940 · age 11
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 — Sedgwick-County, Kansas
Open full size
1940 US Federal Census — Sedgwick-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01258-00805)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leo Neid | 10 | Son | — | Kansas |
| 2 | Donna Neid | 7 | Daughter | — | Kansas |
| 3 | Mary Heiger | 74 | Head | Clerk | Kansas |
| 4 | Katherine A. Heiger | 61 | Sister | — | Kansas |
| 5 | Anna Heiger | 58 | Sister | Clerk | Kansas |
| 6 | Christian J. Freund | 55 | Head | Manager | Kansas |
| 7 | Louise Freund | 53 | Wife | — | Kansas |
| 8 | Marvin Freund | 25 | Son | Automobile Mechanic | Kansas |
| 9 | Wilmer Freund | 15 | Son | — | Kansas |
| 10 | Charles Freund | 14 | Son | — | Kansas |
| 11 | John Heis | 58 | Head | Gardener | Wisconsin |
| 12 | Mary Heis | 53 | Wife | — | Nebraska |
| 13 | Mathias C. @ Deffing | 53 | Head | Carpenter | Minnesota |
| 14 | Frances Deffing | 49 | Wife | — | Kansas |
| 15 | August A. Unger | 48 | Head | Traveling Salesman | Austria |
| 16 | Catalina Unger | 44 | Wife | — | Kansas |
| 17 | Agnes Unger | 21 | Daughter | Servant | Kansas |
| 18 | Raymond Unger | 16 | Son | — | Kansas |
| 19 | Rose Unger | 14 | Daughter | — | Kansas |
| 20 | Mathias P. Unger | 10 | Son | — | Kansas |
| 21 | Caroline Unger | 7 | Daughter | — | Kansas |
| 22 | Nicholas Klein | 56 | Head | Drayman | Germany |
| 23 | Agnes Klein | 53 | Wife | — | Kansas |
| 24 | John Klein THIS PERSON | 26 | Son | Truck Driver | Kansas |
| 25 | Agnes Klein | 23 | Daughter | Waitress | Kansas |
| 26 | Bernard Klein | 16 | Son | — | Kansas |
| 27 | Rita Klein | 13 | Daughter | — | Kansas |
| 28 | Nicholas Klein | 11 | Son | — | Kansas |
| 29 | James Klein | 8 | Son | — | Kansas |
| 30 | Anthony Nuessen | 33 | Head | Asst. Manager | Kansas |
| 31 | Agnes Nuessen | 38 | Sister | — | Kansas |
| 32 | Albert Nuessen | 31 | Brother | Farmer | Kansas |
| 33 | George Nuessen | 28 | Brother | Janitor | Kansas |
| 34 | Charles Nuessen | 26 | Brother | Attendant | Kansas |
| 35 | David @ Kozak | 50 | Head | Barber | West Virginia |
| 36 | Ione Kozak | 42 | Wife | — | Kansas |
| 37 | Joseph Kozak | 4 | Son | — | Kansas |
| 38 | Norman L. Black | 52 | Head | Bumper | Pennsylvania |
| 39 | Olive M. Black | 46 | Wife | — | Ohio |
| 40 | Norman L. Jr. Black | 21 | Son | Pipefitters Helper | Kansas |
Pedigree Summary
John + 5 siblings
Gen 1 · 3 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)