JK
John Koch — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cloud-County, Kansas
Our Model Tree links this John Koch across the 1930 and 1940 US Censuses in Cloud-County, Kansas (XGBoost, ~Confirmed) — first a son (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cloud-County, Kansas |
| Surname | Koch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Elk Township |
| 1935 Residence (County) | Cloud |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farmer |
| Township / Ward | Elk Township |
| Est. Birth Year | ~1887 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Koch | Daughter | — | 58 | ~1882 |
| Regina Koch | Daughter | — | 39 | ~1901 |
| Mary Koch | Head | — | 79 | ~1861 |
| John Koch | Son | — | 53 | ~1887 |
| Genevieve Koch | Daughter | — | 37 | ~1903 |
Census Appearances
1930
Cloud, Kansas
Son, age 42
Cloud, Kansas · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Koch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Cloud-County, Kansas
Son, age 53
Cloud-County, Kansas · implied b. ~1887 — 5 household members
| Surname | Koch |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Elk Township |
| 1935 Residence (County) | Cloud |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Koch across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Koch
Son · 1940 · age 53 · b. ~1887 · Kansas
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Sibling
Mary Koch
Sibling · 1940 · age 58
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Regina Koch
Sibling · 1940 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Koch
Sibling · 1940 · age 37
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 — Cloud-County, Kansas
Open full size
1940 US Federal Census — Cloud-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01225-00307)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henry Bergstrom | 52 | Head | Farmer | Kansas |
| 42 | May Bergstrom | 46 | Wife | — | Kansas |
| 43 | Clair Bergstrom | 18 | Son | Farmer | Kansas |
| 44 | Eldon Bergstrom | 5 | Son | — | Kansas |
| 45 | Gene Bergstrom | 6 | Son | — | Kansas |
| 46 | Ray Bricket | 41 | Head | Farmer | Kansas |
| 47 | Mary Bricket | 31 | Wife | — | Kansas |
| 48 | Vern Bricket | 16 | Son | Farm Laborer | Kansas |
| 49 | Fred Payne | 57 | Head | Retired Farmer | Kansas |
| 50 | Jessie Payne | 61 | Wife | — | Kansas |
| 51 | Eugene Ouillette | 45 | Head | Farmer | Kansas |
| 52 | Delores Ouillette | 35 | Wife | — | Kansas |
| 53 | Aldemore Ouillette | 11 | Son | — | Kansas |
| 54 | Clementine Ouillette | 8 | Daughter | — | Kansas |
| 55 | Marion Ouillette | 5 | Daughter | — | Kansas |
| 56 | Harry Cheesbro | 54 | Head | Farmer | Kansas |
| 57 | Marlin Cheesbro | 21 | Son | Farmer | Kansas |
| 58 | Ruth Cheesbro | 17 | Daughter | — | Kansas |
| 59 | Edward Payne | 65 | Head | Farmer | Illinois |
| 60 | Addie Payne | 63 | Wife | — | Iowa |
| 61 | Julius Langton | 75 | Head | Farmer | Illinois |
| 62 | Edna Langton | 49 | Daughter | — | Kansas |
| 63 | Margaret Langton | 29 | Daughter | — | Kansas |
| 64 | Madeline Langton | 23 | Daughter | Plumming | Kansas |
| 65 | Clarence Underwood | 31 | Head | Farmer | Kansas |
| 66 | Myrtle Underwood | 32 | Wife | — | Kansas |
| 67 | Jackie Underwood | 3 | Son | — | Kansas |
| 68 | Jerry Underwood | 1 | Son | — | Kansas |
| 69 | Mary Koch | 79 | Head | — | Germany |
| 70 | Mary Koch | 58 | Daughter | — | Kansas |
| 71 | John Koch THIS PERSON | 53 | Son | Farmer | Kansas |
| 72 | Regina Koch | 39 | Daughter | — | Kansas |
| 73 | Genevieve Koch | 37 | Daughter | — | Kansas |
| 74 | Marion H. Reavis | 59 | Head | Farmer | Kansas |
| 75 | Estella Reavis | 58 | Wife | — | Kansas |
| 76 | Esther Reavis | 16 | Daughter | — | Kansas |
| 77 | Gilbert Pickard | 59 | Head | Farmer | Iowa |
| 78 | Ruth Pickard | 58 | Wife | — | Kansas |
| 79 | Clarence Christian | 58 | Head | Farmer | Kansas |
| 80 | Marie Christian | 54 | Wife | — | Kansas |
Related Census Records
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)