JK
John Kruse — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clinton-County, Iowa
Our Model Tree links this John Kruse across the 1930 and 1940 US Censuses in Clinton-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 7-person household.
Age 60
b. ~1880
Male
Head
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Iowa |
| Surname | Kruse |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Deep Creek Twp |
| 1935 Residence (County) | Clinton |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 75 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Occupation | Farmer |
| Township / Ward | Deep Creek Twp |
| Est. Birth Year | ~1880 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Kruse | Son | — | 28 | ~1912 |
| Emil Kruse | Son | — | 25 | ~1915 |
| Virtus Kruse | Son | — | 24 | ~1916 |
| John Kruse | Head | — | 60 | ~1880 |
| John Harms | Other | — | 61 | ~1879 |
| Emma Kruse | Spouse | — | 54 | ~1886 |
| Marvin Kruse | Son | — | 17 | ~1923 |
Census Appearances
1930
Clinton, Iowa
Head, age 50
Clinton, Iowa · implied b. ~1880 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kruse |
| Given Name | Johannes |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1885 |
| Age at First Marriage | 24 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Clinton-County, Iowa
Head, age 60
Clinton-County, Iowa · implied b. ~1880 — 7 household members
| Surname | Kruse |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Deep Creek Twp |
| 1935 Residence (County) | Clinton |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 75 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Kruse across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Kruse
Head · 1940 · age 60 · b. ~1880 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clinton-County, Iowa
Open full size
1940 US Federal Census — Clinton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01151-00007)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wayne Mommsen | 16 | Son | — | Iowa |
| 2 | Lois Mommsen | 13 | Daughter | — | Iowa |
| 3 | Glen Mommsen | 11 | Son | — | Iowa |
| 4 | August Andresen | 72 | Head | — | Germany |
| 5 | Sabina Andresen | 68 | Wife | — | Germany |
| 6 | Erwin Schoening | 43 | Head | Farmer | Iowa |
| 7 | Ella Schoening | 44 | Wife | — | Iowa |
| 8 | Marjorie Schoening | 18 | Daughter | — | Iowa |
| 9 | Shirley Schoening | 16 | Daughter | — | Iowa |
| 10 | Audrey Schoening | 14 | Daughter | — | Iowa |
| 11 | Lee Schoening | 6 | Son | — | Iowa |
| 12 | Erwin Jensen | 24 | Hired Hand | Farm Laborer | Iowa |
| 13 | Alfred J. Hafubier | 41 | Head | Farmer | Iowa |
| 14 | Clara Hafubier | 38 | Wife | — | Iowa |
| 15 | Dolores Hafubier | 15 | Daughter | — | Iowa |
| 16 | Vera Hafubier | 13 | Daughter | — | Iowa |
| 17 | Wm Hafubier | 71 | Father | Farmer | Iowa |
| 18 | Minna Hafubier | 64 | Mother | — | Germany |
| 19 | James Williams | 9 | Nephew | — | Iowa |
| 20 | Florence Williams | 5 | Niece | — | Iowa |
| 21 | Arthur Rohweder | 49 | Head | Farmer | Iowa |
| 22 | Emma Rohweder | 45 | Wife | — | Iowa |
| 23 | Lavera Rohweder | 17 | Daughter | — | Iowa |
| 24 | John Kacinski | 24 | Head | Farm Laborer | Iowa |
| 25 | Arlene Kacinski | 21 | Wife | — | Iowa |
| 26 | Walden Schultz | 26 | Head | Farmer | Iowa |
| 27 | Marion Schultz | 20 | Wife | — | Iowa |
| 28 | Carol Sue Schultz | 1 | Daughter | — | Iowa |
| 29 | John C. Kruse THIS PERSON | 60 | Head | Farmer | Germany |
| 30 | Emma Kruse | 54 | Wife | — | Iowa |
| 31 | John Kruse | 28 | Son | Truck Driver | Iowa |
| 32 | Emil Kruse | 25 | Son | Farm Laborer | Iowa |
| 33 | Virtus Kruse | 24 | Son | Farm Laborer | Iowa |
| 34 | Marvin Kruse | 17 | Son | — | Iowa |
| 35 | John Harms | 61 | Brother in Law | — | Iowa |
| 36 | Frank Peska | 36 | Head | Farm Laborer | Germany |
| 37 | Emma Peska | 32 | Wife | — | Iowa |
| 38 | Herman Johansen | 35 | Head | Farmer | Iowa |
| 39 | Elenora Johansen | 27 | Wife | — | Iowa |
| 40 | Yvonne Johansen | 3 | Daughter | — | Iowa |
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)