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Jens Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Iowa
Our Model Tree links this Jens Jensen across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 6-person household.
Age 57
b. ~1883
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Iowa |
| Surname | Jensen |
| Given Name | Jens E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Grant Township |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farming |
| Township / Ward | Grant Township |
| Est. Birth Year | ~1883 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jens | Age | Birth yr |
|---|---|---|---|---|
| Jens Jensen | Head | — | 57 | ~1883 |
| Hattie Jensen | Spouse | — | 56 | ~1884 |
| Alvin Jensen | Son | — | 23 | ~1917 |
| Evelyn Jensen | Daughter | — | 18 | ~1922 |
| Clarice Jensen | Daughter | — | 22 | ~1918 |
| Marion Jensen | Son | — | 26 | ~1914 |
Census Appearances
1920
Winnebago, Iowa
Head, age 37
Winnebago, Iowa · implied b. ~1883
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Jensen |
| Given Name | Jens |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Winnebago, Iowa
Head, age 47
Winnebago, Iowa · implied b. ~1883 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jens E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 30 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | own Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Winnebago-County, Iowa
Head, age 57
Winnebago-County, Iowa · implied b. ~1883 — 6 household members
| Surname | Jensen |
| Given Name | Jens E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Grant Township |
| 1935 Residence (County) | Winnebago |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Jens Jensen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Jens Jensen
Head · 1940 · age 57 · b. ~1883 · 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 — Winnebago-County, Iowa
Open full size
1940 US Federal Census — Winnebago-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01213-00231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George D. Steen | 38 | Head | Farming | Iowa |
| 42 | Minnie Steen | 43 | Wife | — | Iowa |
| 43 | Harold R. Steen | 5 | Son | — | Iowa |
| 44 | Bruno R. B. Bruns | 72 | Head | Farming | Germany |
| 45 | Angelina Bruns | 67 | Wife | — | Germany |
| 46 | John N. Bruns | 25 | Son | Farm Labor | Iowa |
| 47 | Doris F. Bruns | 23 | Daughter | — | Iowa |
| 48 | Jens E. Jensen THIS PERSON | 57 | Head | Farming | Iowa |
| 49 | Hattie B. Jensen | 56 | Wife | — | Minnesota |
| 50 | Marion J. Jensen | 26 | Son | Farm Labor | Iowa |
| 51 | Alvin J. Jensen | 23 | Son | Farm Labor | Iowa |
| 52 | Clarice J. Jensen | 22 | Daughter | School Teacher | Iowa |
| 53 | Evelyn L. Jensen | 18 | Daughter | School Teacher | Iowa |
| 54 | Jim D. De Baer | 63 | Head | Farming | Iowa |
| 55 | Jane De Baer | 62 | Wife | — | Iowa |
| 56 | George De Baer | 38 | Son | Lawyer | Iowa |
| 57 | Elmer De Baer | 25 | Son | Farm Labor | Iowa |
| 58 | Jennie R. De Baer | 19 | Daughter | School Teacher | Iowa |
| 59 | Viola M. (Ab) De Baer | 17 | Daughter | — | Iowa |
| 60 | Leo V. Flinn | 40 | Head | Farming | Iowa |
| 61 | Josephine M. Flinn | 40 | Wife | — | Iowa |
| 62 | Eugene G. Flinn | 12 | Son | — | Iowa |
| 63 | Michael F. Flinn | 10 | Son | — | Iowa |
| 64 | Claire A. Flinn | 9 | Daughter | — | Iowa |
| 65 | James L. Flinn | 7 | Son | — | Iowa |
| 66 | Clement J. Flinn | 6 | Son | — | Iowa |
| 67 | Edward M. Flinn | 5 | Son | — | Iowa |
| 68 | Ben B. Rising | 67 | Head | Farming | Germany |
| 69 | Fred J. De Baer | 30 | Head | Farming | Iowa |
| 70 | Emma J. De Baer | 28 | Wife | — | Iowa |
| 71 | Marlene E. De Baer | 4 | Daughter | — | Iowa |
| 72 | Henry J. Hofbauer | 33 | Head | Farming | Iowa |
| 73 | Alice Hofbauer | 34 | Wife | — | Iowa |
| 74 | Alvin L. Hofbauer | 12 | Son | — | Iowa |
| 75 | Harold H. Hofbauer | 11 | Son | — | Iowa |
| 76 | Carol J. Hofbauer | 3 | Daughter | — | Iowa |
| 77 | Peter J. Durban | 60 | Head | Farming | Holland |
| 78 | Mary C. Durban | 50 | Wife | — | Iowa |
| 79 | Gerald R. Durban | 30 | Son | Farm Labor | Iowa |
| 80 | Eppie D. Nelson | 47 | Head | Farming | 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)