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Jens Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Eau-Claire-County, Wisconsin
Our Model Tree links this Jens Jensen across the 1920, 1930 and 1940 US Censuses in Eau-Claire-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 4-person household.
Age 75
b. ~1865
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Eau-Claire-County, Wisconsin |
| Surname | Jensen |
| Given Name | Jens P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Bergen |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Machinist |
| Industry | Mfg Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Norway |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Machinist |
| Township / Ward | Eau Claire |
| Est. Birth Year | ~1865 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jens | Age | Birth yr |
|---|---|---|---|---|
| Jens Jensen | Head | — | 75 | ~1865 |
| Anna Jensen | Spouse | — | 66 | ~1874 |
| Victor Jensen | Son | — | 37 | ~1903 |
| Franklyn Jensen | Son | — | 24 | ~1916 |
Census Appearances
1920
New London, …
Head, age 55
New London, Connecticut · implied b. ~1865 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jens P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Norway |
| Year of Naturalization | 1886 |
| Birthplace (normalized) | norway |
1930
Eau Claire, …
Head, age 65
Eau Claire, Wisconsin · implied b. ~1865 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jens P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 32 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Laborer |
| Industry | Furniture factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Eau-Claire-County, Wisconsin
Head, age 75
Eau-Claire-County, Wisconsin · implied b. ~1865 — 4 household members
| Surname | Jensen |
| Given Name | Jens P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Bergen |
| Naturalization Status | Naturalized |
| Occupation | Machinist |
| Industry | Mfg Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Norway |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 3 locations, using XGBoost record linkage.
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This person
Anchor record
Jens Jensen
Head · 1940 · age 75 · b. ~1865 · Wisconsin
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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 — Eau-Claire-County, Wisconsin
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1940 US Federal Census — Eau-Claire-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04477-00580)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Peter Vanos | 9 | Son | — | Wisconsin |
| 42 | Naughtie Sareen | 7 | Daughter | — | Wisconsin |
| 43 | Eliza Baily | 45 | Servant | Housekeeper | Wisconsin |
| 44 | Gustav Bomfeldt | 36 | Head | Clergyman | Wisconsin |
| 45 | Vivian Bomfeldt | 30 | Wife | Housewife | Iowa |
| 46 | Joanne Bomfeldt | 6 | Daughter | — | Minnesota |
| 47 | Marie Bomfeldt | 3 | Daughter | — | Wisconsin |
| 48 | Jens P. Jensen THIS PERSON | 75 | Head | Machinist | Norway |
| 49 | Anna Jensen | 66 | Wife | Housewife | Norway |
| 50 | Victor H. Jensen | 37 | Son | Clerk | Eau Claire |
| 51 | Franklyn Jensen | 24 | Son | Clerk | Eau Claire |
| 52 | May Roselack | 41 | Head | Salesman | Texas |
| 53 | Marion Roselack | 37 | Wife | Housewife | Illinois |
| 54 | John Roselack | 15 | Son | — | Eau Claire |
| 55 | Gretchen Roselack | 13 | Daughter | — | Eau Claire |
| 56 | Maxwell Harper | 48 | Head | Teacher | Cassville |
| 57 | Glenvogel Harper | 22 | Son | Cutting Mach | Merrillan |
| 58 | Edwin Anderson | 46 | Head | Cabinet Maker | Eau Claire |
| 59 | Verona Anderson | 37 | Wife | Housewife | Eau Claire |
| 60 | Dorothy Anderson | 12 | Daughter | — | Eau Claire |
| 61 | Emil Roselack | 63 | Head | Manager | Milwaukee |
| 62 | Margaret Roselack | 61 | Wife | Housewife | Milwaukee |
| 63 | Albert Hartzell | 31 | Head | Salesman | Jim Falls |
| 64 | Marie Hartzell | 25 | Wife | Housewife | Eau Claire |
| 65 | Thomas Allen Hartzell | 0 | Son | — | Eau Claire |
| 66 | John J. Haines | 37 | Head | Mechanic | Eau Claire |
| 67 | Lois Haines | 32 | Wife | Housewife | Eau Claire |
| 68 | John Jr. Haines | 10 | Son | — | Chicago |
| 69 | Robert Haines | 9 | Son | — | Eau Claire |
| 70 | Mary Haines | 7 | Daughter | — | Eau Claire |
| 71 | Wann Haines | 5 | Son | — | Wisconsin |
| 72 | Jerome Haines | 4 | Son | — | Wisconsin |
| 73 | Kenneth Haines | 2 | Son | — | Wisconsin |
| 74 | Philip Haines | 0 | Son | — | Wisconsin |
| 75 | Margaret Dodge | 19 | Servant | Domestic | Eau Claire |
| 76 | Connell Clasput | 72 | Head | Carpenter | Eau Claire |
| 77 | Mary Clasput | 54 | Wife | Housewife | Arkansas |
| 78 | Evelyn Clasput | 21 | Daughter | Saleslady | Eau Claire |
| 79 | Roy Clasput | 19 | Son | — | Eau Claire |
| 80 | Hartwick Baya | 35 | Head | Serviceman | Eau Claire |
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)