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Jens Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Emmet-County, Iowa
Our Model Tree links this Jens Jensen across the 1920, 1930 and 1940 US Censuses in Emmet-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Emmet-County, Iowa |
| Surname | Jensen |
| Given Name | Jens C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Jack Creek Twp |
| 1935 Residence (County) | Emmet |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Operator |
| Township / Ward | Jack Creek Twp |
| 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 Jens | Age | Birth yr |
|---|---|---|---|---|
| Earl Jensen | Son | — | 14 | ~1926 |
| Henry Jensen | Son | — | 12 | ~1928 |
| Melaine Jensen | Spouse | — | 48 | ~1892 |
| Arnold Jensen | Son | — | 9 | ~1931 |
| Jens Jensen | Head | — | 53 | ~1887 |
Census Appearances
1920
Clackamas, Oregon
Head, age 32
Clackamas, Oregon · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jens C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1905 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Finisher |
| Industry | Cement |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Denmark |
| Year of Naturalization | 1912 |
| Birthplace (normalized) | denmark |
1930
Providence, Rhode …
Head, age 43
Providence, Rhode Island · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jens C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1895 |
| Age at First Marriage | 30 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Wood-pattern maker |
| Industry | Machine shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Emmet-County, Iowa
Head, age 53
Emmet-County, Iowa · implied b. ~1887 — 5 household members
| Surname | Jensen |
| Given Name | Jens C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Jack Creek Twp |
| 1935 Residence (County) | Emmet |
| Naturalization Status | Naturalized |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 53 · b. ~1887 · 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 — Emmet-County, Iowa
Open full size
1940 US Federal Census — Emmet-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01160-00350)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John George Paugh | 1 | Son | — | Iowa |
| 2 | Katie B. Mueller | 78 | Mother | — | Illinois |
| 3 | Joseph W. Vahlsing | 39 | Head | Operator | Iowa |
| 4 | Evelyn Mae Vahlsing | 29 | Wife | — | Iowa |
| 5 | John Gordon Vahlsing | 3 | Son | — | Iowa |
| 6 | Manly Anderson | 25 | Laborer | Farm Hand | North Dakota |
| 7 | William A. Tough | 27 | Laborer | Farm Laborer | Illinois |
| 8 | Eda Beatrice Eda | 73 | Head | — | Illinois |
| 9 | Lawrence S. Birkland | 53 | Head | Operator | Illinois |
| 10 | Anne Birkland | 51 | Wife | — | Iowa |
| 11 | Lloyd Birkland | 21 | Son | Farm Hand | Iowa |
| 12 | Allen Birkland | 15 | Son | Farm Hand | Iowa |
| 13 | Adolph H. Meyer | 38 | Head | Operator | Iowa |
| 14 | Esther Meyer | 30 | Wife | — | Iowa |
| 15 | Dale Christensen | 21 | Laborer | Farm Hand | South Dakota |
| 16 | John C. Bosold | 53 | Head | Operator | Illinois |
| 17 | Anna C. Bosold | 54 | Wife | — | Iowa |
| 18 | Jean M. Bosold | 21 | Daughter | — | Iowa |
| 19 | Mary Ellen Bosold | 17 | Daughter | — | Iowa |
| 20 | Jens C. Jensen THIS PERSON | 53 | Head | Operator | Denmark |
| 21 | Melaine Jensen | 48 | Wife | — | Iowa |
| 22 | Henry Jensen | 12 | Son | Farm Hand | Iowa |
| 23 | Earl Jensen | 14 | Son | Farm Hand | Iowa |
| 24 | Arnold Jensen | 9 | Son | — | Iowa |
| 25 | Lawrence A. Anderson | 25 | Head | Farm Hand | Minnesota |
| 26 | Margaret Anderson | 22 | Wife | — | Minnesota |
| 27 | Muriel Anderson | 3 | Daughter | — | Minnesota |
| 28 | Janet Anderson | 2 | Daughter | — | Minnesota |
| 29 | Donna Anderson | 1 | Daughter | — | Minnesota |
| 30 | Denny Ray Anderson | 0 | Son | — | Iowa |
| 31 | Harry D. Jensen | 24 | Head | Operator | Iowa |
| 32 | Mabel Jensen | 22 | Wife | — | Iowa |
| 33 | Donald Harry Jensen | 0 | Son | — | Iowa |
| 34 | George W. Meyer | 43 | Head | Operator | Iowa |
| 35 | Edith Meyer | 36 | Wife | — | Iowa |
| 36 | Bernard Meyer | 15 | Son | — | Iowa |
| 37 | Lyle Meyer | 12 | Son | — | Iowa |
| 38 | Ardith Meyer | 11 | Daughter | — | Iowa |
| 39 | Jens C. Gammelgaard | 43 | Head | Operator | Iowa |
| 40 | Thomas Gammelgaard | 12 | Son | — | 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)