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Jens Jensen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Audubon-County, Iowa
Our Model Tree links this Jens Jensen across the 1920, 1930 and 1940 US Censuses in Audubon-County, Iowa (XGBoost, ~Confirmed), with identified parents Jens & Elise — first a head (b.~1900), then head of a 6-person household.
Age 40
b. ~1900
Male
Head
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Audubon-County, Iowa |
| Surname | Jensen |
| Given Name | Jens B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Audubon |
| 1935 Residence (County) | Audubon |
| Additional Details | |
| Occupation | Manager |
| Industry | International Harvester Co. |
| Class of Worker | E |
| Hours Worked | 72 |
| Income (1939) | 1567 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Manager |
| Township / Ward | Audubon |
| Est. Birth Year | ~1900 |
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 |
|---|---|---|---|---|
| Hilda Jensen | Spouse | — | 36 | ~1904 |
| Howard Jensen | Son | — | 7 | ~1933 |
| Luella Jensen | Daughter | — | 5 | ~1935 |
| Jens Jensen | Head | — | 40 | ~1900 |
| James Jensen | Son | — | 3 | ~1937 |
| Laurine Jensen | Daughter | — | 9 | ~1931 |
Census Appearances
1920
Audubon, Iowa
Son, age 19
Audubon, Iowa · implied b. ~1901 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenson |
| Given Name | Jens B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farm laborer |
| Industry | Home farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Audubon, Iowa
Head, age 30
Audubon, Iowa · implied b. ~1900 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Jens B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 24 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | no |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Audubon-County, Iowa
Head, age 40
Audubon-County, Iowa · implied b. ~1900 — 6 household members
| Surname | Jensen |
| Given Name | Jens B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Audubon |
| 1935 Residence (County) | Audubon |
| Occupation | Manager |
| Industry | International Harvester Co. |
| Class of Worker | E |
| Hours Worked | 72 |
| Income (1939) | 1567 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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. Identified parents: father Jens Jenson (~0.92 confidence) and mother Elise Jenson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jens Jenson
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Elise Jenson
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jens Jensen
Head · 1940 · age 40 · b. ~1900 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Audubon-County, Iowa
Open full size
1940 US Federal Census — Audubon-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01137-00910)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norma E. Monomer | Monomer | 14 | Daughter | — | Iowa |
| 2 | Jens B. Jensen THIS PERSON | 40 | Head | Manager | Nebraska |
| 3 | Hilda M. Jensen | 36 | Wife | — | Iowa |
| 4 | Laurine A. Jensen | 9 | Daughter | — | Iowa |
| 5 | Howard L. Jensen | 7 | Son | — | Iowa |
| 6 | Luella D. Jensen | 5 | Daughter | — | Iowa |
| 7 | James D. Jensen | 3 | Son | — | Iowa |
| 8 | Lars P. Larsen | 62 | Head | — | Denmark |
| 9 | Mary A. Larsen | 62 | Wife | — | Illinois |
| 10 | Nels Jensen | 73 | Head | — | Denmark |
| 11 | Nicoline Jensen | 68 | Wife | — | Denmark |
| 12 | Johannes B. Bruun | 39 | Head | Manager And Part Owner | Denmark |
| 13 | Chrisenth M. Bruun | 34 | Wife | — | Iowa |
| 14 | Elizabeth A. Bruun | 5 | Daughter | — | Iowa |
| 15 | Ben H. R. Smith | 35 | Head | Attendant | Iowa |
| 16 | Ollivene B. Smith | 24 | Wife | — | Iowa |
| 17 | Phyllis L. Smith | 2 | Daughter | — | Iowa |
| 18 | Charles E. Delashmutt | 65 | Head | — | Iowa |
| 19 | Clara Delashmutt | 53 | Wife | Seamstress | Iowa |
| 20 | Eylun M. Haskins | 37 | Head | Truck Driver | Iowa |
| 21 | Dorothy J. Haskins | 34 | Wife | — | Iowa |
| 22 | Robert E. Haskins | 15 | Son | — | Iowa |
| 23 | Morris L. Haskins | 13 | Son | — | Iowa |
| 24 | Patricia J. Haskins | 11 | Daughter | — | Iowa |
| 25 | Wilford H. Haskins | 9 | Son | — | Iowa |
| 26 | Norma G. Haskins | 7 | Daughter | — | Iowa |
| 27 | Carol J. Haskins | 4 | Daughter | — | Iowa |
| 28 | Charles E. Haskins | 2 | Son | — | Iowa |
| 29 | Peter S. Petersen | 36 | Head | Auto-Fitter Mechanic | Iowa |
| 30 | Amanda Petersen | 33 | Wife | — | Iowa |
| 31 | Russell D. Petersen | 7 | Son | — | Iowa |
| 32 | Charlene F. Petersen | 5 | Daughter | — | Iowa |
| 33 | H. Borg-Christian | 80 | Head | — | Denmark |
| 34 | Anna Borg-Christian | 62 | Wife | — | Denmark |
| 35 | John C. Borg-Christian | 27 | Son | Milk Distributor | Iowa |
| 36 | Elsie D. Borg-Christian | 20 | Daughter | Telephone Operator | Iowa |
| 37 | William Beck | 45 | Head | Manager | Denmark |
| 38 | Carrie Beck | 46 | Wife | — | Denmark |
| 39 | Hans J. Petersen | 69 | Head | — | Denmark |
| 40 | Sena Petersen | 65 | Wife | — | Denmark |
Pedigree Summary
Jens
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)