JJ
Jens Jensen — 1940 US Census Record
Linked across censuses1940 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) — first a head (b.~1893), then head of a 5-person household.
Age 47
b. ~1893
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Audubon-County, Iowa |
| Surname | Jensen |
| Given Name | Jens P |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Exira Town |
| 1935 Residence (County) | Audubon |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Manager |
| Industry | Exira Creamery |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 2400 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Manager |
| Township / Ward | Exira Town |
| Est. Birth Year | ~1893 |
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 |
|---|---|---|---|---|
| Jens Jensen | Head | — | 47 | ~1893 |
| Herbert Jensen | Son | — | 10 | ~1930 |
| Shirley Jensen | Daughter | — | 13 | ~1927 |
| Caroline Jensen | Spouse | — | 43 | ~1897 |
| Donald Jensen | Son | — | 15 | ~1925 |
Census Appearances
1920
O Brien, …
Head, age 28
O Brien, Iowa · implied b. ~1892 — 4 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 | 28 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1910 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| 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 | 1916 |
| Birthplace (normalized) | denmark |
1930
Audubon, Iowa
Head, age 38
Audubon, Iowa · implied b. ~1892 — 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 | 38 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1915 |
| Age at First Marriage | 24 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Butter Maker |
| Industry | Creamery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Veteran | yes WW |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Audubon-County, Iowa
Head, age 47
Audubon-County, Iowa · implied b. ~1893 — 5 household members
| Surname | Jensen |
| Given Name | Jens P |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Exira Town |
| 1935 Residence (County) | Audubon |
| Naturalization Status | Naturalized |
| Occupation | Manager |
| Industry | Exira Creamery |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 2400 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| 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.
Show:
This person
Anchor record
Jens Jensen
Head · 1940 · age 47 · b. ~1893 · 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-t0627-01137-00801)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Palm | 38 | roomer | Grading | Iowa |
| 2 | Andrew C Wells | 64 | head | Farm Manager | Illinois |
| 3 | Mary J Wells | 57 | wife | — | Iowa |
| 4 | Mattie J Minner | 40 | head | Proprietor | Iowa |
| 5 | Ethel Minner | 47 | wife | — | Iowa |
| 6 | Elizabeth Bison | 76 | Mother in law | — | Illinois |
| 7 | Ingvold Barb | 65 | head | Carpenter | Germany |
| 8 | Minnie Barb | 66 | wife | — | Iowa |
| 9 | Bessie Barb | 34 | daughter | Clerk | Iowa |
| 10 | Clara Hanson | 41 | head | Seamstress | Iowa |
| 11 | Mildred Hanson | 17 | daughter | N.Y.A. | Iowa |
| 12 | Virginia Hanson | 16 | daughter | — | Iowa |
| 13 | Charlene Hanson | 13 | daughter | — | Iowa |
| 14 | Charles Hanson | 13 | son | — | Iowa |
| 15 | Mary Ann Hanson | 11 | daughter | — | Iowa |
| 16 | Alice Jane Hanson | 8 | daughter | — | Iowa |
| 17 | Thomas Newell | 59 | head | Day Labor | Iowa |
| 18 | Mary Newell | 59 | wife | — | Iowa |
| 19 | D. Lis Newell | 13 | daughter | — | Iowa |
| 20 | Oscar Fowler | 68 | head | Retired | Iowa |
| 21 | — | None | — | — | — |
| 22 | Frank H Backous | 72 | head | Retired | Iowa |
| 23 | Clarissa Backous | 67 | wife | — | Iowa |
| 24 | Ronald Backous | 28 | son | Farming | Iowa |
| 25 | Mattie Backous | 22 | daughter in law | — | Iowa |
| 26 | Ruth Joan Backous | 3 | granddaughter | — | Iowa |
| 27 | Carrie Backous | 22 | daughter in law | — | Iowa |
| 28 | Carol Backous | 3 | grandson | — | Iowa |
| 29 | Jens P Jensen THIS PERSON | 47 | head | Manager | Denmark |
| 30 | Caroline Jensen | 43 | wife | — | Iowa |
| 31 | Donald Jensen | 15 | son | — | Iowa |
| 32 | Shirley Jensen | 13 | daughter | — | Iowa |
| 33 | Herbert Lee Jensen | 10 | son | — | Iowa |
| 34 | Ida Adelia Krogh | 60 | head | — | Michigan |
| 35 | Raymond Anderson | 45 | head | Day Marshal | Iowa |
| 36 | Laverna Anderson | 17 | daughter | — | Iowa |
| 37 | — | None | — | — | — |
| 38 | Harold Schwab | 26 | head | Tank Wagon | Iowa |
| 39 | Doris Schwab | 25 | wife | — | Iowa |
| 40 | Charles Schwab | 4 | 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)