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John Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this John Jensen across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 6-person household.
Age 51
b. ~1889
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Council Bluffs City |
| 1935 Residence (County) | Pottawattamie |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Decorator |
| Industry | Paint & wall paper |
| Class of Worker | OA |
| Hours Worked | 40 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Decorator |
| Township / Ward | Council Bluffs City |
| Est. Birth Year | ~1889 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Jensen | Head | — | 51 | ~1889 |
| Jacob Jensen | Other | — | 78 | ~1862 |
| Harlan Jensen | Son | — | 21 | ~1919 |
| Lester Jensen | Son | — | 15 | ~1925 |
| Roger Jensen | Son | — | 17 | ~1923 |
| Minnie Jensen | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Pottawattamie, Iowa
Head, age 32
Pottawattamie, Iowa · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1912 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Carpenter |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Year of Naturalization | 1917 |
| Birthplace (normalized) | denmark |
1930
Pottawattamie, Iowa
Head, age 42
Pottawattamie, Iowa · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1912 |
| Age at First Marriage | 24 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Laborer |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Pottawattamie-County, Iowa
Head, age 51
Pottawattamie-County, Iowa · implied b. ~1889 — 6 household members
| Surname | Jensen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Council Bluffs City |
| 1935 Residence (County) | Pottawattamie |
| Naturalization Status | Naturalized |
| Occupation | Decorator |
| Industry | Paint & wall paper |
| Class of Worker | OA |
| Hours Worked | 40 |
| Highest Grade | Hs 4 |
| 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 John 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
John Jensen
Head · 1940 · age 51 · b. ~1889 · 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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01198-00550)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elsie Krutsky | 40 | Head | Stenographer | Nebraska |
| 42 | Marnette Krutsky | 13 | Daughter | — | Iowa |
| 43 | Doris Coffin | 37 | Head | Teacher | Nebraska |
| 44 | Richard S. Townsend | 37 | Head | Superintendent | Nebraska |
| 45 | Le Verne Townsend | 29 | Wife | Manager | Nebraska |
| 46 | Ray L. Leytham | 28 | Head | — | Nebraska |
| 47 | Henrietta Leytham | 60 | Wife | — | Nebraska |
| 48 | Hazel Savage | 31 | Head | Teacher | Illinois |
| 49 | Carol Simmonson | 36 | Lodger | Teacher | Nebraska |
| 50 | Rosa Mae Milne | 62 | Housekeeper | Housekeeper | Illinois |
| 51 | Leslie Milne | 21 | Lodger | — | Iowa |
| 52 | John J. Haverick | 82 | Head | — | Rhode Island |
| 53 | Joseph Roders | 75 | Head | — | Russia |
| 54 | Tilliee Roders | 70 | Wife | — | Russia |
| 55 | Barney Markowitz | 72 | Lodger | — | Russia |
| 56 | John Jensen THIS PERSON | 51 | Head | Decorator | Denmark |
| 57 | Minnie Jensen | 49 | Wife | — | Iowa |
| 58 | Harlan Jensen | 21 | Son | Helper | Iowa |
| 59 | Roger Jensen | 17 | Son | — | Iowa |
| 60 | Lester Jensen | 15 | Son | — | Iowa |
| 61 | Jacob Jensen | 78 | Father | — | Denmark |
| 62 | Christopher C. Case | 55 | Head | — | Virginia |
| 63 | Elizabeth Case | 39 | Wife | — | Arkansas |
| 64 | Leland Case | 20 | Son | Salesman | Iowa |
| 65 | Jack (Jr) Case | 20 | Grandson | — | Iowa |
| 66 | Amelia Fowler | 62 | Head | — | Germany |
| 67 | Ethel Fowler | 32 | Daughter | Telephone Operator | Iowa |
| 68 | Thomas Jones | 23 | Head | — | Missouri |
| 69 | Ellen Jones | 18 | Wife | — | England |
| 70 | Daniel Swing | 28 | Head | Checker | Iowa |
| 71 | Ruth Swing | 29 | Wife | Stenographer | Iowa |
| 72 | E. Melgorge Shober | 55 | Head | — | Norway |
| 73 | Richard Shober | 19 | Son | Salesman | Iowa |
| 74 | Margaret Bybee | 54 | Head | Laundress | Iowa |
| 75 | Alfred Bybee | 36 | Son | Laborer | Iowa |
| 76 | Nora Bybee | 34 | Daughter-in-law | — | Iowa |
| 77 | Almora Bybee | 5 | Granddaughter | — | Iowa |
| 78 | Marion Bybee | 1 | Grandson | — | Nebraska |
| 79 | Paul R. Brackney | 43 | Head | Bookkeeper | Iowa |
| 80 | Merna Brackney | 42 | Wife | — | 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)