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Jens Jensen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Adair, Iowa
Our Model Tree links this Jens Jensen across the 1900, 1910, 1920 and 1930 US Censuses in Adair, Iowa (XGBoost, ~Confirmed) — first a head (b.~1861), then head of a 4-person household.
Age 69
b. ~1861
Male
Head
Born: Denmark
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Adair, Iowa |
| Surname | Jensen |
| Given Name | Jens C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 36 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Farmer |
| Industry | Stock Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Grand River Township |
| Est. Birth Year | ~1861 |
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 1930 census.
| Name | Relation to head | Relative to Jens | Age | Birth yr |
|---|---|---|---|---|
| Margaret Jensen | Daughter | — | 15 | ~1915 |
| Laura Jensen | Spouse | — | 48 | ~1882 |
| Jens Jensen | Head | — | 69 | ~1861 |
| Ernest Jensen | Son | — | 18 | ~1912 |
Census Appearances
1900
Wayne, Nebraska
Head, age 36
Wayne, Nebraska · implied b. ~1864 — 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 | 35 |
| Marital Status | Married |
| Birthplace | Denmark |
| Birth Month | Oct |
| Birth Year | 1864 |
| Year of Immigration | 1882 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1910
Pierce, Nebraska
Head, age 47
Pierce, Nebraska · implied b. ~1863 — 9 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 | 47 |
| Marital Status | Married |
| Birthplace | Denmark |
| Years Married | 15 |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Home Farm |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Adair, Iowa
Head, age 58
Adair, Iowa · implied b. ~1862 — 8 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 | 58 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Stock Farm |
| 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 | 1888 |
| Birthplace (normalized) | denmark |
1930
Adair, Iowa
Head, age 69
Adair, Iowa · implied b. ~1861 — 4 household members
| Surname | Jensen |
| Given Name | Jens C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 36 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Stock Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| 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 4 US Census years (1900, 1910, 1920 and 1930) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Jens Jensen
Head · 1930 · age 69 · b. ~1861 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Adair, Iowa
Open full size
1930 US Federal Census — Adair, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel640:0050)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jens C. Jensen THIS PERSON | 69 | Head | Farmer | Denmark |
| 52 | Laura B. Jensen | 48 | Wife | — | Iowa |
| 53 | Ernest N. Jensen | 18 | Son | Laborer | Iowa |
| 54 | Margaret L. Jensen | 15 | Daughter | — | Iowa |
| 55 | Leroy J. Gray | 49 | Head | Farmer | Iowa |
| 56 | Myrtle M. Gray | 45 | Wife | — | Iowa |
| 57 | Gerald L. Gray | 20 | Son | Laborer | Iowa |
| 58 | Raymond A. Gray | 18 | Son | — | Iowa |
| 59 | Herbert W. Buck | 43 | Head | Farmer | Iowa |
| 60 | Mary Buck | 42 | Wife | — | Iowa |
| 61 | Andrew D. Buck | 17 | Son | Student | Iowa |
| 62 | Ada Lucile Buck | 10 | Daughter | — | Iowa |
| 63 | Leslie E. Buck | 8 | Son | — | Iowa |
| 64 | Jens P. C. Jensen | 40 | Head | Farmer | Denmark |
| 65 | Anna L. Jensen | 29 | Wife | — | Iowa |
| 66 | Ruby L. Jensen | 8 | Daughter | — | Iowa |
| 67 | Kenneth A. Jensen | 6 | Son | — | Iowa |
| 68 | Alphaeus Wolfe | 44 | Head | Farmer | Iowa |
| 69 | Floretta M. Wolfe | 41 | Wife | — | Iowa |
| 70 | Virginia M. Wolfe | 19 | Daughter | Servant | Iowa |
| 71 | Russell L. Wolfe | 17 | Son | — | Iowa |
| 72 | Esther E. Wolfe | 14 | Daughter | — | Iowa |
| 73 | Orie D. Lowden | 30 | Head | Farmer | Iowa |
| 74 | Ada R. Lowden | 23 | Wife | — | Iowa |
| 75 | Billy D. Lowden | 1 | Son | — | Iowa |
| 76 | Charlie S. Weaser | 49 | Head | Farmer | Iowa |
| 77 | Emma M. Weaser | 40 | Wife | — | Ohio |
| 78 | Wilda Weaser | 17 | Daughter | — | Iowa |
| 79 | Albert A. Weaser | 16 | Son | — | Iowa |
| 80 | Velda L. Weaser | 7 | Daughter | — | Iowa |
| 81 | Charles E. Weaser | 6 | Son | — | Iowa |
| 82 | Velma M. Weaser | 5 | Daughter | — | Iowa |
| 83 | Don Ray Palmer | 29 | Head | Manager | North Dakota |
| 84 | Mary R. Palmer | 21 | Wife | — | Iowa |
| 85 | Betty J. Palmer | 3 | Daughter | — | Iowa |
| 86 | Nola M. Palmer | 0 | Daughter | — | Iowa |
| 87 | Harrison T. Fox | 50 | Head | Farmer | Iowa |
| 88 | Sadie V. Fox | 48 | Wife | — | Iowa |
| 89 | Ruth Fox | 18 | Daughter | Servant | Iowa |
| 90 | Claude R. Fox | 14 | Son | — | Iowa |
| 91 | Lloyd R. Fox | 12 | Son | — | Iowa |
| 92 | Buenos E. Harper | 27 | Head | Laborer | Iowa |
| 93 | Vera F. Harper | 27 | Wife | — | Iowa |
| 94 | Maryellen Harper | 4 | Daughter | — | Iowa |
| 95 | Jack W. Harper | 2 | Son | — | Iowa |
| 96 | William F. Lowden | 62 | Head | Farmer | Iowa |
| 97 | Dora J. Lowden | 60 | Wife | — | Iowa |
| 98 | Charles E. Ripley | 49 | Head | Laborer | Iowa |
| 99 | Minerva R. Ripley | 46 | Wife | — | Iowa |
| 100 | Virginia C. Ripley | 5 | Daughter | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)