MJ
Mary Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cedar-County, Nebraska
Our Model Tree links this Mary Jensen across the 1920, 1930 and 1940 US Censuses in Cedar-County, Nebraska (XGBoost, ~Confirmed) — first a spouse (b.~1867), then head of a 4-person household.
Age 73
b. ~1867
Female
Spouse
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cedar-County, Nebraska |
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Precinct 3 |
| 1935 Residence (County) | Cedar |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Precinct 3 |
| Est. Birth Year | ~1867 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Jensen | Head | — | 76 | ~1864 |
| Alphonse Jensen | Son | — | 36 | ~1904 |
| William Jensen | Son | — | 29 | ~1911 |
| Mary Jensen | Spouse | — | 73 | ~1867 |
Census Appearances
1920
Cedar, Nebraska
Spouse, age 50
Cedar, Nebraska · implied b. ~1870 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1930
Cedar, Nebraska
Spouse, age 61
Cedar, Nebraska · implied b. ~1869 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jansen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 23 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Cedar-County, Nebraska
Spouse, age 73
Cedar-County, Nebraska · implied b. ~1867 — 4 household members
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Precinct 3 |
| 1935 Residence (County) | Cedar |
| Naturalization Status | Naturalized |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Mary 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
Mary Jensen
Spouse · 1940 · age 73 · b. ~1867 · Nebraska
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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 — Cedar-County, Nebraska
Open full size
1940 US Federal Census — Cedar-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02240-00049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Father Herman | None | M | — | — |
| 42 | Joseph Havlamant|Havlamaut | 46 | Head | Farmer | Nebraska |
| 43 | Gertrude Havlamant|Havlamaut | 43 | Wife | — | Nebraska |
| 44 | Edward Havlamant|Havlamaut | 17 | Son | Farmer | Nebraska |
| 45 | Robert Havlamant|Havlamaut | 15 | Son | Farmer | Nebraska |
| 46 | Raymond Havlamant|Havlamaut | 13 | Son | — | Nebraska |
| 47 | Rita Havlamant|Havlamaut | 8 | Daughter | — | Nebraska |
| 48 | Mary Havlamant|Havlamaut | 4 | Daughter | — | Nebraska |
| 49 | Anita Havlamant|Havlamaut | 2 | Daughter | — | Nebraska |
| 50 | Ignatius Jasper | 36 | Head | Farmer | Nebraska |
| 51 | Frank Schmitt | 73 | Head | Farmer | Iowa |
| 52 | Elizabeth Schmitt | 67 | Wife | — | Nebraska |
| 53 | John Jensen | 76 | Head | Farmer | Germany |
| 54 | Mary Jensen THIS PERSON | 73 | Wife | — | Germany |
| 55 | Alphonse Jensen | 36 | Son | Farmer | Nebraska |
| 56 | William Jensen | 29 | Son | Farmer | Nebraska |
| 57 | Joseph Kast | 64 | Head | Farmer | Nebraska |
| 58 | Fred Kast | 32 | Son | Farmer | Nebraska |
| 59 | Frances Kast | 24 | Daughter | — | Nebraska |
| 60 | Kenneth Kast | 0 | Grandson | — | So. Dakota |
| 61 | Sigismund Locker | 60 | Head | Farmer | Nebraska |
| 62 | Mary Locker | 55 | Wife | — | Iowa |
| 63 | Loretta Locker | 23 | Daughter | — | Nebraska |
| 64 | Victor Locker | 19 | Son | Farmer | Nebraska |
| 65 | Rose Locker | 18 | Daughter | — | Nebraska |
| 66 | Robert Locker | 16 | Son | Farmer | Nebraska |
| 67 | Henry Mauch | 63 | Head | — | Illinois |
| 68 | Edward Wittehaus | 49 | Head | Farmer | Nebraska |
| 69 | Cecilia Wittehaus | 52 | Wife | — | Nebraska |
| 70 | Lawrence Wittehaus | 15 | Son | Farmer | Nebraska |
| 71 | Magdalene Wittehaus | 12 | Daughter | — | Nebraska |
| 72 | Mike Birrenkott | 56 | Head | Farmer | So. Dakota |
| 73 | Clara Birrenkott | 43 | Wife | — | Nebraska |
| 74 | Mary Alice Birrenkott | 15 | Daughter | — | Nebraska |
| 75 | Theresa Ann Birrenkott | 10 | Daughter | — | Nebraska |
| 76 | Martin Locker | 27 | Head | Farmer | Nebraska |
| 77 | Frances Locker | 22 | Wife | — | Nebraska |
| 78 | Vernon Locker | 1 | Son | — | Nebraska |
| 79 | George Kast | 54 | Head | Farmer | Nebraska |
| 80 | Catherine Kast | 49 | Wife | — | Nebraska |
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)