MJ
Mary Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Douglas-County, Nebraska
Our Model Tree links this Mary Jensen across the 1930 and 1940 US Censuses in Douglas-County, Nebraska (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 11-person household.
Age 40
b. ~1900
Female
Spouse
Born: Czechoslovakia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Nebraska |
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | Omaha City |
| 1935 Residence (County) | Douglas |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
| Township / Ward | Omaha City |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joan Jensen | Daughter | — | 4 | ~1936 |
| Mary Jensen | Daughter | — | 8 | ~1932 |
| Evelyn Jensen | Daughter | — | 21 | ~1919 |
| Margaret Jensen | Daughter | — | 5 | ~1935 |
| Eleanor Jensen | Daughter | — | 19 | ~1921 |
| Morris Jensen | Head | — | 46 | ~1894 |
| Eugene Jensen | Son | — | 17 | ~1923 |
| Richard Jensen | Son | — | 15 | ~1925 |
| Joseph Jensen | Son | — | 7 | ~1933 |
| Morris Jensen | Son | — | 10 | ~1930 |
| Mary Jensen | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Douglas, Nebraska
Spouse, age 31
Douglas, Nebraska · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 17 |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Bohemian |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
1940
Douglas-County, Nebraska
Spouse, age 40
Douglas-County, Nebraska · implied b. ~1900 — 11 household members
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | Omaha City |
| 1935 Residence (County) | Douglas |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jensen
Spouse · 1940 · age 40 · b. ~1900 · 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 — Douglas-County, Nebraska
Open full size
1940 US Federal Census — Douglas-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02272-00365)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Morris Jensen | 46 | Head | Shipping Clerk | Nebraska |
| 42 | Mary Jensen THIS PERSON | 40 | Wife | — | Czechoslovakia |
| 43 | Evelyn Jensen | 21 | Daughter | Laborer | Nebraska |
| 44 | Eleanor Jensen | 19 | Daughter | Clerk | Nebraska |
| 45 | Eugene Jensen | 17 | Son | — | Nebraska |
| 46 | Richard Jensen | 15 | Son | — | Nebraska |
| 47 | Morris Jr Jensen | 10 | Son | — | Nebraska |
| 48 | Mary Ann Jensen | 8 | Daughter | — | Nebraska |
| 49 | Joseph Jensen | 7 | Son | — | Nebraska |
| 50 | Margaret Jensen | 5 | Daughter | — | Nebraska |
| 51 | Joan Jensen | 4 | Daughter | — | Nebraska |
| 52 | Peter Mickells | 35 | Head | Clerk | Nebraska |
| 53 | Gabriel Mickells | 31 | Wife | — | Belgium |
| 54 | Donald Mickells | 10 | Son | — | Nebraska |
| 55 | Helen Mickells | 8 | Daughter | — | Nebraska |
| 56 | Dorothy Mickells | 3 | Daughter | — | Nebraska |
| 57 | Leo Donohue | 26 | Head | Clerk | Nebraska |
| 58 | Ann Donohue | 23 | Wife | Clerk | Nebraska |
| 59 | Lyle Shull | 49 | Head | Switchman | Iowa |
| 60 | Jenny Shull | 48 | Wife | — | Colorado |
| 61 | Dale Monteen | 25 | Lodger | Clerk | Nebraska |
| 62 | Fred Toner | 44 | Head | Manager | Rhode Island |
| 63 | Mary Toner | 40 | Wife | Maid | Nebraska |
| 64 | Roland Toner | 18 | Son | — | Nebraska |
| 65 | Caramae Toner | 11 | Daughter | — | Nebraska |
| 66 | Mary Marshall | 65 | Mother-in-law | — | Iowa |
| 67 | Joseph Shepoka | 41 | Head | Butcher | Nebraska |
| 68 | Donna Shepoka | 37 | Wife | Butcher | Nebraska |
| 69 | Helen Shepoka | 20 | Daughter | Beauty Operator | Nebraska |
| 70 | Genevieve Shepoka | 19 | Daughter | Elevator Operator | Nebraska |
| 71 | Roland Shepoka | 16 | Son | — | Nebraska |
| 72 | Maurice Diggins | 46 | Head | Butcher | Nebraska |
| 73 | Margaret Diggins | 40 | Wife | — | Nebraska |
| 74 | Mary Ellen Diggins | 19 | Daughter | — | Nebraska |
| 75 | Margaret Diggins | 17 | Daughter | — | Nebraska |
| 76 | Rita Diggins | 13 | Daughter | — | Nebraska |
| 77 | Patricia Diggins | 8 | Daughter | — | Nebraska |
| 78 | James Diggins | 6 | Son | — | Nebraska |
| 79 | Maurice Jr Diggins | 1 | Son | — | Nebraska |
| 80 | Francis Burke | 42 | Brother-in-law | Laborer | 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)