MJ
Mary Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cloud-County, Kansas
Our Model Tree links this Mary Jensen across the 1930 and 1940 US Censuses in Cloud-County, Kansas (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cloud-County, Kansas |
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Sibley township |
| 1935 Residence (County) | Cloud |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Sibley Township |
| Est. Birth Year | ~1927 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Jensen | Daughter | — | 15 | ~1925 |
| Mary Jensen | Daughter | — | 13 | ~1927 |
| Hans Jensen | Head | — | 52 | ~1888 |
| Melvin Jensen | Son | — | 9 | ~1931 |
| Lawrence Jensen | Son | — | 23 | ~1917 |
| Ross Jensen | Son | — | 19 | ~1921 |
| Charles Jensen | Son | — | 12 | ~1928 |
| Minda Jensen | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Cloud, Kansas
Daughter, age 4
Cloud, Kansas · implied b. ~1926 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Mary Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Norway |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Cloud-County, Kansas
Daughter, age 13
Cloud-County, Kansas · implied b. ~1927 — 8 household members
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Sibley township |
| 1935 Residence (County) | Cloud |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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
Daughter · 1940 · age 13 · b. ~1927 · Kansas
★ You are viewing this record
Sibling
Ruth Jensen
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Jensen
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Jensen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ross Jensen
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Jensen
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cloud-County, Kansas
Open full size
1940 US Federal Census — Cloud-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01225-00432)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roscoe D. Lowell | 40 | Head | Farming | Kansas |
| 2 | Stella Lowell | 34 | Wife | — | Missouri |
| 3 | Clair Ramona Lowell | 10 | daughter | — | Kansas |
| 4 | Freddie Lowell | 8 | son | — | Kansas |
| 5 | Lyle Lowell | 7 | son | — | Kansas |
| 6 | Dana Lee Lowell | 5 | daughter | — | Kansas |
| 7 | Dean Lowell | 1 | son | — | Kansas |
| 8 | Gus D. Gerlaw | 50 | Head | Farming | Kansas |
| 9 | Lucy Gerlaw | 45 | Wife | — | Kansas |
| 10 | Opal Gerlaw | 25 | daughter | Teacher | Kansas |
| 11 | Fern Gerlaw | 21 | daughter | — | Kansas |
| 12 | Lucille Gerlaw | 3 | daughter | — | Kansas |
| 13 | Marion D. Decker | 76 | Head | Farming | Ohio |
| 14 | Ruth Decker | 37 | daughter | — | Kansas |
| 15 | Mrs. J. N. Wilson | 73 | Head | — | Pennsylvania |
| 16 | William Kimmel | 70 | Head | Farming | Illinois |
| 17 | Delia Kimmel | 64 | Wife | — | Kansas |
| 18 | Elsie Kimmel | 41 | daughter | — | Kansas |
| 19 | Carey Diehl | 65 | Head | Trained Nurse | Illinois |
| 20 | Alice Diehl | 63 | Wife | Farming | Kansas |
| 21 | Loyd D. Hemmers | 36 | Head | Farming | Kansas |
| 22 | Alice Hemmers | 34 | Wife | — | Kansas |
| 23 | Richard Lee Hemmers | 11 | son | — | Kansas |
| 24 | Eloise Hemmers | 9 | daughter | — | Kansas |
| 25 | Larry Hemmers | 7 | son | — | Kansas |
| 26 | Irena Hemmers | 5 | daughter | — | Kansas |
| 27 | Hans D. Jensen | 52 | Head | Farming | Kansas |
| 28 | Minda Jensen | 47 | Wife | — | Oslo Norway |
| 29 | Lawrence Jensen | 23 | son | Laborer | Kansas |
| 30 | Ross Jensen | 19 | son | — | Kansas |
| 31 | Ruth Jensen | 15 | daughter | — | Kansas |
| 32 | Mary Jensen THIS PERSON | 13 | daughter | — | Kansas |
| 33 | Charles Jensen | 12 | son | — | Kansas |
| 34 | Melvin Jensen | 9 | son | — | Kansas |
| 35 | William D. Weitzel | 52 | Head | Farming | Missouri |
| 36 | Hazel Weitzel | 40 | Wife | — | Kansas |
| 37 | Leo D. Brooks | 33 | Head | Farming | Kansas |
| 38 | Martha Brooks | 28 | Wife | — | Kansas |
| 39 | Edgar D. Spratlen | 61 | Head | Dairyman | Kansas |
| 40 | Lalah Spratlen | 57 | Wife | — | Kansas |
Related Census Records
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)