MJ
Mary Jensen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lapeer-County, Michigan
Our Model Tree links this Mary Jensen across the 1930 and 1940 US Censuses in Lapeer-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lapeer-County, Michigan |
| Surname | Jensen |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Burnside Township |
| 1935 Residence (County) | Lapeer |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Burnside Township |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Louise Jensen | Daughter | — | 10 | ~1930 |
| Helen Jensen | Daughter | — | 16 | ~1924 |
| Gladyce Jensen | Daughter | — | 8 | ~1932 |
| Mary Jensen | Daughter | — | 14 | ~1926 |
| Elsie Jensen | Daughter | — | 12 | ~1928 |
| Lawrence Jensen | Head | — | 53 | ~1887 |
| Broke Jensen | Son | — | 20 | ~1920 |
| Edward Jensen | Son | — | 15 | ~1925 |
| Dorothy Jensen | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Lapeer, Michigan
Daughter, age 4
Lapeer, Michigan · implied b. ~1926 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Austria |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Lapeer-County, Michigan
Daughter, age 14
Lapeer-County, Michigan · implied b. ~1926 — 9 household members
| Surname | Jensen |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Burnside Township |
| 1935 Residence (County) | Lapeer |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 14 · b. ~1926 · Michigan
★ You are viewing this record
Sibling
Broke Jensen
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Jensen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Jensen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladyce Jensen
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Jensen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Jensen
Sibling · 1940 · age 15
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 — Lapeer-County, Michigan
Open full size
1940 US Federal Census — Lapeer-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01777-00477)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Mccumons | 72 | Head | — | Michigan |
| 2 | Robert Mccumons | 14 | Grandson | — | Michigan |
| 3 | Charles Moline | 65 | Head | — | Canada-Eng |
| 4 | Isabell Moline | 59 | Wife | — | Canada-Eng |
| 5 | Lois Moline | 19 | Daughter | — | Michigan |
| 6 | John Moline | 28 | Head | Farmer | Michigan |
| 7 | Rosella Moline | 20 | Wife | — | Michigan |
| 8 | Lawrence Jensen | 53 | Head | Farmer | Canada-Eng |
| 9 | Dorothy Jensen | 47 | Wife | — | Michigan |
| 10 | Broke Jensen | 20 | Son | Laborer | Michigan |
| 11 | Helen Jensen | 16 | Daughter | — | Michigan |
| 12 | Edward Jensen | 15 | Son | — | Michigan |
| 13 | Mary Ann Jensen THIS PERSON | 14 | Daughter | — | Michigan |
| 14 | Elsie Jensen | 12 | Daughter | — | Michigan |
| 15 | Louise Jensen | 10 | Daughter | — | Michigan |
| 16 | Gladyce Jensen | 8 | Daughter | — | Michigan |
| 17 | Fred Able | 51 | Head | Farmer | Michigan |
| 18 | Martha Able | 43 | Wife | — | Michigan |
| 19 | Nelda Able | 14 | Daughter | — | Michigan |
| 20 | Viola Able | 12 | Daughter | — | Michigan |
| 21 | Eugene Able | 8 | Son | — | Michigan |
| 22 | Beverly Able | 5 | Daughter | — | Michigan |
| 23 | Shirley Able | 3 | Daughter | — | Michigan |
| 24 | Ernest Ragatz | 46 | Head | Farmer | Michigan |
| 25 | Theresa Ragatz | 45 | Wife | — | Michigan |
| 26 | Ernest Ragatz | 17 | Son | Laborer | Michigan |
| 27 | Mable Ragatz | 15 | Daughter | — | Michigan |
| 28 | Kenneth Gordine | 63 | Head | Farmer | Canada-Eng |
| 29 | Maude Gordine | 59 | Wife | — | Michigan |
| 30 | Clarence Gordine | 32 | Son | Laborer | Michigan |
| 31 | Kenneth Gordine | 18 | Son | — | Michigan |
| 32 | Henry Baker | 69 | Head | — | Michigan |
| 33 | Louella Baker | 56 | Wife | — | Michigan |
| 34 | Joy Baker | 14 | Daughter | — | Michigan |
| 35 | Gertrude Mclane | 59 | Head | — | Michigan |
| 36 | Alfred Gordine | 46 | Head | Farmer | Michigan |
| 37 | Irene Gordine | 44 | Wife | — | Michigan |
| 38 | Ola Jean Gordine | 15 | Daughter | — | Michigan |
| 39 | Rosaline Gordine | 8 | Daughter | — | Michigan |
| 40 | Johnny Gordine | 2 | Son | — | Michigan |
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)