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Mary Berger — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oliver-County, North Dakota
Our Model Tree links this Mary Berger across the 1930 and 1940 US Censuses in Oliver-County, North Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1903), then head of a 8-person household.
Age 37
b. ~1903
Female
Spouse
Born: North Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Oliver-County, North Dakota |
| Surname | Berger |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Oliver |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Township 14284 |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Raymond Berger | Son | — | 9 | ~1931 |
| Agnes Berger | Daughter | — | 4 | ~1936 |
| John Berger | Son | — | 11 | ~1929 |
| Rose Berger | Daughter | — | 15 | ~1925 |
| Gatandgatard Berger | Head | — | 41 | ~1899 |
| Mary Berger | Spouse | — | 37 | ~1903 |
| Joseph Berger | Son | — | 13 | ~1927 |
| Rufus Berger | Son | — | 17 | ~1923 |
Census Appearances
1930
Oliver, North …
Other, age 27
Oliver, North Dakota · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Berger |
| Given Name | Mary M. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 19 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Oliver-County, North …
Spouse, age 37
Oliver-County, North Dakota · implied b. ~1903 — 8 household members
| Surname | Berger |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Oliver |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Berger across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Berger
Spouse · 1940 · age 37 · b. ~1903 · North Dakota
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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 — Oliver-County, North Dakota
Open full size
1940 US Federal Census — Oliver-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03008-00816)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tillie Eisenbraun | 17 | Daughter | Maid | North Dakota |
| 42 | Peter Eisenbraun | 35 | Head | Farmer | Russia |
| 43 | Myrtle Eisenbraun | 31 | Wife | — | North Dakota |
| 44 | Arlene Eisenbraun | 7 | Daughter | — | North Dakota |
| 45 | Gatand|Gatard Berger | 41 | Head | Farmer | Russia |
| 46 | Mary Berger THIS PERSON | 37 | Wife | — | North Dakota |
| 47 | Rufus Berger | 17 | Son | Labor | North Dakota |
| 48 | Rose Berger | 15 | Daughter | — | North Dakota |
| 49 | Joseph Berger | 13 | Son | — | North Dakota |
| 50 | John Berger | 11 | Son | — | North Dakota |
| 51 | Raymond Berger | 9 | Son | — | North Dakota |
| 52 | Agnes Berger | 4 | Daughter | — | North Dakota |
| 53 | Mike Berger | 23 | Head | Farmer | North Dakota |
| 54 | Katie Berger | 24 | Wife | — | North Dakota |
| 55 | Mike Jr. Berger | 0 | Son | — | North Dakota |
| 56 | Regina Berger | 9 | Daughter | — | North Dakota |
| 57 | Freda Berger | 8 | Son | — | North Dakota |
| 58 | Julia Berger | 5 | Daughter | — | North Dakota |
| 59 | Lawrence Berger | 4 | Son | — | North Dakota |
| 60 | E. M. Albers | 53 | Head | Farmer | Illinois |
| 61 | Mable Albers | 49 | Wife | Carrier Mail | Minnesota |
| 62 | Joyce Albers | 14 | Daughter | — | North Dakota |
| 63 | Gordon Albers | 12 | Son | — | North Dakota |
| 64 | Dewey Albers | 8 | Son | — | North Dakota |
| 65 | Donald Albers | 6 | Son | — | North Dakota |
| 66 | Henry Henty | 43 | Head | Farmer | South Dakota |
| 67 | Alma Henty | 43 | Wife | — | North Dakota |
| 68 | Frankie Henty | 6 | Son | — | North Dakota |
| 69 | Henry Bornemann | 43 | Head | Farmer | North Dakota |
| 70 | Emma Bornemann | 35 | Wife | — | North Dakota |
| 71 | Norma Bornemann | 13 | Daughter | — | North Dakota |
| 72 | Verna Bornemann | 12 | Daughter | — | North Dakota |
| 73 | Earl Bornemann | 10 | Son | — | North Dakota |
| 74 | Lawrence Bornemann | 8 | Son | — | North Dakota |
| 75 | Martin Bornemann | 6 | Son | — | North Dakota |
| 76 | Esther Bornemann | 3 | Daughter | — | North Dakota |
| 77 | Elaine Bornemann | 1 | Daughter | — | North Dakota |
| 78 | George E. Albers | 60 | Head | Farmer | Illinois |
| 79 | William Wolf | 45 | Head | Farmer | North Dakota |
| 80 | Frances Wolf | 29 | Wife | — | Washington |
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)