MB
Mary Berger — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Berger across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1895), then head of a 7-person household.
Age 45
b. ~1895
Female
Spouse
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Berger |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Chicago |
| Est. Birth Year | ~1895 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Virginia Berger | Daughter | — | 19 | ~1921 |
| Nancy Berger | Daughter | — | 1 | ~1939 |
| Charles Berger | Son | — | 24 | ~1916 |
| Mary Berger | Spouse | — | 45 | ~1895 |
| Carl Berger | Head | — | 45 | ~1895 |
| Joseph Berger | Other | — | ~1940 | |
| Joseph Berger | Son | — | 22 | ~1918 |
Census Appearances
1930
Cook, Illinois
Spouse, age 35
Cook, Illinois · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Berger |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | First papers filed |
| Year of Immigration | 1910 |
| Age at First Marriage | 16 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Housework |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Cook-County, Illinois
Spouse, age 45
Cook-County, Illinois · implied b. ~1895 — 7 household members
| Surname | Berger |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| 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 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 45 · b. ~1895 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01004-00799)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Glen Anderson | 22 | Son | Operator | Illinois |
| 42 | Vernon Anderson | 22 | Son | Govt Office | Illinois |
| 43 | Frank Billeck | 43 | Head | Fireman | Illinois |
| 44 | Mae Billeck | 48 | Wife | — | Illinois |
| 45 | Margaret M. Billeck | 15 | Daughter | — | Illinois |
| 46 | Harold J. Billeck | 13 | Son | — | Illinois |
| 47 | Anna Epstein | 43 | Sister-in-law | Accountant | Illinois |
| 48 | Louise Langerhan | 72 | Head | — | Illinois |
| 49 | Emma Langerhan | 44 | Daughter | Govt Office | Indiana |
| 50 | Edith Langerhan | 40 | Daughter | Govt Office | Illinois |
| 51 | Pauline Langerhan | 38 | Daughter | Secretary | Illinois |
| 52 | Joseph Sammartino | 51 | Head | Proprietor | Italy |
| 53 | Mary Sammartino | 41 | Wife | Presser | Italy |
| 54 | John Sammartino | 11 | Son | — | Illinois |
| 55 | August Sammartino | 10 | Son | — | Illinois |
| 56 | Albert Johnson | 43 | Head | Asst. Foreman | Pennsylvania |
| 57 | Esther Johnson | 38 | Wife | — | Wisconsin |
| 58 | Raymond Johnson | 17 | Son | Messenger Boy | Illinois |
| 59 | Charlotte Johnson | 15 | Daughter | — | Illinois |
| 60 | Grace Johnson | 11 | Daughter | — | Illinois |
| 61 | Theodore Anderson | 43 | Head | Salesman | Illinois |
| 62 | Eva Anderson | 43 | Wife | — | Illinois |
| 63 | Norman Anderson | 14 | Son | — | Illinois |
| 64 | Shirley Anderson | 11 | Daughter | — | Illinois |
| 65 | Harry Mall | 33 | Head | Chauffeur | Illinois |
| 66 | Beatrice Mall | 30 | Wife | — | Illinois |
| 67 | Edwin Mall | 5 | Son | — | Illinois |
| 68 | Joyce Mall | 3 | Daughter | — | Illinois |
| 69 | Carl Berger | 45 | Head | Carpenter | Germany |
| 70 | Mary Berger THIS PERSON | 45 | Wife | — | Germany |
| 71 | Charles Berger | 24 | Son | Apprentice | Illinois |
| 72 | Joseph Berger | 22 | Son | Apprentice | Illinois |
| 73 | Virginia Berger | 19 | Daughter | — | Illinois |
| 74 | Nancy Berger | 1 | Daughter | — | Illinois |
| 75 | Joseph Berger | 0 | Grandson | — | Illinois |
| 76 | Thorleif Jenson | 44 | Head | Carpenter | Denmark |
| 77 | Esther Jenson | 44 | Wife | — | Illinois |
| 78 | Louis Jenson | 19 | Son | Apprentice | Illinois |
| 79 | Virginia Jenson | 11 | Daughter | — | Illinois |
| 80 | Rudolph Schlarp | 41 | Head | Machinist | Austria |
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)