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John Berger — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Berger across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 12-person household.
Age 20
b. ~1920
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Berger |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Mfg plant |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 446 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Laborer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1920 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Joseph Berger | Son | — | 16 | ~1924 |
| Anna Berger | Daughter | — | 7 | ~1933 |
| Edward Berger | Son | — | 12 | ~1928 |
| Frank Berger | Son | — | 2 | ~1938 |
| Caroline Berger | Daughter | — | 19 | ~1921 |
| Dolores Berger | Daughter | — | 1 | ~1939 |
| Peter Berger | Son | — | 10 | ~1930 |
| Jacob Berger | Son | — | 21 | ~1919 |
| John Berger | Son | — | 20 | ~1920 |
| Josephine Berger | Daughter | — | 14 | ~1926 |
| Elizabeth Berger | Spouse | — | 40 | ~1900 |
| Helen Berger | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Cook, Illinois
Son, age 10
Cook, Illinois · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Burger |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Cook-County, Illinois
Son, age 20
Cook-County, Illinois · implied b. ~1920 — 12 household members
| Surname | Berger |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Mfg plant |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 446 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 John Berger across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Berger
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Peter Berger
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Berger
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Berger
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Berger
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Berger
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Berger
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Berger
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Berger
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacob Berger
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caroline Berger
Sibling · 1940 · age 19
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 — 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-t0627-01012-00541)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Berger | 40 | Wife | — | Russia |
| 42 | Jacob Berger | 21 | Son | Machinist | Colorado |
| 43 | John Berger THIS PERSON | 20 | Son | Laborer | Colorado |
| 44 | Caroline Berger | 19 | Daughter | — | Colorado |
| 45 | Joseph Berger | 16 | Son | — | Illinois |
| 46 | Josephine Berger | 14 | Daughter | — | Illinois |
| 47 | Edward Berger | 12 | Son | — | Illinois |
| 48 | Peter Berger | 10 | Son | — | Illinois |
| 49 | Anna Marie Berger | 7 | Daughter | — | Illinois |
| 50 | Helen Berger | 5 | Daughter | — | Illinois |
| 51 | Frank Berger | 2 | Son | — | Illinois |
| 52 | Dolores Berger | 1 | Daughter | — | Illinois |
| 53 | Richard Schmidt | 60 | Head | Laborer | Germany |
| 54 | Freda Schmidt | 51 | Wife | — | Germany |
| 55 | Helen Erickson | 13 | Granddaughter | — | Illinois |
| 56 | Charles Dutter | 51 | Head | Alley Sweeper | Illinois |
| 57 | Anne Dutter | 59 | Wife | — | Germany |
| 58 | Charles Dutter | 31 | Son | Clerk | Illinois |
| 59 | Edward Dutter | 24 | Son | Clerk | Illinois |
| 60 | Gilbert Dutter | 22 | Son | Laborer | Illinois |
| 61 | Robert Dutter | 19 | Son | — | Illinois |
| 62 | George Gappers | 46 | Head | Janitor | Illinois |
| 63 | Emil Gappers | 36 | Brother | Landscaper | Illinois |
| 64 | Eugene Gruninger | 42 | Head | Upholstering | Germany |
| 65 | Lillian Gruninger | 37 | Wife | — | Illinois |
| 66 | Erwin Gruninger | 16 | Son | — | Illinois |
| 67 | Rita Gruninger | 12 | Daughter | — | Illinois |
| 68 | Elaine Gruninger | 8 | Daughter | — | Illinois |
| 69 | Frederick Gruninger | 4 | Son | — | Illinois |
| 70 | — | None | — | — | — |
| 71 | Joseph Verhaag | 46 | Head | Mail Carrier | Illinois |
| 72 | Helen Verhaag | 42 | Wife | — | Illinois |
| 73 | Rose Bluhm | 56 | Head | High School Cook | Illinois |
| 74 | John Bluhm | 25 | Son | Counterman | Illinois |
| 75 | Lillian Bluhm | 24 | Daughter | Box Maker | Illinois |
| 76 | Leo Eland | 44 | Head | Laborer | Illinois |
| 77 | Joseph Eland | 48 | Brother | Sheet Writer | Illinois |
| 78 | August Eland | 46 | Brother | Foreman | Illinois |
| 79 | Charles Reeder | 49 | Head | Fireman | Illinois |
| 80 | Lottie Reeder | 47 | Wife | — | Illinois |
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)