CJ
Christine Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Christine Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Christine — first a daughter (b.~1898), then head of a 3-person household.
Age 42
b. ~1898
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Christine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Secretary |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1150 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Secretary |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1898 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Christine | Age | Birth yr |
|---|---|---|---|---|
| Christine Johnson | Head | — | 76 | ~1864 |
| Christine Johnson | Daughter | — | 42 | ~1898 |
| Olof Johnson | Son | — | 40 | ~1900 |
Census Appearances
1920
Cook, Illinois
Daughter, age 21
Cook, Illinois · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Christine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Year of Immigration | 1920 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Stenographer |
| Industry | Packing House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 32
Cook, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Christine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Stenographer |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 42
Cook-County, Illinois · implied b. ~1898 — 3 household members
| Surname | Johnson |
| Given Name | Christine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Secretary |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1150 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Christine Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Johnson (~0.92 confidence) and mother Christine Johnson (~0.92 confidence) and mother Ida Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Johnson
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Christine Johnson
b. ~1864
Source mother
● Household
· direct · ~0.92
Mother
Ida Johnson
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Christine Johnson
Daughter · 1940 · age 42 · b. ~1898 · Illinois
★ You are viewing this record
Sibling
Olof Johnson
Sibling · 1940 · age 40
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-t0627-00952-00527)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Frankel | 57 | Wife | — | Illinois |
| 42 | Louis Martial | 37 | Head | Traveling Salesman | New York |
| 43 | Helen Martial | 33 | Wife | — | Illinois |
| 44 | Richard Martial | 14 | Son | — | Illinois |
| 45 | Angus Macdonald | 33 | Head | Furnace Man | Scotland |
| 46 | Margaret Macdonald | 23 | Wife | — | Illinois |
| 47 | Angus Jr. Macdonald | 1 | Son | — | Illinois |
| 48 | Margaret Barker | 57 | Mother-in-law | — | Scotland |
| 49 | Edwin Kockelman | 40 | Head | Cost Accountant | Minnesota |
| 50 | Lillian Kockelman | 37 | Wife | — | Illinois |
| 51 | Phyllis Kockelman | 14 | Daughter | — | Illinois |
| 52 | Lucille Kockelman | 12 | Daughter | — | Illinois |
| 53 | Lillian Kockelman | 7 | Daughter | — | Illinois |
| 54 | Charles Rohrer | 39 | Head | Fireman | Illinois |
| 55 | Margaret Rohrer | 38 | Wife | — | Illinois |
| 56 | Jack Rohrer | 17 | Son | — | Illinois |
| 57 | Margaret Rohrer | 9 | Daughter | — | Illinois |
| 58 | Eleanor Rohrer | 6 | Daughter | — | Illinois |
| 59 | James Guthrie | 27 | Head | Clerk | Illinois |
| 60 | Jane Guthrie | 25 | Wife | — | Illinois |
| 61 | David Guthrie | 2 | Son | — | Illinois |
| 62 | Edward G. Barker | 37 | Head | Salesman | England |
| 63 | Mildred E. Barker | 37 | Wife | — | Illinois |
| 64 | John E. Barker | 4 | Son | — | Illinois |
| 65 | Katherine Jackson | 72 | Mother-in-law | — | Germany |
| 66 | Nettie Hartwig | 50 | Head | — | Indiana |
| 67 | George W. Leigh | 41 | Son-in-law | Guard | Michigan |
| 68 | Margaret Leigh | 24 | Daughter | — | Indiana |
| 69 | Constantine Backer | 45 | Head | Tavern Keeper | Lithuania |
| 70 | Helen Backer | 45 | Wife | Seamstress | Lithuania |
| 71 | William Wallin | 35 | Head | Tavern Keeper | Minnesota |
| 72 | Bernice Wallin | 29 | Daughter | — | Illinois |
| 73 | Warren Wallin | 5 | Grandson | — | Illinois |
| 74 | Christine Johnson | 76 | Head | — | Sweden |
| 75 | Christine Johnson THIS PERSON | 42 | Daughter | Secretary | Illinois |
| 76 | Olof Johnson | 40 | Son | Timekeeper | Illinois |
| 77 | Sol M. Abelson | 36 | Head | Medical Doctor | Illinois |
| 78 | Elizabeth Abelson | 30 | Wife | Clinic Nurse | Indiana |
| 79 | Jane Abelson | 6 | Daughter | — | Indiana |
| 80 | David Abelson | 4 | Son | — | Illinois |
Pedigree Summary
Christine + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)