EJ
Earl Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Earl Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Christina — first a son (b.~1908), then head of a 7-person household.
Age 32
b. ~1908
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | File clerk |
| Industry | Tile |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1266 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | File Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1908 |
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 Earl | Age | Birth yr |
|---|---|---|---|---|
| Ruth Cawne | Daughter | — | 40 | ~1900 |
| Christina Johnson | Head | — | 63 | ~1877 |
| Raymond Cawne | Other | — | 40 | ~1900 |
| Emil Elwin | Other | — | 65 | ~1875 |
| Earl Johnson | Son | — | 32 | ~1908 |
| Kenneth Cawne | Son | — | 15 | ~1925 |
| Roland Cawne | Son | — | 8 | ~1932 |
Census Appearances
1910
Cook, Illinois
Son, age 2
Cook, Illinois · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Earl A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 22
Cook, Illinois · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Earl H. E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Occupation | Engineer |
| Industry | Underwriters |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 32
Cook-County, Illinois · implied b. ~1908 — 7 household members
| Surname | Johnson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | File clerk |
| Industry | Tile |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1266 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Earl Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Johnson (~0.92 confidence) and mother Christina Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence) and mother Edith Johnson (~0.92 confidence) and father Algot Johnson (~0.92 confidence) and mother Hattie Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Johnson
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Christina Johnson
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Edith Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
Algot Johnson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Hattie Johnson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Johnson
Son · 1940 · age 32 · b. ~1908 · Illinois
★ You are viewing this record
Sibling
Kenneth Cawne
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Cawne
Sibling · 1940 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roland Cawne
Sibling · 1940 · age 8
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-t0627-00999-00604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Herman Baesler | 46 | Head | Polisher | Illinois |
| 42 | Emma Baesler | 47 | Wife | — | Illinois |
| 43 | Wayne Baesler | 8 | Son | — | Illinois |
| 44 | Ernst Negart | 32 | Head | Salesman | Germany |
| 45 | Rose Negart | 35 | Wife | — | Germany |
| 46 | Pauline Negart | 3 | Daughter | — | Illinois |
| 47 | Joan Negart | 2 | Daughter | — | Illinois |
| 48 | Thomas Nering | 59 | Head | Laborer | Illinois |
| 49 | Annabelle Nering | 58 | Wife | — | Illinois |
| 50 | Oliver Nering | 37 | Son | Packer | Illinois |
| 51 | Homer Young | 32 | Son-in-law | Salesman | Illinois |
| 52 | Margaret Young | 33 | Daughter | — | Illinois |
| 53 | Jack Young | 6 | Grandson | — | Illinois |
| 54 | Albert Moore | 64 | Head | Motorman | Illinois |
| 55 | Mary Moore | 56 | Wife | — | Minnesota |
| 56 | Lyle Moore | 27 | Son | — | Illinois |
| 57 | Lorraine Moore | 19 | Daughter | — | Illinois |
| 58 | Herman Sawusch | 59 | Head | Milk Clerk | Illinois |
| 59 | Agnes Sawusch | 54 | Wife | — | Illinois |
| 60 | John Cobb | 55 | Head | Painter | Illinois |
| 61 | Frieda Cobb | 49 | Wife | — | Illinois |
| 62 | Edna Kropp | 31 | Daughter | — | Illinois |
| 63 | Arthur Kropp | 36 | Son-in-law | Chauffeur | Illinois |
| 64 | Christina Johnson | 63 | Head | — | Sweden |
| 65 | Earl Johnson THIS PERSON | 32 | Son | File Clerk | Illinois |
| 66 | Raymond Cawne | 40 | Son-in-law | Laborer | Illinois |
| 67 | Ruth Cawne | 40 | Daughter | — | Illinois |
| 68 | Kenneth Cawne | 15 | Son | — | Illinois |
| 69 | Roland Cawne | 8 | Son | — | Illinois |
| 70 | Emil Elwin | 65 | Lodger | — | Sweden |
| 71 | Albert Hand | 54 | Head | Deposit Clerk | England |
| 72 | Mary Hand | 54 | Wife | — | England |
| 73 | Jane Lloyd | 72 | Sister | — | England |
| 74 | John Kauffman | 48 | Head | Salesman | Illinois |
| 75 | Helen Kauffman | 48 | Wife | — | Illinois |
| 76 | Jewel Kauffman | 24 | Daughter | Cashier | Illinois |
| 77 | Ann Kauffman | 23 | Daughter | — | Illinois |
| 78 | Helen Kauffman | 19 | Daughter | — | Illinois |
| 79 | Miro Vandlin | 28 | Head | Printer | Illinois |
| 80 | Jenny Vandlin | 28 | Wife | — | Illinois |
Pedigree Summary
Earl + 3 siblings
Gen 1 · 6 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)