EJ
Ethel Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ethel Johnson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Adolph & Charles — first a daughter (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ethel | Age | Birth yr |
|---|---|---|---|---|
| Ethel Johnson | Daughter | — | 26 | ~1914 |
| Adolph Johnson | Head | — | 55 | ~1885 |
| Donald Johnson | Son | — | 15 | ~1925 |
| W Johnson | Son | — | 30 | ~1910 |
| Isabelle Johnson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Cook, Illinois
Daughter, age 6
Cook, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 16
Cook, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 26
Cook-County, Illinois · implied b. ~1914 — 5 household members
| Surname | Johnson |
| Given Name | Ethel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Stenographer |
| Industry | Manufacturing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | C 2 |
| 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 Ethel Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adolph Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence) and father Adolph Johnson (~0.92 confidence) and mother Isabelle Johnson (~0.92 confidence) and mother Nellie Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adolph Johnson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Adolph Johnson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Isabelle Johnson
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Nellie Johnson
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ethel Johnson
Daughter · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
W Johnson
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Johnson
Sibling · 1940 · age 15
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-t0627-01020-00529)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth A. Pierik | 19 | Daughter | — | Illinois |
| 2 | Patricia H. Pierik | 17 | Daughter | — | Illinois |
| 3 | Joan Pierik | 11 | Daughter | — | Illinois |
| 4 | Jacquelyne Pierik | 5 | Daughter | — | Illinois |
| 5 | Theodore Noerper | 48 | Head | Service Manager | Illinois |
| 6 | Joan R. Noerper | 42 | Wife | — | Illinois |
| 7 | Theodore Noerper | 20 | Son | Clerical | Illinois |
| 8 | Marilyn Noerper | 13 | Daughter | — | Illinois |
| 9 | Lillian Martin | 35 | Sister-in-law | Bookkeeper | Illinois |
| 10 | John Martin | 30 | Brother-in-law | Clerical | Illinois |
| 11 | Adolph T. Johnson | 55 | Head | Manufacturer | Illinois |
| 12 | Isabelle Johnson | 52 | Wife | — | Illinois |
| 13 | W. Russell W. Johnson | 30 | Son | Salesman | Illinois |
| 14 | Ethel Johnson THIS PERSON | 26 | Daughter | Stenographer | Illinois |
| 15 | Donald T. Johnson | 15 | Son | — | Illinois |
| 16 | George Quentin | 60 | Head | Salesman | Illinois |
| 17 | Ruth D. Quentin | 49 | Wife | — | Ohio |
| 18 | Dorothy Quentin | 23 | Daughter | Secretary | Ohio |
| 19 | Gertrude Franks | 78 | Mother-in-law | — | Ohio |
| 20 | Robert Lutton | 40 | Head | Executive | Illinois |
| 21 | Dorothy Lutton | 41 | Wife | — | Colorado |
| 22 | Jack, Joy Hajimi|Hajini | 53 | Head | — | Ohio |
| 23 | John Johns | 58 | Head | Salesman | New York |
| 24 | Edith Johns | 58 | Wife | — | Indiana |
| 25 | J. William Johns | 31 | Son | Insurance | Indiana |
| 26 | Martin Ardell | 34 | Son-in-law | Manager | Michigan |
| 27 | Helen R. Ardell | 33 | Daughter | Cashier | Indiana |
| 28 | Laverne B. Adams | 34 | Head | Office Chief | Illinois |
| 29 | Christine Adams | 34 | Wife | — | Austria |
| 30 | Anton Borowski | 46 | Head | Optometrist | Poland |
| 31 | Martha Borowski | 47 | Wife | — | Indiana |
| 32 | Philip Mayhew | 15 | Son | — | Illinois |
| 33 | Henry S. Engelman | 44 | Head | Merchant | Michigan |
| 34 | Abram Engelman | 22 | Son | Clerk | Michigan |
| 35 | Hugh Engelman | 19 | Grandson | Office Boy | Illinois |
| 36 | Catherine Engelman | 15 | Granddaughter | Office Lady | Illinois |
| 37 | Lulu Bremington | 52 | Lodger | Office Clerk | Pennsylvania |
| 38 | Louise S. Regan | 34 | Head | Stenographer | Illinois |
| 39 | Selma Ryberg | 51 | Head | Manager | Sweden |
| 40 | Marie Ryberg | 25 | Daughter | Telephone Operator | Illinois |
Pedigree Summary
Ethel + 2 siblings
Gen 1 · 5 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)