DC
Dorothy Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Dorothy Campbell across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Alvin & Glen — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Campbell |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Jacqueline Campbell | Daughter | — | 9 | ~1931 |
| Glen Campbell | Head | — | 49 | ~1891 |
| Jessie Campbell | Daughter | — | 15 | ~1925 |
| Dorothy Campbell | Daughter | — | 21 | ~1919 |
| Gertrude Campbell | Spouse | — | 45 | ~1895 |
| Marjorie Campbell | Daughter | — | 13 | ~1927 |
Census Appearances
1920
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Michigan |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 21
Cook-County, Illinois · implied b. ~1919 — 6 household members
| Surname | Campbell |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | Hs 4 |
| 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 Dorothy Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Campbell (~0.92 confidence) and father Glen Campbell (~0.92 confidence) and mother Gertrude Campbell (~0.92 confidence) and mother Gertrude Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Campbell
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Glen Campbell
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Gertrude Campbell
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Gertrude Campbell
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Campbell
Daughter · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Jessie Campbell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacqueline Campbell
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Campbell
Sibling · 1940 · age 13
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-t0627-00940-00569)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nino Lovets | 24 | Head | Truck Driver | Illinois |
| 42 | Allen Lovets | 18 | Son | — | Illinois |
| 43 | Morris Lovets | 18 | Son | — | Illinois |
| 44 | Louis Mikel | 37 | Head | Grinder | Austria |
| 45 | Ursula Mikel | 37 | Wife | — | Austria |
| 46 | Charles Straboly | 37 | Head | Mill Mechanic | Hungary |
| 47 | Mary Straboly | 32 | Wife | — | Hungary |
| 48 | Dorothy Straboly | 11 | Daughter | — | Illinois |
| 49 | George Denny | 37 | Head | Stock Checker | Illinois |
| 50 | Jeanette Denny | 32 | Wife | — | Illinois |
| 51 | Jeanette Denny | 12 | Daughter | — | Illinois |
| 52 | William Denny | 8 | Son | — | Illinois |
| 53 | Walter Heide | 33 | Head | Service Station Attendant | Ohio |
| 54 | Fern Heide | 31 | Wife | — | Illinois |
| 55 | Michel Heide | 1 | Son | — | Illinois |
| 56 | June Heide | 0 | Daughter | — | Illinois |
| 57 | Nels Tereson | 51 | Head | Painter | Illinois |
| 58 | Selma Tereson | 46 | Wife | — | Sweden |
| 59 | Barbara Tereson | 10 | Daughter | — | Illinois |
| 60 | Roger Tereson | 10 | Son | — | Illinois |
| 61 | Donald Tereson | 8 | Son | — | Illinois |
| 62 | William Tereson | 4 | Son | — | Illinois |
| 63 | Frank Meyerchick | 39 | Head | Machinist | Hungary |
| 64 | Stella Meyerchick | 38 | Wife | — | Illinois |
| 65 | Esther Meyerchick | 16 | Daughter | — | Illinois |
| 66 | Alice Meyerchick | 14 | Daughter | — | Illinois |
| 67 | Frank Jr Meyerchick | 9 | Son | — | Illinois |
| 68 | Donald Meyerchick | 8 | Son | — | Illinois |
| 69 | Paul Beemermann | 50 | Head | Tinner | Illinois |
| 70 | Anna Beemermann | 82 | Mother | — | Germany |
| 71 | Henry Link | 36 | Head | Mailman | Ohio |
| 72 | Amelia Link | 26 | Wife | — | Illinois |
| 73 | Allen Link | 3 | Son | — | Illinois |
| 74 | Karen Link | 1 | Daughter | — | Illinois |
| 75 | Glen Campbell | 49 | Head | Printing Estimator | Illinois |
| 76 | Gertrude Campbell | 45 | Wife | — | Michigan |
| 77 | Dorothy Campbell THIS PERSON | 21 | Daughter | — | Illinois |
| 78 | Jessie Campbell | 15 | Daughter | Bookkeeping | Illinois |
| 79 | Marjorie Campbell | 13 | Daughter | — | Illinois |
| 80 | Jacqueline Campbell | 9 | Daughter | — | Illinois |
Pedigree Summary
Dorothy + 3 siblings
Gen 1 · 4 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)