DD
Dorothy Dunn — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Dorothy Dunn across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Frank & Gertrude — first a daughter (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Dunn |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Secretary |
| Industry | Lumber Yard |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Secretary |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Dunn | Daughter | — | 27 | ~1913 |
| Frank Dunn | Head | — | 64 | ~1876 |
| Gertrude Dunn | Spouse | — | 56 | ~1884 |
| Dorothy Dunn | Daughter | — | 32 | ~1908 |
Census Appearances
1920
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Dorothy G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 20
Cook, Illinois · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Occupation | Stenographer |
| Industry | Mail Order House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 32
Cook-County, Illinois · implied b. ~1908 — 4 household members
| Surname | Dunn |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Secretary |
| Industry | Lumber Yard |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-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 Dorothy Dunn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Dunn (~0.92 confidence) and mother Gertrude Dunn (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Dunn
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Gertrude Dunn
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Dunn
Daughter · 1940 · age 32 · b. ~1908 · Illinois
★ You are viewing this record
Sibling
Gertrude Dunn
Sibling · 1940 · age 27
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-t0627-00938-00867)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ann Jung | 33 | Wife | — | Illinois |
| 42 | Daniel C. Jung | 1 | Son | — | Illinois |
| 43 | Michael J. Daly | 65 | Head | Meat Cutter | Michigan |
| 44 | Mary Daly | 53 | Wife | — | Illinois |
| 45 | Irving Glickman | 34 | Head | Attorney | Illinois |
| 46 | Neva Glickman | 32 | Wife | — | Illinois |
| 47 | Barbara Glickman | 9 | Daughter | — | Illinois |
| 48 | Helaine Glickman | 5 | Daughter | — | Illinois |
| 49 | Steve Doth | 39 | Head | Manager | Hungary |
| 50 | Rose Doth | 41 | Wife | Helper | Hungary |
| 51 | Steve J. Doth | 21 | Son | Usher | Illinois |
| 52 | Rosemary Doth | 10 | Daughter | — | Illinois |
| 53 | Carl Johnson | 44 | Head | Milk Driver | Sweden |
| 54 | Stella Johnson | 40 | Wife | — | Illinois |
| 55 | Carl Jr. Johnson | 10 | Son | — | Illinois |
| 56 | Clarence G. Johnson | 7 | Son | — | Illinois |
| 57 | Frank Dunn | 64 | Head | Locomotive Engineer | Michigan |
| 58 | Gertrude Dunn | 56 | Wife | — | Illinois |
| 59 | Dorothy Dunn THIS PERSON | 32 | Daughter | Secretary | Illinois |
| 60 | Gertrude Dunn | 27 | Daughter | Secretary | Illinois |
| 61 | Michael Kozolowski | 59 | Head | Car Builder | Ukraine |
| 62 | Anna Kozolowski | 49 | Wife | Maid | Ukraine |
| 63 | Helen Kozolowski | 28 | Daughter | Office Clerk | Illinois |
| 64 | Herbert Carroll | 30 | Head | Photo Engraver | Illinois |
| 65 | Geraldine Carroll | 28 | Wife | — | Iowa |
| 66 | Gerald Carroll | 5 | Son | — | Illinois |
| 67 | William Carroll | 0 | Son | — | Illinois |
| 68 | Tiburcio Ciprian | 53 | Head | Proprietor | Spain |
| 69 | Alida Ciprian | 55 | Wife | — | Michigan |
| 70 | Arthur Ciprian | 28 | Son | Lithographer | Illinois |
| 71 | Ralph Ciprian | 18 | Son | Delivery Boy | Illinois |
| 72 | Myrtle Ciprian | 14 | Daughter | — | Illinois |
| 73 | Earl Case | 43 | Head | Shop Foreman | Illinois |
| 74 | Jeanette Case | 42 | Wife | — | Missouri |
| 75 | Donald Verkler | 40 | Head | Police Officer | Illinois |
| 76 | Adela Verkler | 32 | Wife | — | Germany |
| 77 | William Verkler | 1 | Son | — | New Jersey |
| 78 | — | None | — | — | — |
| 79 | Paul Lofvert | 46 | Head | Mechanical Engineer | Sweden |
| 80 | Anna Lofvert | 42 | Wife | — | Sweden |
Related Census Records
Pedigree Summary
Dorothy + 1 sibling
Gen 1 · 2 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)