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Frank Dunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Dunn across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Dunn |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Locomotive Engineer |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Locomotive Engineer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1876 |
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 Frank | Age | Birth yr |
|---|---|---|---|---|
| Frank Dunn | Head | — | 64 | ~1876 |
| Gertrude Dunn | Spouse | — | 56 | ~1884 |
| Gertrude Dunn | Daughter | — | 27 | ~1913 |
| Dorothy Dunn | Daughter | — | 32 | ~1908 |
Census Appearances
1920
Cook, Illinois
Head, age 42
Cook, Illinois · implied b. ~1878 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Michigan |
| Occupation | Engineer |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Cook, Illinois
Head, age 54
Cook, Illinois · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 31 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Michigan |
| Occupation | Engineer |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Cook-County, Illinois
Head, age 64
Cook-County, Illinois · implied b. ~1876 — 4 household members
| Surname | Dunn |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Locomotive Engineer |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Frank Dunn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Frank Dunn
Head · 1940 · age 64 · b. ~1876 · Illinois
★ You are viewing this record
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 THIS PERSON | 64 | Head | Locomotive Engineer | Michigan |
| 58 | Gertrude Dunn | 56 | Wife | — | Illinois |
| 59 | Dorothy Dunn | 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
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)