JF
John Finley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Finley across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Finley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Industry | 0 |
| Highest Grade | G 5 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1922 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| James Finley | Son | — | 8 | ~1932 |
| William Finley | Son | — | 16 | ~1924 |
| Thomas Finley | Son | — | 12 | ~1928 |
| Rita Finley | Daughter | — | 11 | ~1929 |
| John Finley | Son | — | 18 | ~1922 |
| William Finley | Head | — | 49 | ~1891 |
| Sabina Finley | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finley |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 18
Cook-County, Illinois · implied b. ~1922 — 7 household members
| Surname | Finley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | G 5 |
| 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 John Finley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Finley
Son · 1940 · age 18 · b. ~1922 · Illinois
★ You are viewing this record
Sibling
James Finley
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Finley
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Finley
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Finley
Sibling · 1940 · age 12
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-t0627-00950-00709)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gudrun Loisis | 55 | Wife | Janitor | Norway |
| 42 | Genevieve Loisis | 23 | Daughter | Linen Room | Illinois |
| 43 | Randolph Loisis | 22 | Son | Brief Case Maker | Illinois |
| 44 | Marcelle Loisis | 19 | Daughter | — | Illinois |
| 45 | Roy Loisis | 15 | Son | — | Illinois |
| 46 | Donald Holloway | 36 | Head | Butcher | Illinois |
| 47 | Ethel O Holloway | 35 | Wife | — | Illinois |
| 48 | Louise Holloway | 10 | Daughter | — | Illinois |
| 49 | Donald Jr Holloway | 2 | Son | — | Illinois |
| 50 | William Finley | 49 | Head | — | Illinois |
| 51 | Sabina O Finley | 43 | Wife | — | Illinois |
| 52 | John Finley THIS PERSON | 18 | Son | — | Illinois |
| 53 | William Jr Finley | 16 | Son | — | Illinois |
| 54 | Thomas Finley | 12 | Son | — | Illinois |
| 55 | James Finley | 8 | Son | — | Illinois |
| 56 | Rita Finley | 11 | Daughter | — | Illinois |
| 57 | Joseph Staley | 29 | Head | Laborer | Illinois |
| 58 | Rose Staley | 26 | Wife | — | Illinois |
| 59 | La Verne Staley | 3 | Daughter | — | Illinois |
| 60 | Joseph Staley | 1 | Son | — | Illinois |
| 61 | Patricia Staley | 0 | Daughter | — | Illinois |
| 62 | Steve Finley | 23 | Head | Laborer | Illinois |
| 63 | Leva Finley | 19 | Wife | — | Iowa |
| 64 | Violet Strumbo | 49 | Head | Housekeeper | Wisconsin |
| 65 | William Strumbo | 18 | Son | — | Wisconsin |
| 66 | Beatrice Strumbo | 20 | Daughter | — | Illinois |
| 67 | Bernice Strumbo | 20 | Daughter | — | Illinois |
| 68 | Florence Strumbo | 11 | Daughter | — | Illinois |
| 69 | Charles Strumbo | 15 | Son | — | Illinois |
| 70 | Elmer Alcock | 34 | Head | Watchman | Missouri |
| 71 | Edith Alcock | 24 | Wife | — | Arkansas |
| 72 | Jerry Alcock | 4 | Son | — | Arkansas |
| 73 | James Alcock | 0 | Son | — | Illinois |
| 74 | James Bervana | 23 | Brother in law | Gas Attendant | Illinois |
| 75 | Vandine Bervana | 22 | Sister in law | — | Arkansas |
| 76 | Anton Torro | 48 | Head | Shoe Maker | Italy |
| 77 | Helen Torro | 43 | Wife | — | Michigan |
| 78 | John Torro | 20 | Son | — | Michigan |
| 79 | Joe Torro | 18 | Son | Delivery Boy | Michigan |
| 80 | Tony Torro | 16 | Son | — | Michigan |
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)