MF
Mary Finney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Williamson-County, Illinois
Our Model Tree links this Mary Finney across the 1930 and 1940 US Censuses in Williamson-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 5-person household.
Age 12
b. ~1928
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Williamson-County, Illinois |
| Surname | Finney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Marion |
| 1935 Residence (County) | Williamson |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 6 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Paineville |
| Est. Birth Year | ~1928 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Lydia Finney | Spouse | — | 45 | ~1895 |
| Eugene Finney | Son | — | 16 | ~1924 |
| Mary Finney | Daughter | — | 12 | ~1928 |
| Alvie Finney | Head | — | 40 | ~1900 |
| Johnny Finney | Son | — | 21 | ~1919 |
Census Appearances
1930
Williamson, Illinois
Daughter, age 1
Williamson, Illinois · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Williamson-County, Illinois
Daughter, age 12
Williamson-County, Illinois · implied b. ~1928 — 5 household members
| Surname | Finney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Marion |
| 1935 Residence (County) | Williamson |
| Industry | 0 |
| Highest Grade | 6 |
| 1935 Residence | Illinois |
| 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 Mary Finney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Finney
Daughter · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Eugene Finney
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnny Finney
Sibling · 1940 · age 21
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 — Williamson-County, Illinois
Open full size
1940 US Federal Census — Williamson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00911-00614)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillian Stone | 16 | Daughter | — | Illinois |
| 42 | Dorthella Stone | 14 | Daughter | — | Illinois |
| 43 | Irene Stone | 11 | Daughter | — | Illinois |
| 44 | W. M. Stone | 64 | Head | Laborer | Kentucky |
| 45 | Ettie Stone | 57 | Wife | — | Illinois |
| 46 | Maurine Stone | 18 | Daughter | Typist | Illinois |
| 47 | Paul Stone | 16 | Son | — | Illinois |
| 48 | Charles Mason | 37 | Head | Machine Runner | Kansas |
| 49 | Violet Mason | 34 | Wife | — | Illinois |
| 50 | Charles William Mason | 12 | Son | — | Illinois |
| 51 | Kenneth Ray Mason | 5 | Son | — | Illinois |
| 52 | Sr. John | 77 | Father | — | England |
| 53 | Jr. John | 24 | Brother | Miner | Kansas |
| 54 | James A. Cronin | 62 | Head | Miner | Illinois |
| 55 | Joe Leone | 69 | Lodger | Miner | Washington |
| 56 | Wm. Triplett | 69 | Head | Miner | Missouri |
| 57 | Ella Triplett | 59 | Wife | — | Missouri |
| 58 | Durham Thomas | 43 | Head | Laborer | Illinois |
| 59 | Ester Aline Thomas | 37 | Wife | — | Illinois |
| 60 | Freddie Ruth Thomas | 12 | Daughter | — | Illinois |
| 61 | Harold Thomas | 15 | Son | — | Illinois |
| 62 | Alvie Finney | 40 | Head | Farmer | Illinois |
| 63 | Lydia Finney | 45 | Wife | — | Illinois |
| 64 | Johnny Finney | 21 | Son | Laborer | Illinois |
| 65 | Eugene Finney | 16 | Son | Laborer | Illinois |
| 66 | Mary Finney THIS PERSON | 12 | Daughter | — | Illinois |
| 67 | Earnest Wilson | 47 | Head | Carpenter | Kentucky |
| 68 | Kate Wilson | 46 | Wife | — | Illinois |
| 69 | Henry Lee Wilson | 15 | Son | — | Illinois |
| 70 | S. W. Odum | 85 | Father-in-law | — | Illinois |
| 71 | John Marascia | 69 | Head | Miner | Italy |
| 72 | Rose Marascia | 67 | Wife | — | Italy |
| 73 | Angelo Marascia | 32 | Son | Proprietor | Illinois |
| 74 | Milma Marascia | 26 | Daughter-in-law | — | Illinois |
| 75 | John Charles Marascia | 8 | Grandson | — | Illinois |
| 76 | Harry Sanders | 31 | Head | Welder | Illinois |
| 77 | Marie Sanders | 30 | Wife | — | Illinois |
| 78 | Alice Sanders | 10 | Daughter | — | Illinois |
| 79 | Donald Ray Sanders | 4 | Son | — | Illinois |
| 80 | Norma Sue Sanders | 2 | Daughter | — | Illinois |
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)