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Mary Finn — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Finn across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 6-person household.
Age 37
b. ~1893
Female
Spouse
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Finn |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 17 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1893 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Finn | Son | — | 13 | ~1917 |
| Marion Finn | Daughter | — | 18 | ~1912 |
| Mary Finn | Spouse | — | 37 | ~1893 |
| Bernadette Finn | Daughter | — | 17 | ~1913 |
| Vivian Finn | Daughter | — | 15 | ~1915 |
| Patrick Finn | Head | — | 41 | ~1889 |
Census Appearances
1920
Cook, Illinois
Spouse, age 27
Cook, Illinois · implied b. ~1893 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finn |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Spouse, age 37
Cook, Illinois · implied b. ~1893 — 6 household members
| Surname | Finn |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 17 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| 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 Finn across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Finn
Spouse · 1930 · age 37 · b. ~1893 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel445:0203)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer Edman | 32 | Head | Undertaker | Illinois |
| 2 | Clara Edman | 31 | Wife | — | Illinois |
| 3 | Frank J Graham | 37 | Head | Sales Manager | Texas |
| 4 | Josephine C Graham | 31 | Wife | — | Illinois |
| 5 | Marilyn Graham | 1 | Daughter | — | Illinois |
| 6 | Arthur Buck | 43 | Head | Clerk | Illinois |
| 7 | Emily Buck | 35 | Wife | — | Illinois |
| 8 | Mary A Daugherty | 63 | Head | — | New York |
| 9 | Thomas M Daugherty | 24 | Son | Salesman | Illinois |
| 10 | Margaret Daugherty | 20 | Daughter | Clerical | Illinois |
| 11 | William J Stewart | 50 | Head | Bookkeeper | Ireland-North |
| 12 | Margaret Stewart | 48 | Wife | — | Ireland-North |
| 13 | William J Stewart | 21 | Son | Accountant | Ireland-North |
| 14 | Patrick Morrison | 49 | Head | Chauffeur | Ireland-Free State |
| 15 | Teresa Morrison | 40 | Wife | — | Ireland-Free State |
| 16 | William Morrison | 12 | Son | — | Illinois |
| 17 | Margaret M Morrison | 10 | Daughter | — | Illinois |
| 18 | Virginia M Morrison | 6 | Daughter | — | Illinois |
| 19 | Theresa Morrison | 4 | Daughter | — | Illinois |
| 20 | Michael Morrison | 40 | Brother | — | Ireland-Free State |
| 21 | Patrick Finn | 41 | Head | Truck Driver | Ireland-Free State |
| 22 | Mary E Finn THIS PERSON | 37 | Wife | — | Illinois |
| 23 | Marion B Finn | 18 | Daughter | Stenographer | Illinois |
| 24 | Bernadette Finn | 17 | Daughter | Stenographer | Illinois |
| 25 | Vivian M Finn | 15 | Daughter | — | Illinois |
| 26 | John E Finn | 13 | Son | — | Illinois |
| 27 | Bridget Sheehan | 53 | Head | Matron | Ireland-Free State |
| 28 | Catherine Sheehan | 25 | Daughter | Saleswoman | Illinois |
| 29 | Thomas Sheehan | 22 | Son | Clerk | Illinois |
| 30 | Elizabeth Sheehan | 20 | Daughter | Clerk | Illinois |
| 31 | William Sheehan | 14 | Son | — | Illinois |
| 32 | Martin Cunn | 75 | Head | — | Ireland-Free State |
| 33 | Sarah Cunn | 67 | Wife | — | New York |
| 34 | Barbara Cunn | 27 | Son | Bookkeeper | Illinois |
| 35 | Edward Cunn | 26 | Son | Clerk | Illinois |
| 36 | Margaret Cunn | 24 | Daughter | Stenographer | Illinois |
| 37 | John C Scott | 44 | Head | Truck Driver | Indiana |
| 38 | Anna E Scott | 39 | Wife | — | Pennsylvania |
| 39 | John C Scott | 14 | Son | — | Illinois |
| 40 | William H Scott | 12 | Son | — | Illinois |
| 41 | Shirley L Scott | 10 | Daughter | — | Illinois |
| 42 | Edward R Eckert | 47 | Head | Salesman | Wisconsin |
| 43 | Minnie D Eckert | 46 | Wife | — | Illinois |
| 44 | George R Eckert | 23 | Son | Salesman | Illinois |
| 45 | Henry C Ohlendorf | 39 | Boarder | Service Manager | Illinois |
| 46 | John Lara | 59 | Head | Foreman | Ireland-Free State |
| 47 | Bridget Lara | 58 | Wife | — | Ireland-Free State |
| 48 | Josephine Lara | 30 | Daughter | Egg Candler | Illinois |
| 49 | Catherine Lara | 26 | Daughter | Egg Candler | Illinois |
| 50 | Donald Lara | 10 | Nephew | — | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)