MF
Mary Finn — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Kings, New York
Our Model Tree links this Mary Finn across the 1920 and 1930 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 11-person household.
Age 37
b. ~1893
Female
Spouse
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Kings, New York |
| Surname | Finn |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Brooklyn Borough |
| 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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Finn | Spouse | — | 37 | ~1893 |
| John Finn | Son | — | 10 | ~1920 |
| Daniel Finn | Son | — | 1 | ~1929 |
| Harold Finn | Son | — | 12 | ~1918 |
| Robert Finn | Son | — | 8 | ~1922 |
| Henry Finn | Son | — | 7 | ~1923 |
| Annie Finn | Other | — | 44 | ~1886 |
| Alice Finn | Daughter | — | 3 | ~1927 |
| James Finn | Head | — | 40 | ~1890 |
| James Finn | Son | — | 14 | ~1916 |
| Margaret Finn | Daughter | — | 5 | ~1925 |
Census Appearances
1920
Kings, New …
Spouse, age 27
Kings, New York · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finn |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1907 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Kings, New …
Spouse, age 37
Kings, New York · implied b. ~1893 — 11 household members
| Surname | Finn |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Kings, New York, using XGBoost record linkage.
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This person
Anchor record
Mary Finn
Spouse · 1930 · age 37 · b. ~1893 · New York
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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 — Kings, New York
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1930 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1499:0684)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Gannon | 45 | Head | Laborer | Ireland |
| 2 | Helen Gannon | 40 | Wife | — | Ireland |
| 3 | John Gannon | 17 | Son | — | N. Y. State |
| 4 | Joseph Gannon | 12 | Son | — | N. Y. State |
| 5 | Beatrice B Gannon | 15 | Daughter | — | N. Y. State |
| 6 | Helen Gannon | 15 | Daughter | Clerk | N. Y. State |
| 7 | Rita Gannon | 13 | Daughter | — | N. Y. State |
| 8 | James Finn | 40 | Head | Iron Worker | Ireland |
| 9 | Mary Finn THIS PERSON | 37 | Wife | — | Ireland |
| 10 | James Finn | 14 | Son | — | Brooklyn |
| 11 | Harold Finn | 12 | Son | — | Brooklyn |
| 12 | John Finn | 10 | Son | — | Brooklyn |
| 13 | Robert Finn | 8 | Son | — | Brooklyn |
| 14 | Henry Finn | 7 | Son | — | Brooklyn |
| 15 | Margaret Finn | 5 | Daughter | — | Brooklyn |
| 16 | Alice Finn | 3 | Daughter | — | Brooklyn |
| 17 | Daniel Finn | 1 | Son | — | Brooklyn |
| 18 | Annie Finn | 44 | Sister | House Work | Ireland |
| 19 | Anthony Costagliola | 53 | Head | Longshore | Italy |
| 20 | Nancy Costagliola | 44 | Wife | — | Italy |
| 21 | Angeline Costagliola | 13 | Daughter | — | Brooklyn |
| 22 | Roseanne Costagliola | 11 | Daughter | — | Brooklyn |
| 23 | Grace Costagliola | 9 | Daughter | — | Brooklyn |
| 24 | James Costagliola | 22 | Son | Shoemaker | Brooklyn |
| 25 | Jack Costagliola | 20 | Son | — | Brooklyn |
| 26 | Dominick Costagliola | 18 | Son | — | Brooklyn |
| 27 | Ernest Costagliola | 15 | Son | — | Brooklyn |
| 28 | Joseph Savoia | 37 | Head | Proprietor | Italy |
| 29 | Minnie Savoia | 34 | Wife | — | Brooklyn |
| 30 | Lester Savoia | 27 | Boarder | Clerk | Brooklyn |
| 31 | Benjamin Savoia | 19 | Boarder | Clerk | Brooklyn |
| 32 | Albert Savoia | 21 | Boarder | — | Brooklyn |
| 33 | Louis Savoia | 23 | Boarder | Clerk | Brooklyn |
| 34 | Joseph Savoia | 4 | Son | — | Brooklyn |
| 35 | James Savoia | 2 | Son | — | Brooklyn |
| 36 | Billy Mcdonough | 35 | Head | Laborer | Brooklyn |
| 37 | Anna Mcdonough | 34 | Wife | — | Brooklyn |
| 38 | Rita Mcdonough | 3 | Daughter | — | Brooklyn |
| 39 | Carolyn Gulley | 20 | Head | — | Sweden |
| 40 | Doris Gulley | 5 | Daughter | — | Brooklyn |
| 41 | Carol Gulley | 3 | Daughter | — | Brooklyn |
| 42 | Stephen Lipinski | 45 | Head | Iron Work | Poland |
| 43 | Helen Lipinski | 38 | Wife | — | Poland |
| 44 | Mary Lipinski | 14 | Daughter | — | Brooklyn |
| 45 | Helen Lipinski | 11 | Daughter | — | Brooklyn |
| 46 | Edward Lipinski | 9 | Son | — | Brooklyn |
| 47 | Theresa Lipinski | 5 | Daughter | — | Brooklyn |
| 48 | John Monahan | 44 | Head | Longshore | Ireland |
| 49 | Rose Monahan | 44 | Wife | — | Ireland |
| 50 | William Monahan | 12 | Son | — | Brooklyn |
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)