JF
John Finn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Schenectady-County, New York
Our Model Tree links this John Finn across the 1930 and 1940 US Censuses in Schenectady-County, New York (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Schenectady-County, New York |
| Surname | Finn |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Schenectady |
| 1935 Residence (County) | Schenectady |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Schenectady |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| Sheila Finn | Daughter | — | ~1940 | |
| Eva Finn | Spouse | — | 36 | ~1904 |
| Michael Finn | Son | — | 1 | ~1939 |
| John Finn | Son | — | 13 | ~1927 |
| William Finn | Son | — | 12 | ~1928 |
| William Finn | Head | — | 39 | ~1901 |
| Martin Finn | Son | — | 5 | ~1935 |
Census Appearances
1930
Schenectady, New …
Son, age 3
Schenectady, New York · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Schenectady-County, New …
Son, age 13
Schenectady-County, New York · implied b. ~1927 — 7 household members
| Surname | Finn |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Schenectady |
| 1935 Residence (County) | Schenectady |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Finn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Finn
Son · 1940 · age 13 · b. ~1927 · New York
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Sibling
William Finn
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Finn
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sheila Finn
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Finn
Sibling · 1940 · age 5
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 — Schenectady-County, New York
Open full size
1940 US Federal Census — Schenectady-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02775-00312)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Benjamin Goodman | 27 | head | Bag Dealer | Vermont |
| 42 | Rose Goodman | 26 | wife | Sewer | New York |
| 43 | Joseph Mazzo | 41 | head | Laborer | Italy |
| 44 | Macheline Mazzo | 38 | wife | — | Italy |
| 45 | Mary Mazzo | 16 | daughter | — | Italy |
| 46 | Lilia Mazzo | 9 | daughter | — | New York |
| 47 | Josephine Mazzo | 8 | daughter | — | New York |
| 48 | Madalina Mazzo | 4 | daughter | — | New York |
| 49 | Mary Gaetano | 60 | head | — | New York |
| 50 | Anthony Gaetano | 24 | son | Laborer | New York |
| 51 | Loretta Gaetano | 19 | daughter-in-law | — | New York |
| 52 | Lewis Gaetano | 27 | son | — | New York |
| 53 | Anthony Dicocco | 32 | head | Laborer | New York |
| 54 | Catherine Dicocco | 36 | wife | Pantry Cook | Massachusetts |
| 55 | Vincent Percenti | 17 | step-son | — | New York |
| 56 | Edward Percenti | 16 | step-son | — | New York |
| 57 | Marion Percenti | 13 | step-daughter | — | New York |
| 58 | William Finn | 39 | head | Acetylene Cutter | Massachusetts |
| 59 | Eva Finn | 36 | wife | — | New York |
| 60 | John Finn THIS PERSON | 13 | son | — | New York |
| 61 | William Finn | 12 | son | — | New York |
| 62 | Martin Finn | 5 | son | — | New York |
| 63 | Michael Finn | 1 | son | — | New York |
| 64 | Sheila Finn | 0 | daughter | — | New York |
| 65 | Francis Colling | 34 | head | Sub-Foreman | New York |
| 66 | Emma Colling | 31 | wife | — | Pennsylvania |
| 67 | John Colling | 7 | son | — | New York |
| 68 | Donald Colling | 6 | son | — | New York |
| 69 | Janet Colling | 2 | daughter | — | New York |
| 70 | John Ferrucci | 50 | head | Laborer | Italy |
| 71 | Katherine Ferrucci | 50 | wife | — | Italy |
| 72 | Joseph Ferrucci | 21 | son | Laborer | New York |
| 73 | Frank Ferrucci | 18 | son | New Worker | New York |
| 74 | Alba Ferrucci | 15 | son | — | New York |
| 75 | Robert Keller | 70 | head | Helper (Plumber) | Germany |
| 76 | Bridget Keller | 62 | wife | — | Ireland (South) |
| 77 | John Keller | 28 | son | Mechanical Engineer | New York |
| 78 | Jane Hogan | 72 | head | — | New York |
| 79 | Daniel J. Hogan | 40 | son | Fireman | New York |
| 80 | Charles A. Hogan | 32 | son | Clerical | New York |
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)