JF
John Finn — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this John Finn across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Finn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Manhattan |
| 1935 Residence (County) | New York |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Manhattan |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nora Finn | Daughter | — | 12 | ~1928 |
| Andrew Finn | Son | — | 29 | ~1911 |
| John Finn | Son | — | 23 | ~1917 |
| Nora Finn | Head | — | 49 | ~1891 |
| Rita Finn | Daughter | — | 21 | ~1919 |
| William Finn | Son | — | 18 | ~1922 |
Census Appearances
1920
New York, …
Son, age 2
New York, New York · implied b. ~1918 — 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 | 2 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Mother Tongue | Irish |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Son, age 12
New York, New York · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Finn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Student |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Son, age 23
New-York-County, New York · implied b. ~1917 — 6 household members
| Surname | Finn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Manhattan |
| 1935 Residence (County) | New York |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | New York |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Finn (~0.92 confidence) and father John Finn (~0.92 confidence) and mother Delia Finn (~0.92 confidence) and mother Nora Finn (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Finn
b. ~1885
Source father
● Household
· direct · ~0.92
Father
John Finn
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Delia Finn
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Nora Finn
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Finn
Son · 1940 · age 23 · b. ~1917 · New York
★ You are viewing this record
Sibling
Rita Finn
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Finn
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nora Finn
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Finn
Sibling · 1940 · age 18
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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02666-00226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theresa Mcgann | 11 | Daughter | — | New York |
| 2 | Edward Mcgann | 9 | Son | — | New York |
| 3 | Nora Finn | 49 | Head | — | New York |
| 4 | Andrew Finn | 29 | Son | Shipping Clerk | New York |
| 5 | John Finn THIS PERSON | 23 | Son | — | New York |
| 6 | Rita Finn | 21 | Daughter | Waitress | New York |
| 7 | William Finn | 18 | Son | Delivery Boy | New York |
| 8 | Nora Finn | 12 | Daughter | — | New York |
| 9 | Sarah Cantwell | 54 | Head | — | Eire |
| 10 | Thomas Cantwell | 29 | Son | Doorman | New York |
| 11 | John Cantwell | 27 | Son | Elevator Oper | New York |
| 12 | Frank Cantwell | 25 | Son | Car Cleaner | New York |
| 13 | Nora Cantwell | 22 | Daughter | 0 | New York |
| 14 | Margaret Cantwell | 18 | Daughter | 0 | New York |
| 15 | Joseph Cantwell | 15 | Son | 0 | New York |
| 16 | James Cantwell | 9 | Son | 0 | New York |
| 17 | Patrick Tracy | 38 | Head | Stevedore | Eire |
| 18 | Elizabeth Tracy | 39 | Wife | — | New York |
| 19 | Catherine Tracy | 21 | Daughter | Packer | New York |
| 20 | William Tracy | 20 | Son | Laborer | New York |
| 21 | Patrick Tracy | 7 | Son | — | New York |
| 22 | Eileen Tracy | 1 | Daughter | — | New York |
| 23 | William Lyons | 37 | Head | Gas Attendant | New Jersey |
| 24 | Mary Lyons | 36 | Wife | — | New York |
| 25 | John Lyons | 12 | Son | — | New York |
| 26 | Patrick Lyons | 10 | Son | — | New York |
| 27 | Helen Lyons | 8 | Daughter | — | New York |
| 28 | John O'Connor | 37 | Head | 0 | Eire |
| 29 | Catherine O'Connor | 39 | Wife | 0 | Eire |
| 30 | Michael O'Connor | 8 | Son | 0 | New York |
| 31 | Nora O'Connor | 6 | Daughter | 0 | New York |
| 32 | James O'Connor | 3 | Son | 0 | New York |
| 33 | Charles Langone | 66 | Lodger | Laborer | Italy |
| 34 | Mary Langone | 55 | Lodger | — | New York |
| 35 | Alphonso Morgese | 36 | Head | Merchant | Italy |
| 36 | Clara Morgese | 26 | Wife | — | Italy |
| 37 | Alphonso Morgese | 9 | Son | — | New York |
| 38 | John Morgese | 4 | Son | 0 | New York |
| 39 | Ralph Morgese | 2 | Son | 0 | New York |
| 40 | Clara Morgese | 1 | Daughter | 0 | New York |
Pedigree Summary
John + 4 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)