JF
John Flaherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Flaherty across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 10-person household.
Age 26
b. ~1914
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | New Worker |
| Township / Ward | Jersey City City |
| Est. Birth Year | ~1914 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Bernard Flaherty | Son | — | 23 | ~1917 |
| Anna Flaherty | Daughter | — | 18 | ~1922 |
| Beatrice Flaherty | Daughter | — | 14 | ~1926 |
| Bernard Flaherty | Head | — | 53 | ~1887 |
| Irene Flaherty | Daughter | — | 12 | ~1928 |
| Mary Flaherty | Spouse | — | 48 | ~1892 |
| Margaret Flaherty | Daughter | — | 16 | ~1924 |
| Winifred Flaherty | Daughter | — | 14 | ~1926 |
| John Flaherty | Son | — | 26 | ~1914 |
| Rita Flaherty | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Hudson, New …
Son, age 16
Hudson, New Jersey · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Binder |
| Industry | Publishing House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 26
Hudson-County, New Jersey · implied b. ~1914 — 10 household members
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City City |
| 1935 Residence (County) | Hudson |
| Occupation | New Worker |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Flaherty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Flaherty
Son · 1940 · age 26 · b. ~1914 · New Jersey
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Sibling
Anna Flaherty
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Flaherty
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Flaherty
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Flaherty
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Flaherty
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Flaherty
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Flaherty
Sibling · 1940 · age 10
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02404-00072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Katherine Natelli | 21 | Daughter | Saleslady | New Jersey |
| 42 | Anthony Natelli | 20 | Son | Salesman | New Jersey |
| 43 | Maurice Natelli | 13 | Son | — | New Jersey |
| 44 | Emily Natelli | 15 | Daughter | — | New Jersey |
| 45 | Albert Natelli | 10 | Son | — | New Jersey |
| 46 | Olga Natelli | 9 | Daughter | — | New Jersey |
| 47 | Frank Ryncki | 67 | Head | Engineer | Northern Ireland |
| 48 | Mary Ryncki | 64 | Wife | — | Eire |
| 49 | Edward Mitchell | 27 | Step-son | Asst Manager | New Jersey |
| 50 | Katherine Mitchell | 27 | Daughter-in-law | — | New Jersey |
| 51 | Jean Mitchell | 7 | Grand-daughter | — | New Jersey |
| 52 | Patricia Mitchell | 1 | Grand-daughter | — | New Jersey |
| 53 | James Ryncki | 25 | Son | Wrecker | New Jersey |
| 54 | Timothy Flynn | 39 | Head | Manager | New Jersey |
| 55 | Florence Flynn | 37 | Wife | — | New Jersey |
| 56 | Arline Flynn | 3 | Daughter | — | New Jersey |
| 57 | William J. Luke | 63 | Head | Paymaster | New Jersey |
| 58 | Florence M. Luke | 58 | Wife | — | New York |
| 59 | William E. Luke | 29 | Head | Supervisor | New Jersey |
| 60 | Alice M. Luke | 26 | Wife | — | New York |
| 61 | David E. Luke | 3 | Son | — | New Jersey |
| 62 | Bernard Flaherty | 53 | Head | Bartender | Eire |
| 63 | Mary Flaherty | 48 | Wife | — | Eire |
| 64 | John Flaherty THIS PERSON | 26 | Son | New Worker | New Jersey |
| 65 | Bernard Flaherty | 23 | Son | — | New Jersey |
| 66 | Anna Flaherty | 18 | Daughter | — | New Jersey |
| 67 | Margaret Flaherty | 16 | Daughter | — | New Jersey |
| 68 | Winifred Flaherty | 14 | Daughter | — | New Jersey |
| 69 | Beatrice Flaherty | 14 | Daughter | — | New Jersey |
| 70 | Irene Flaherty | 12 | Daughter | — | New Jersey |
| 71 | Rita Flaherty | 10 | Daughter | — | New Jersey |
| 72 | Peter Harford | 57 | Head | Foreman | New York |
| 73 | Pearl Harford | 57 | Wife | — | New York |
| 74 | Ethel Harford | 33 | Daughter | Stenographer | New York |
| 75 | Dorothy Harford | 28 | Daughter | Instructress | New York |
| 76 | Frances Borkowski | 59 | Head | — | Poland |
| 77 | Leo Borkowski | 27 | Son | Truck Driver | New Jersey |
| 78 | Edward Borkowski | 25 | Son | Wiper | New Jersey |
| 79 | Robert Bieber | 39 | Head | Brakeman | New York |
| 80 | Florence Bieber | 34 | Wife | — | New Jersey |
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)