MC
Mary Carney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Carney across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1925 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Carney | Daughter | — | 17 | ~1923 |
| Charles Carney | Head | — | 42 | ~1898 |
| Charles Carney | Son | — | 11 | ~1929 |
| Alfred Carney | Son | — | 9 | ~1931 |
| Joseph Carney | Son | — | 14 | ~1926 |
| Mary Carney | Spouse | — | 42 | ~1898 |
| Mary Carney | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Hudson, New …
Daughter, age 5
Hudson, New Jersey · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 15
Hudson-County, New Jersey · implied b. ~1925 — 7 household members
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 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 Mary Carney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Carney
Daughter · 1940 · age 15 · b. ~1925 · New Jersey
★ You are viewing this record
Sibling
Margaret Carney
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Carney
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Carney
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Carney
Sibling · 1940 · age 14
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-t0627-02410-00588)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Mcdermott | 23 | Wife | — | New Jersey |
| 2 | Frank La Presto | 26 | Head | Laborer | Pennsylvania |
| 3 | Christine La Presto | 21 | Wife | — | New Jersey |
| 4 | Frank La Presto | 3 | Son | — | New Jersey |
| 5 | Christine La Presto | 1 | Daughter | — | New Jersey |
| 6 | Emily Ross | 58 | Head | — | Massachusetts |
| 7 | Estella G. Ross | 77 | Mother | — | Massachusetts |
| 8 | Thomas Gallagher | 37 | Head | Laborer | Irish Free State |
| 9 | Nellie Gallagher | 35 | Wife | — | Irish Free State |
| 10 | Thomas Gallagher | 10 | Son | — | New Jersey |
| 11 | Kevin Gallagher | 5 | Son | — | New Jersey |
| 12 | Walter Connin | 60 | Head | — | New Jersey |
| 13 | Joseph Connin | 17 | Grandson | — | New Jersey |
| 14 | Mary Erney | 48 | Servant | Servant | Pennsylvania |
| 15 | Michael Ford | 37 | Head | Waiter | Irish Free State |
| 16 | Mary Ford | 36 | Wife | — | Irish Free State |
| 17 | Mary Ford | 2 | Daughter | — | New Jersey |
| 18 | Margaret Ford | 1 | Daughter | — | New Jersey |
| 19 | Charles Carney | 42 | Head | Supervisor | New York |
| 20 | Mary Carney | 42 | Wife | — | New York |
| 21 | Margaret Carney | 17 | Daughter | Office Assistant | New Jersey |
| 22 | Mary Carney THIS PERSON | 15 | Daughter | — | New Jersey |
| 23 | Joseph Carney | 14 | Son | — | New Jersey |
| 24 | Charles Jr. Carney | 11 | Son | — | New Jersey |
| 25 | Alfred Carney | 9 | Son | — | New Jersey |
| 26 | Michael J. Dolly | 44 | Head | Policeman | New Jersey |
| 27 | Elizabeth Dolly | 43 | Wife | — | New Jersey |
| 28 | Mary Dolly | 19 | Daughter | Packer | New Jersey |
| 29 | James Dolly | 15 | Son | — | New Jersey |
| 30 | Matthew Dolly | 13 | Son | — | New Jersey |
| 31 | William Dolly | 11 | Son | — | New Jersey |
| 32 | Michael Jr. Dolly | 9 | Son | — | New Jersey |
| 33 | Louise Kelly | 70 | Mother in law | — | Germany |
| 34 | Sarah Colombus | 78 | Head | — | New Jersey |
| 35 | Charles C. Colombus | 59 | Brother | Architect | New Jersey |
| 36 | Nellie Wade | 55 | Head | Saleswoman | Ohio |
| 37 | John Fields | 24 | Head | Charger | Michigan |
| 38 | Catherine Fields | 26 | Wife | — | Pennsylvania |
| 39 | Martha Fields | 0 | Daughter | — | New Jersey |
| 40 | Michael Mcintyre | 54 | Head | Plasterer | England |
Related Census Records
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)