MS
Mary Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Sweeney across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 6-person household.
Age 40
b. ~1900
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housewife |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Housewife |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1900 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Nora Sweeney | Daughter | — | 10 | ~1930 |
| Margaret Sweeney | Daughter | — | 13 | ~1927 |
| Mary Sweeney | Daughter | — | 12 | ~1928 |
| Patrick Sweeney | Head | — | 40 | ~1900 |
| John Sweeney | Son | — | 5 | ~1935 |
| Mary Sweeney | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Hudson, New …
Spouse, age 27
Hudson, New Jersey · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1913 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Hudson, New …
Spouse, age 35
Hudson, New Jersey · implied b. ~1895 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Hudson-County, New …
Spouse, age 40
Hudson-County, New Jersey · implied b. ~1900 — 6 household members
| Surname | Sweeney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Occupation | Housewife |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Sweeney
Spouse · 1940 · age 40 · b. ~1900 · New Jersey
★ You are viewing this record
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-t0627-02406-00507)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sam Gersam | 63 | Head | Metal Worker | Poland |
| 2 | Rae Gersam | 52 | Wife | Housewife | New York |
| 3 | Rita Gersam | 28 | Daughter | Usher | New York |
| 4 | Charles L. Dawson | 67 | Head | Milk Route | New York |
| 5 | Selma M. Dawson | 63 | Wife | Housewife | New York |
| 6 | James M. Dawson | 39 | Son | Milk Route | New York |
| 7 | Irving C. Dawson | 36 | Son | Milk Route | New York |
| 8 | James P. Mckeon | 57 | Head | Laborer | Ireland |
| 9 | Mary C. Mckeon | 57 | Wife | Housewife | Ireland |
| 10 | Margaret Mckeon | 21 | Daughter | Office Work | New Jersey |
| 11 | Harry Mckeon | 17 | Son | — | New Jersey |
| 12 | Richard H. Reilly | 50 | Head | Metal Worker | New Jersey |
| 13 | Cornelia B. Reilly | 44 | Wife | Housewife | New York |
| 14 | George Reilly | 16 | Son | — | New Jersey |
| 15 | Dorothy Reilly | 19 | Daughter | Clerk | New Jersey |
| 16 | Vincent Reilly | 21 | Son | Laborer | New Jersey |
| 17 | John Reilly | 22 | Son | Laborer | New Jersey |
| 18 | Annabella Hafner | 43 | Sister in law | Embroidery | New Jersey |
| 19 | Mary O. Barlow | 75 | Head | Housewife | New York |
| 20 | Silvestro Giralano | 54 | Head | Barber | Italy |
| 21 | Angelina Giralano | 52 | Wife | Housewife | Italy |
| 22 | Louis Giralano | 18 | Son | — | New Jersey |
| 23 | Patrick Sweeney | 40 | Head | Driver | Ireland |
| 24 | Mary Sweeney THIS PERSON | 40 | Wife | Housewife | Ireland |
| 25 | Margaret Sweeney | 13 | Daughter | — | New Jersey |
| 26 | Mary Sweeney | 12 | Daughter | — | New Jersey |
| 27 | Nora Sweeney | 10 | Daughter | — | New Jersey |
| 28 | John P. Sweeney | 5 | Son | — | New Jersey |
| 29 | Walter A. Dishow | 39 | Head | Auto Mech. | New York |
| 30 | Mary R. Dishow | 39 | Wife | Housewife | Ireland |
| 31 | Betty Dishow | 15 | Daughter | — | New York |
| 32 | Charlotte Dishow | 14 | Daughter | — | New York |
| 33 | Joseph Whelan | 40 | Head | Checker | Ireland |
| 34 | Beatrice Whelan | 40 | Wife | Housewife | Ireland |
| 35 | Patrick J. Whelan | 13 | Son | — | New Jersey |
| 36 | Ann Marie Whelan | 11 | Daughter | — | New Jersey |
| 37 | Mary Lucid | 23 | Niece | Clerk | New Jersey |
| 38 | Celine Lucid | 18 | Niece | New Worker | New Jersey |
| 39 | Patrick Darcey | 55 | Lodger | Laborer | Ireland |
| 40 | George B. Howks | 64 | Head | Blacksmith | 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)