MC
Mary Cahill — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hudson, New Jersey
Our Model Tree links this Mary Cahill across the 1930 and 1940 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 7-person household.
Age 47
b. ~1883
Female
Spouse
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Hudson, New Jersey |
| Surname | Cahill |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1920 |
| Age at First Marriage | 16 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Housewife |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Housewife |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1883 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Cahill | Son | — | 16 | ~1914 |
| Frank Cahill | Son | — | 18 | ~1912 |
| Florence Cahill | Daughter | — | 6 | ~1924 |
| Michael Cahill | Head | — | 49 | ~1881 |
| James Cahill | Son | — | 7 | ~1923 |
| Mary Cahill | Spouse | — | 47 | ~1883 |
| Mary Cahill | Daughter | — | 22 | ~1908 |
Census Appearances
1930
Hudson, New …
Spouse, age 47
Hudson, New Jersey · implied b. ~1883 — 7 household members
| Surname | Cahill |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1920 |
| Age at First Marriage | 16 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Housewife |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Hudson-County, New …
Spouse, age 58
Hudson-County, New Jersey · implied b. ~1882 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cahill |
| Given Name | Madge |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | JERSEY CITY |
| 1935 Residence (County) | HUDSON |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 Cahill across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cahill
Spouse · 1930 · age 47 · b. ~1883 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Hudson, New Jersey
Open full size
1930 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1355:0310)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emil Szylowicz | 38 | Head | Proprietor | Poland |
| 2 | Anna Szylowicz | 34 | Wife | — | Poland |
| 3 | Joseph Szylowicz | 12 | Son | — | New Jersey |
| 4 | Catherine Szylowicz | 10 | Daughter | — | New Jersey |
| 5 | Henry Szylowicz | 4 | Son | — | New Jersey |
| 6 | Michael Cahill | 49 | Head | Steam Operator | Irish Free State |
| 7 | Mary Cahill THIS PERSON | 47 | Wife | Housewife | Ireland |
| 8 | Mary Cahill | 22 | Daughter | Operator | New Jersey |
| 9 | Frank Cahill | 18 | Son | Cable Splicer | New Jersey |
| 10 | John Cahill | 16 | Son | — | New Jersey |
| 11 | James A. Cahill | 7 | Son | — | New Jersey |
| 12 | Florence A. Cahill | 6 | Daughter | — | New Jersey |
| 13 | Ignatius Drozd | 40 | Head | Machinist | Poland |
| 14 | Anna Drozd | 38 | Wife | Ground Operator | New Jersey |
| 15 | Irene Drozd | 15 | Daughter | — | New Jersey |
| 16 | Catherine Drozd | 12 | Daughter | — | New Jersey |
| 17 | Fannie Drozd | 10 | Daughter | — | New Jersey |
| 18 | Josef Zych | 41 | Head | Machinist | Poland |
| 19 | Sophia Zych | 40 | Wife | Cleaner | Poland |
| 20 | Matthew Zych | 10 | Son | — | New Jersey |
| 21 | Stanley Zych | 6 | Son | — | New Jersey |
| 22 | George Wierckuboy | 46 | Head | Fireman | Poland |
| 23 | Lena Wierckuboy | 50 | Wife | Housewife | Poland |
| 24 | Mary Wierckuboy | 19 | Daughter | Switch Board Op. | New Jersey |
| 25 | Anthony Wierckuboy | 17 | Son | Cable Splicer | New Jersey |
| 26 | John Wierckuboy | 15 | Son | — | New Jersey |
| 27 | Stella Wierckuboy | 7 | Daughter | — | New Jersey |
| 28 | Frank Suwik | 39 | Head | Car Inspector | Poland |
| 29 | Angeline Suwik | 39 | Wife | Housewife | Poland |
| 30 | Stella Suwik | 19 | Daughter | Coil Winder | New Jersey |
| 31 | Helen Suwik | 15 | Daughter | — | New Jersey |
| 32 | Joseph Suwik | 11 | Son | — | New Jersey |
| 33 | Edward Suwik | 9 | Son | — | New Jersey |
| 34 | Louisa Suwik | 7 | Daughter | — | New Jersey |
| 35 | Stanley Baldaguik | 38 | Head | Fireman | Poland |
| 36 | Agnes Baldaguik | 32 | Wife | Housewife | Poland |
| 37 | Genevieve Baldaguik | 9 | Daughter | — | New Jersey |
| 38 | Madeline Pardon | 46 | Head | Folder | Poland |
| 39 | John Pardon | 19 | Son | Com. Binder | Pennsylvania |
| 40 | Paul Cierlerski | 42 | Head | Truck Driver | Poland |
| 41 | Anna Cierlerski | 40 | Wife | Housewife | Poland |
| 42 | Helen Cierlerski | 17 | Daughter | Inspector | New Jersey |
| 43 | John Cierlerski | 16 | Son | — | New Jersey |
| 44 | Lillian Cierlerski | 14 | Daughter | — | New Jersey |
| 45 | Stella Cierlerski | 12 | Daughter | — | New Jersey |
| 46 | Frank Cierlerski | 10 | Son | — | New Jersey |
| 47 | Tony Cierlerski | 9 | Son | — | New Jersey |
| 48 | Theodore Mazurkowski | 23 | Head | Bookkeeper | New Jersey |
| 49 | Mary Mazurkowski | 18 | Wife | Housewife | New Jersey |
| 50 | William Lomanowski | 26 | Head | Pipe Fitter | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)