MC
Mary Coughlin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Coughlin across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Female
Daughter
Born: NEW JERSEY
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | NEW JERSEY |
| 1935 Residence (City) | BAYONNE City |
| 1935 Residence (County) | HUDSON |
| Additional Details | |
| Occupation | new worker |
| Highest Grade | No H4 |
| 1935 Residence | SAME HOUSE |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | New Worker |
| Township / Ward | Bayonne City |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Coughlin | Spouse | — | 46 | ~1894 |
| Vincent Coughlin | Son | — | 12 | ~1928 |
| Michael Coughlin | Son | — | 13 | ~1927 |
| Catherine Coughlin | Daughter | — | 19 | ~1921 |
| Matthew Coughlin | Son | — | 22 | ~1918 |
| Mary Coughlin | Daughter | — | 20 | ~1920 |
| Margaret Coughlin | Daughter | — | 16 | ~1924 |
| Michael Coughlin | Head | — | 48 | ~1892 |
| John Coughlin | Son | — | 18 | ~1922 |
Census Appearances
1930
Hudson, New …
Daughter, age 10
Hudson, New Jersey · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland-So |
| Mother's Birthplace | Ireland-So |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 20
Hudson-County, New Jersey · implied b. ~1920 — 9 household members
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | NEW JERSEY |
| 1935 Residence (City) | BAYONNE City |
| 1935 Residence (County) | HUDSON |
| Occupation | new worker |
| Highest Grade | No H4 |
| 1935 Residence | SAME HOUSE |
| 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 Coughlin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Coughlin
Daughter · 1940 · age 20 · b. ~1920 · New Jersey
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Sibling
Margaret Coughlin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matthew Coughlin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Coughlin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Coughlin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Coughlin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Coughlin
Sibling · 1940 · age 12
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-t0627-02346-00337)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Afshinsky | 58 | Head | Metal-Work | Lithuania |
| 2 | Ada Afshinsky | 60 | Wife | — | Lithuania |
| 3 | Louis Afshinsky | 26 | Son | Chauffeur | New Jersey |
| 4 | Sam Afshinsky | 26 | Son | Chauffeur | New Jersey |
| 5 | Rose Afshinsky | 23 | Daughter | Bookkeeper | New Jersey |
| 6 | Stephen Dolomik | 32 | Head | Salesman | Pennsylvania |
| 7 | Lottie Dolomik | 27 | Wife | — | Pennsylvania |
| 8 | Stephen Jr. Dolomik | 8 | Son | — | Pennsylvania |
| 9 | Junneve Dolomik | 6 | Daughter | — | Pennsylvania |
| 10 | Geraldine Dolomik | 4 | Daughter | — | Pennsylvania |
| 11 | Max Dolomik | 56 | Father | Watchman | Austria |
| 12 | John Opudum | 57 | Brother-in-law | Machinist | Pennsylvania |
| 13 | Bessie Opudum | 20 | Sister-in-law | — | Pennsylvania |
| 14 | Michael Mesko | 18 | Cousin | Mach-Helper | Pennsylvania |
| 15 | James Reilly | 43 | Head | Machinist | New York |
| 16 | Alice Reilly | 36 | Wife | — | New Jersey |
| 17 | Anna Mae Reilly | 15 | Daughter | — | New Jersey |
| 18 | James Jr. Reilly | 13 | Son | — | New Jersey |
| 19 | John Reilly | 11 | Son | — | New Jersey |
| 20 | Patrick Reilly | 8 | Son | — | New Jersey |
| 21 | Patricia Reilly | 10 | Daughter | — | New Jersey |
| 22 | Natalia Lipski | 47 | Head | — | Poland |
| 23 | Theodora Lipski | 27 | Daughter | Tack Welder | New Jersey |
| 24 | John Lipski | 24 | Son | Buffer | New Jersey |
| 25 | Edward Lipski | 22 | Son | Tinsmith | New Jersey |
| 26 | Michael Coughlin | 48 | Head | Stilman | EIRE |
| 27 | Anna Coughlin | 46 | Wife | — | EIRE |
| 28 | Matthew Coughlin | 22 | Son | Clerk | NEW YORK |
| 29 | Mary Coughlin THIS PERSON | 20 | Daughter | New Worker | NEW JERSEY |
| 30 | Catherine Coughlin | 19 | Daughter | New Worker | NEW JERSEY |
| 31 | John Coughlin | 18 | Son | New Worker | NEW JERSEY |
| 32 | Margaret Coughlin | 16 | Daughter | New Worker | NEW JERSEY |
| 33 | Vincent Coughlin | 12 | Son | — | NEW JERSEY |
| 34 | Michael Coughlin | 13 | Son | — | NEW JERSEY |
| 35 | Simon White | 48 | Head | Oil Pumper | MASSACHUSETTS |
| 36 | Anna White | 45 | Wife | — | NEW JERSEY |
| 37 | James White | 22 | Son | Pipefitter | NEW JERSEY |
| 38 | Vincent White | 21 | Son | Elev. Op. | NEW JERSEY |
| 39 | Edward White | 19 | Son | New Worker | NEW JERSEY |
| 40 | Joseph White | 17 | Son | New Worker | 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)