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Mary Mclaughlin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this Mary Mclaughlin across the 1920, 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Eugene & Hugh — first a daughter (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | McLaughlin |
| Given Name | Mary B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | New Brunswick City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Soil Office |
| Class of Worker | GW |
| Hours Worked | 35 |
| Income (1939) | 700 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Stenographer |
| Township / Ward | New Brunswick City |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mclaughlin | Daughter | — | 21 | ~1919 |
| Francis Mclaughlin | Head | — | 50 | ~1890 |
| Peter Mclaughlin | Son | — | 19 | ~1921 |
| Robert Mclaughlin | Son | — | 16 | ~1924 |
Census Appearances
1920
Middlesex, New …
Daughter, age 1
Middlesex, New Jersey · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Middlesex, New …
Daughter, age 11
Middlesex, New Jersey · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlin |
| Given Name | Mary F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Daughter, age 21
Middlesex-County, New Jersey · implied b. ~1919 — 4 household members
| Surname | McLaughlin |
| Given Name | Mary B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | New Brunswick City |
| 1935 Residence (County) | Middlesex |
| Occupation | Stenographer |
| Industry | Soil Office |
| Class of Worker | GW |
| Hours Worked | 35 |
| Income (1939) | 700 |
| Highest Grade | H-4 |
| 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 Mclaughlin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Eugene Mclaughlin (~0.92 confidence) and father Hugh Mclaughlin (~0.92 confidence) and father Francis Mclaughlin (~0.92 confidence) and mother Henrietta Mclaughlin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Eugene Mclaughlin
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Hugh Mclaughlin
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Francis Mclaughlin
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Henrietta Mclaughlin
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mclaughlin
Daughter · 1940 · age 21 · b. ~1919 · New Jersey
★ You are viewing this record
Sibling
Robert Mclaughlin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Mclaughlin
Sibling · 1940 · age 19
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 — Middlesex-County, New Jersey
Open full size
1940 US Federal Census — Middlesex-County, New Jersey
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-02359-00613)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carrie Scofield-Corriell | 73 | Head | — | New Jersey |
| 2 | John Mccarthy | 47 | Head | Clerk | New Jersey |
| 3 | John Mccarthy | 45 | Head | Chauffeur | New Jersey |
| 4 | Emma Mccarthy | 44 | Wife | — | New Jersey |
| 5 | Thomas Mccarthy | 11 | Son | — | New Jersey |
| 6 | Mary Jane Mccarthy | 9 | Daughter | — | New Jersey |
| 7 | Joseph Mccarthy | 8 | Son | — | New Jersey |
| 8 | Barbara Mccarthy | 5 | Daughter | — | New Jersey |
| 9 | Margaret Mccarthy | 3 | Daughter | — | New Jersey |
| 10 | Alfred De Francesco | 23 | Head | Clerk | New Jersey |
| 11 | Anna V. De Francesco | 19 | Wife | — | New Jersey |
| 12 | Thomas Cleary | 38 | Head | Plumber | Ireland |
| 13 | Marie O. Cleary | 10 | Daughter | — | New Jersey |
| 14 | John Kinney | 20 | Head | Trucking | New Jersey |
| 15 | Margaret Kinney | 21 | Wife | Mach. Op. | New Jersey |
| 16 | John Kinney | 1 | Son | — | New Jersey |
| 17 | Elizabeth Rauch | 70 | Head | Nurse | Scotland |
| 18 | Elizabeth Rauch | 45 | Daughter | — | Pennsylvania |
| 19 | Norman Rauch | 45 | Son | — | Pennsylvania |
| 20 | Marjorie Rauch | 35 | Daughter | — | New Jersey |
| 21 | Michael Pfeffer | 28 | Head | Practitioner | New Jersey |
| 22 | Ruth Pfeffer | 27 | Wife | — | New Jersey |
| 23 | Margaret Pfeffer | 3 | Daughter | — | New Jersey |
| 24 | Robert Pfeffer | 1 | Son | — | New Jersey |
| 25 | Michael Reeves | 16 | Nephew | — | New Jersey |
| 26 | Joseph Paladino | 46 | Head | Presser | Italy |
| 27 | Mary Paladino | 40 | Wife | Sewer | Italy |
| 28 | Josephine Paladino | 19 | Daughter | — | New Jersey |
| 29 | Nicholas Paladino | 7 | Son | — | New Jersey |
| 30 | — | None | — | — | — |
| 31 | — | None | — | — | — |
| 32 | Francis Mclaughlin | 50 | Head | Clerk | New Jersey |
| 33 | Mary B. Mclaughlin THIS PERSON | 21 | Daughter | Stenographer | New Jersey |
| 34 | Peter Mclaughlin | 19 | Son | — | New Jersey |
| 35 | Robert Mclaughlin | 16 | Son | — | New Jersey |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)