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Margaret Brennan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Margaret Brennan across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Patrick & Nora — first a daughter (b.~1907), then head of a 8-person household.
Age 33
b. ~1907
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Orange |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Telephone company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Stenographer |
| Township / Ward | Orange |
| Est. Birth Year | ~1907 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Cecelia Brennan | Daughter | — | 32 | ~1908 |
| Patrick Brennan | Head | — | 65 | ~1875 |
| Margaret Brennan | Daughter | — | 33 | ~1907 |
| Nora Brennan | Spouse | — | 64 | ~1876 |
| Lauretta Brennan | Daughter | — | 23 | ~1917 |
| Robert Brennan | Son | — | 30 | ~1910 |
| James Brennan | Son | — | 19 | ~1921 |
| Winifred Brennan | Daughter | — | 24 | ~1916 |
Census Appearances
1920
Hudson, New …
Other, age 12
Hudson, New Jersey · implied b. ~1908 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Other, age 23
Hudson, New Jersey · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | sister |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Stenographer |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Daughter, age 33
Essex-County, New Jersey · implied b. ~1907 — 8 household members
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Orange |
| 1935 Residence (County) | Essex |
| Occupation | Stenographer |
| Industry | Telephone company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | No 8 |
| 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 Margaret Brennan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Brennan (~0.92 confidence) and mother Nora Brennan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Brennan
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Nora Brennan
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Brennan
Daughter · 1940 · age 33 · b. ~1907 · New Jersey
★ You are viewing this record
Sibling
Robert Brennan
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecelia Brennan
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Brennan
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brennan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lauretta Brennan
Sibling · 1940 · age 23
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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02339-00927)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert F Mc Carthy | 50 | Head | Accountant | New York |
| 2 | Marie K Mc Carthy | 40 | Wife | — | France |
| 3 | Robert F Jr Mc Carthy | 18 | Son | — | New Jersey |
| 4 | Jeanne Mc Carthy | 13 | Daughter | — | New Jersey |
| 5 | George Moore | 46 | Head | Mechanic | New Jersey |
| 6 | Agnes Moore | 45 | Wife | — | New Jersey |
| 7 | William Moore | 13 | Son | — | New Jersey |
| 8 | Loris Moore | 10 | Daughter | — | New Jersey |
| 9 | Mary J. Brown | 35 | Head | Assembler | Eire |
| 10 | William Brown | 10 | Son | — | New Jersey |
| 11 | Mary Brown | 9 | Daughter | — | New Jersey |
| 12 | Michael Mc Donnell | 36 | Head | Mechanic | New York |
| 13 | Catherine Mc Donnell | 30 | Wife | — | Eire |
| 14 | Mary Mc Donnell | 5 | Daughter | — | New Jersey |
| 15 | Michael Mc Donnell | 3 | Son | — | New Jersey |
| 16 | Ulysses Arhontous | 41 | Head | Electrician | Greece |
| 17 | George Nicholas | 42 | Partner | Laborer | Greece |
| 18 | Michael Buckley | 84 | Head | President | Massachusetts |
| 19 | Helen F. Buckley | 72 | Wife | — | New Jersey |
| 20 | Lida M. Buckley | 46 | Daughter | Teacher | New Jersey |
| 21 | Patrick Brennan | 65 | Head | Laborer | New Jersey |
| 22 | Nora Brennan | 64 | Wife | — | New Jersey |
| 23 | Margaret Brennan THIS PERSON | 33 | Daughter | Stenographer | New Jersey |
| 24 | Cecelia Brennan | 32 | Daughter | Stenographer | New Jersey |
| 25 | Robert Brennan | 30 | Son | Fireman | New Jersey |
| 26 | Winifred Brennan | 24 | Daughter | Secretary | New Jersey |
| 27 | Lauretta Brennan | 23 | Daughter | Stenographer | New Jersey |
| 28 | James Brennan | 19 | Son | Truck Driver | New Jersey |
| 29 | Gottfried Wuethrich | 35 | Head | Carpenter | New Jersey |
| 30 | Alice R. Wuethrich | 31 | Wife | — | New Jersey |
| 31 | William Wuethrich | 8 | Son | — | New Jersey |
| 32 | Nancy Wuethrich | 2 | Daughter | — | New Jersey |
| 33 | Ernest Stockman | 74 | Father-in-law | — | Germany |
| 34 | Walter H. Price | 26 | Head | Bus Driver | New Jersey |
| 35 | Eleanor Price | 27 | Wife | — | New Jersey |
| 36 | Walter H. Jr. Price | 6 | Son | — | New Jersey |
| 37 | Ernest H. Price | 2 | Son | — | New Jersey |
| 38 | Ernest Thanny | 23 | Brother-in-law | Mechanic | New Jersey |
| 39 | Matthew L. Nye | 37 | Head | Machinist | New Jersey |
| 40 | Doddie S. Nye | 26 | Wife | — | New Jersey |
Pedigree Summary
Margaret + 5 siblings
Gen 1 · 2 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)