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Margaret Brennan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Margaret Brennan across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed), with identified parents James & Helen — first a daughter (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Publishing Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 210 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Bookkeeper |
| Township / Ward | New York |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Joseph Brennan | Son | — | 18 | ~1922 |
| Loretta Bowne | Daughter | — | 24 | ~1916 |
| Roland Bowne | Other | — | 7 | ~1933 |
| Margaret Brennan | Daughter | — | 26 | ~1914 |
| Martin Brennan | Head | — | 55 | ~1885 |
Census Appearances
1920
New York, …
Daughter, age 5
New York, New York · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Daughter, age 15
New York, New York · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | Dept Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Daughter, age 26
Bronx-County, New York · implied b. ~1914 — 5 household members
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | Bronx |
| Occupation | Bookkeeper |
| Industry | Publishing Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 210 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 James Brennan (~0.92 confidence) and mother Helen Brennan (~0.92 confidence) and father James Brennan (~0.92 confidence) and mother Alice Brennan (~0.92 confidence) and father Martin Brennan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Brennan
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Helen Brennan
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
James Brennan
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Alice Brennan
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Martin Brennan
b. ~1885
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret Brennan
Daughter · 1940 · age 26 · b. ~1914 · New York
★ You are viewing this record
Sibling
Loretta Bowne
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Brennan
Sibling · 1940 · age 18
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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02469-00579)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Heneghan | 19 | Daughter | Typist | New York |
| 42 | William Schueler | 58 | Head | Baker | Germany |
| 43 | Mary Schueler | 48 | Wife | — | Germany |
| 44 | Walter Schueler | 19 | Son | Filing Clerk | New York |
| 45 | Mary Harvey | 30 | Head | Sales Girl | Irish Free State |
| 46 | Roderick Harvey | 25 | Brother | Bookkeeper | Irish Free State |
| 47 | Mary Connolly | 70 | Lodger | — | Irish Free State |
| 48 | Alexander Knoch | 43 | Head | Bread Packer | New York |
| 49 | Marie Knoch | 42 | Wife | Superintendent | New York |
| 50 | Lawrence Knoch | 22 | Son | Freight Loader | New York |
| 51 | Elizabeth Knoch | 20 | Daughter | Superintendent | New York |
| 52 | Frederick Knoch | 13 | Son | — | New York |
| 53 | Lena Knoch | 77 | Aunt | — | Germany |
| 54 | Victor Neubauer | 30 | Head | — | New York |
| 55 | Stella Neubauer | 25 | Wife | Chamber Maid | New York |
| 56 | Martin Brennan | 55 | Head | Night Watchman | New York |
| 57 | Margaret Brennan THIS PERSON | 26 | Daughter | Bookkeeper | New York |
| 58 | Joseph Brennan | 18 | Son | Messenger | New York |
| 59 | Loretta Bowne | 24 | Daughter | Filing Clerk | New York |
| 60 | Roland Bowne | 7 | Grandson | — | Connecticut |
| 61 | Joseph Kelly | 64 | Head | Watchman | Irish Free State |
| 62 | Catherine Kelly | 51 | Wife | — | Irish Free State |
| 63 | Mary Kelly | 28 | Daughter | Helper | New York |
| 64 | Mary Kelly | 25 | Daughter-in-law | Typist | New York |
| 65 | James Kelly | 11 | Son | — | New York |
| 66 | John J. Mcelhone | 40 | Head | Laborer | Northern Ireland |
| 67 | Margaret Mcelhone | 35 | Wife | — | Northern Ireland |
| 68 | Margaret M. Mcelhone | 7 | Daughter | — | New York |
| 69 | Catherine Mcelhone | 5 | Daughter | — | New York |
| 70 | John G. Mcelhone | 4 | Son | — | New York |
| 71 | Anna T. Demming | 61 | Head | — | New York |
| 72 | George Demming | 25 | Son | Chemist | New York |
| 73 | Loretta Demming | 24 | Daughter | Packer | New York |
| 74 | Rodolph Miller | 55 | Head | Carpenter | Austria |
| 75 | Jennie Miller | 48 | Wife | — | New York |
| 76 | Stanley Miller | 24 | Son | Machine Operator | New York |
| 77 | Matthew Miller | 20 | Son | Designer | New York |
| 78 | Viola Miller | 20 | Daughter | Stamper | New York |
| 79 | Wallace N. Binny | 32 | Head | Construction Engineer | New York |
| 80 | Dorothy M. Binny | 46 | Sister | — | New York |
Pedigree Summary
Margaret + 2 siblings
Gen 1 · 5 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)