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Margaret Brennan — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Richmond-County, New York

Our Model Tree links this Margaret Brennan across the 1920, 1930 and 1940 US Censuses in Richmond-County, New York (XGBoost, ~Confirmed), with identified parents Thomas & Martha — first a daughter (b.~1908), then head of a 4-person household.

Age 32 b. ~1908 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationRichmond-County, New York
SurnameBrennan
Given NameMargaret
Relationship to Headdaughter
SexF
Color / RaceWhite
Age32
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)Richmond
Additional Details
OccupationFile Clerk
IndustryHospital
Class of WorkerPW
Hours Worked12
Highest GradeHs 4
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationFile Clerk
Township / WardNew York City
Est. Birth Year~1908

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 Margaret Age Birth yr
Margaret Brennan Daughter — 32 ~1908
Anna Brennan Daughter — 35 ~1905
Margaret Brennan Head — 66 ~1874
Andrew Brennan Son — 31 ~1909

Census Appearances

1920
Richmond, New …
Daughter, age 12
Richmond, New York · implied b. ~1908 — 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 12
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace Pennsylvania
Can Read Yes
Can Write Yes
Speaks English Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1930
Richmond, New …
Daughter, age 22
Richmond, New York · implied b. ~1908 — 3 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Brennan
Given Name Margaret M
Relationship to Head Daughter
Sex F
Color / Race White
Age 22
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace Pennsylvania
Occupation Typist
Industry Bank
Class of Worker W
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Richmond-County, New …
Daughter, age 32
Richmond-County, New York · implied b. ~1908 — 4 household members
Surname Brennan
Given Name Margaret
Relationship to Head daughter
Sex F
Color / Race White
Age 32
Marital Status Single
Birthplace New York
1935 Residence (City) New York City
1935 Residence (County) Richmond
Occupation File Clerk
Industry Hospital
Class of Worker PW
Hours Worked 12
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.
Model Tree available
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 Thomas Brennan (~0.92 confidence) and mother Martha Brennan (~0.92 confidence) and mother Margaret Brennan (~0.92 confidence) and mother Martha Brennan (~0.92 confidence) and father Thomas Brennan (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.86
Father
Thomas Brennan
b. ~1870
Source father
● Household · direct · ~0.92
Mother
Martha Brennan
b. ~1873
Source mother
● Household · direct · ~0.92
Mother
Margaret Brennan
b. ~1874
Source mother
● Household · direct · ~0.92
Mother
Martha Brennan
b. ~1895
Source mother
● Household · direct · ~0.92
Father
Thomas Brennan
b. ~1899
Source father
● Household · direct · ~0.6
This person
Anchor record
Margaret Brennan
Daughter · 1940 · age 32 · b. ~1908 · New York
★ You are viewing this record
Sibling
Andrew Brennan
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Brennan
Sibling · 1940 · age 35
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 — Richmond-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02760-00689)

Line Name Age Relation Occupation Birthplace
1 Margaret Brennan 66 Head — New York
2 Anna Brennan 35 daughter File Clerk New York
3 Margaret Brennan THIS PERSON 32 daughter File Clerk New York
4 Andrew Brennan 31 son Junior Pressman New York
5 Philip Burghart 54 Head Tinsmith New York
6 Gertrude Burghart 53 daughter — New York
7 Edgar Burghart 44 son Survey New York
8 Edgar Jr. Burghart 17 son — New York
9 Mary Burghart 81 mother — South Carolina
10 William Burghart 79 father Cook Germany
11 William Jr. Burghart 25 Head Electrician New York
12 Beatrice Burghart 25 wife — New York
13 Richard Miles 52 Head Machinist New York
14 Ellen Miles 53 wife — Irish Free State
15 Richard Jr. Miles 26 son Orderly New York
16 Francis Miles 24 son None Worker New York
17 Evelyn Miles 22 daughter Bookkeeper New York
18 James Miles 16 son — New York
19 Mary Miles 14 daughter — New York
20 Robert Miles 13 son — New York
21 Florence Aviles 38 Wife — Pennsylvania
22 Joseph Aviles 12 son — New Jersey
23 Raymond Aviles 8 son — Maryland
24 Francis Aviles 6 son — New York
25 Alice Aviles 4 daughter — New York
26 Alice Conery 58 aunt — Irish Free State
27 Hazel Van Pelt 32 Head — New York
28 Hazel Van Pelt 16 daughter — New Jersey
29 George Van Pelt 15 son — New York
30 Doris Stewart 35 wife — England
31 Ruth Wolfe 24 wife — New York
32 William Mohrman 30 Head Clerk Germany
33 Margaret Mohrman 21 wife Examiner New York
34 William Garvin 40 Head Pump Mechanic Utah
35 Jenny Garvin 37 wife — New York
36 William Jr. Garvin 17 son — New York
37 Gloria Garvin 14 daughter — New York
38 Charles Olsen 50 Head Laborer New York
39 Andrew Fultz 43 Head Tugboat Capt. Indiana
40 Andrew Jr. Fultz 15 son — New York

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Pedigree Summary

Margaret + 2 siblings
Gen 1 · 5 parents ~0.86
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)

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