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Mary Dwyer — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Dwyer across the 1930 and 1940 US Censuses in Suffolk-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 9-person household.

Age 14 b. ~1926 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationSuffolk-County, New York
SurnameDwyer
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age14
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Kings Park
1935 Residence (County)Suffolk
Additional Details
Highest GradeNo 8
1935 ResidenceSame house
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardKings Park
Est. Birth Year~1926

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
Mary Dwyer Daughter — 14 ~1926
Alfred Dwyer Son — 9 ~1931
Nellie Dwyer Spouse — 37 ~1903
Helen Dwyer Daughter — 12 ~1928
John Dwyer Son — 1 ~1939
James Dwyer Son — 10 ~1930
Edward Dwyer Son — 7 ~1933
Margaret Dwyer Daughter — 15 ~1925
James Dwyer Head — 42 ~1898

Census Appearances

1930
Suffolk, New …
Daughter, age 5
Suffolk, New York · implied b. ~1925 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Dwyer
Given Name Mary
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
Veteran No
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Suffolk-County, New …
Daughter, age 14
Suffolk-County, New York · implied b. ~1926 — 9 household members
Surname Dwyer
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 14
Marital Status Single
Birthplace New York
1935 Residence (City) Kings Park
1935 Residence (County) Suffolk
Highest Grade No 8
1935 Residence Same house
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.
Linked across censuses
Our Model Tree links Mary Dwyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dwyer
Daughter · 1940 · age 14 · b. ~1926 · New York
★ You are viewing this record
Sibling
John Dwyer
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Dwyer
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Dwyer
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Dwyer
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Dwyer
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dwyer
Sibling · 1940 · age 15
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 — Suffolk-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02788-00432)

Line Name Age Relation Occupation Birthplace
1 Linda Lee Tetrault 1 Grand niece — New York
2 Ralph J. Osgood 35 Head High School Principal New York
3 Inez Osgood 33 Wife — New York
4 Timothy Osgood 3 Son — New York
5 Hugh Smith 32 Head Chef New York
6 Juliette Smith 30 Wife — New York
7 Hugh Smith 1 Son — New York
8 Herbert Reynolds 63 Head Custodian New York
9 Frederick Montambo 31 Head Ward Attendant Connecticut
10 Hilda Montambo 25 Wife Ward Attendant New York
11 Frederick Montambo 11 Son — New York
12 James Montambo 4 Son — New York
13 Sarah Warman 61 Head — Russia
14 Gussie Warman 30 Daughter Stenographer New York
15 Johnnie Pugliese 38 Head Cook Italy
16 Josephine Pugliese 31 Wife — Italy
17 Louis Pugliese 11 Son — Italy
18 Mary Pugliese 5 Daughter — New York
19 Arthur De Graw 36 Head Ward Attendant New York
20 Ettie De Graw 34 Wife Ward Attendant New York
21 Lucille De Graw 8 Daughter — New York
22 John De Graw 4 Son — New York
23 Sabrina Mccarty 81 Head — New York
24 Anna Gavin 38 Boarder Cashier New York
25 Mae Cusick 53 Head Mortician New York
26 John Cusick 28 Son Taxi Business New York
27 Elizabeth Cusick 25 Daughter Grade Teacher New York
28 Annie Mulligan 56 Housemaid Housemaid New York
29 Luke Burns 33 Head Post Office Clerk New York
30 Ann Burns 35 Wife — New York
31 Lawrence Burns 31 Brother — New York
32 James J. Dwyer 42 Head Ward Attendant Irish Free State
33 Nellie Dwyer 37 Wife Ward Attendant Irish Free State
34 Margaret Dwyer 15 Daughter — New York
35 Mary Dwyer THIS PERSON 14 Daughter — New York
36 Helen Dwyer 12 Daughter — New York
37 James Dwyer 10 Son — New York
38 Alfred Dwyer 9 Son — New York
39 Edward Dwyer 7 Son — New York
40 John Dwyer 1 Son — New York

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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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