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Mary Dwyer — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Dwyer across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.

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

1940 Census Record Details

Census Year1940
LocationKings-County, New York
SurnameDwyer
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age14
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)Kings
Additional Details
Highest GradeH 1
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardNew York City
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.

8 people recorded at the same address in the 1940 census.

Name Relation to head Relative to Mary Age Birth yr
Margaret Dwyer Daughter — 16 ~1924
Elizabeth Dwyer Spouse — 50 ~1890
John Dwyer Head — 47 ~1893
Thera Dwyer Daughter — 10 ~1930
Michael Dwyer Son — 8 ~1932
Mary Dwyer Daughter — 14 ~1926
Dennis Dwyer Son — 16 ~1924
Elizabeth Dwyer Daughter — 12 ~1928

Census Appearances

1930
Kings, New …
Daughter, age 4
Kings, New York · implied b. ~1926 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Dwyer
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 4
Marital Status Single
Birthplace New York
Father's Birthplace Ireland
Mother's Birthplace Ireland
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Kings-County, New …
Daughter, age 14
Kings-County, New York · implied b. ~1926 — 8 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) New York City
1935 Residence (County) Kings
Highest Grade H 1
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.
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
Elizabeth Dwyer
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dennis Dwyer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Dwyer
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dwyer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thera Dwyer
Sibling · 1940 · age 10
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 — Kings-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02571-00691)

Line Name Age Relation Occupation Birthplace
41 Verner L Brus 47 Head Machinist Sweden
42 Ella Brus 69 Wife — Sweden
43 John Kretchman 78 Head — Germany
44 Lina Q Kretchman 78 Wife — Germany
45 Alfred Kretchman 52 Son Janitor New York
46 Adele Kretchman 44 Daughter Teacher New York
47 Adolph Edler 63 Head Butcher Germany
48 Joseph Edler 25 Son Receiving Clerk New York
49 Frederick Edler 34 Head Shipping Clerk New York
50 Marie Edler 33 Wife — New York
51 Marie Edler 3 Daughter — New York
52 Herman Walz 51 Head Platform Man Germany
53 Sigrid Walz 51 Wife — New York
54 Herman Jr Walz 27 Son Platform Man New York
55 Charles Walz 26 Son Waiter New York
56 Henrietta Walz 22 Daughter Pearl Stringer New York
57 Richard Walz 17 Son — New York
58 Margaret Walz 15 Daughter — New York
59 Leonard Walz 10 Son — New York
60 John J Dwyer 47 Head Ship Right Irish Free State
61 Elizabeth Dwyer 50 Wife — Irish Free State
62 Margaret Dwyer 16 Daughter — New York
63 Dennis Dwyer 16 Son — New York
64 Mary Dwyer THIS PERSON 14 Daughter — New York
65 Elizabeth Dwyer 12 Daughter — Irish Free State
66 Thera Dwyer 10 Daughter — Irish Free State
67 Michael Dwyer 8 Son — Irish Free State
68 Joseph Charney 46 Head Ship Clerk New Jersey
69 Rose Charney 31 Wife — West Virginia
70 Jean Charney 9 Daughter — Chicago
71 Margaret Rogers 30 Boarder Waitress Pennsylvania
72 Karl O Nelson 51 Head Laundry Man Norway
73 Marie Nelson 48 Wife — Norway
74 Karl Jr Nelson 22 Son Laborer New York
75 Grace Nelson 11 Daughter — New York
76 Hans Hansen 32 Boarder Porter Norway
77 Anne Grimstad 76 Head — Norway
78 Jenny Grimstad 44 Daughter Sample Maker Norway
79 Muck Grimstad 37 Daughter Sample Maker Norway
80 Esther Grimstad 35 Daughter Cook Norway

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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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