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Mary Maher — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Maher across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 9-person household.

Age 15 b. ~1925 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationKings-County, New York
SurnameMaher
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age15
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)Kings
Additional Details
Class of Worker0
Hours Worked0
Highest GradeHs 5
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardNew York City
Est. Birth Year~1925

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
William Maher Son — 24 ~1916
James Maher Son — 20 ~1920
Catherine Maher Daughter — 8 ~1932
Katie Maher Spouse — 46 ~1894
Alfred Maher Daughter — 7 ~1933
John Maher Head — 47 ~1893
Mary Maher Daughter — 15 ~1925
Lillian Maher Daughter — 17 ~1923
Joseph Maher Son — 11 ~1929

Census Appearances

1930
Kings, New …
Daughter, age 5
Kings, New York · implied b. ~1925 — 18 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Maher
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 5
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Kings-County, New …
Daughter, age 15
Kings-County, New York · implied b. ~1925 — 9 household members
Surname Maher
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 15
Marital Status Single
Birthplace New York
1935 Residence (City) New York City
1935 Residence (County) Kings
Class of Worker 0
Hours Worked 0
Highest Grade Hs 5
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 Maher across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Maher
Daughter · 1940 · age 15 · b. ~1925 · New York
★ You are viewing this record
Sibling
William Maher
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Maher
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Maher
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Maher
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Maher
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Maher
Sibling · 1940 · age 11
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-t0627-02578-00115)

Line Name Age Relation Occupation Birthplace
1 Patrick Doherty 72 Head Mason Newfoundland
2 Margaret Doherty 68 Wife — Newfoundland
3 Lagrande Gumble 62 Head — New York
4 Katherine Gumble 37 Wife Senior Clerk New Jersey
5 Charles E. Gumble 66 Brother Assembler New York
6 Joseph Connelly 51 Head Mail Handler Illinois
7 Mary Connelly 49 Wife — New York
8 Joseph M. Connelly 15 Son — New York
9 Richard P. Connelly 13 Son — New York
10 James D. Connelly 11 Son — New York
11 Mary A. Connelly 8 Daughter — New York
12 Joseph Savino 8 Lodger — New York
13 Josephine Brower 61 Head Janitor New York
14 Sidney Brower 20 Son Stock Clerk New York
15 Arthur Olson 50 Son-in-law Service Man New York
16 Mary Olson 36 Daughter — New York
17 Arthur Olson 18 Grandson New Worker New York
18 Eleanor Baysey 31 Daughter — New York
19 John Bledsoe 37 Head Helper New York
20 Edna Bledsoe 28 Wife — New York
21 Irene Bledsoe 8 Daughter — New York
22 John Bledsoe 6 Son — New York
23 Mary Bledsoe 6 Daughter — New York
24 Wilfred Bledsoe 3 Son — New York
25 Walter Webb 40 Lodger Printer New York
26 Alice Mchugh 72 Head — New York
27 Walter Mchugh 50 Son Mixer New York
28 Willie Mchugh 40 Son Helper New York
29 John Maher 47 Head Street Sweeper New York
30 Katie Maher 46 Wife — New York
31 William Maher 24 Son Mechanic New York
32 James Maher 20 Son Mechanic New York
33 Lillian Maher 17 Daughter New Worker New York
34 Mary Maher THIS PERSON 15 Daughter — New York
35 Joseph Maher 11 Son — New York
36 Catherine Maher 8 Daughter — New York
37 Alfred Maher 7 Daughter — New York
38 John Lehane 39 Head Inspector New York
39 Catherine Lehane 33 Wife — New York
40 Joseph Lehane 6 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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