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Mary Coughlin — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Coughlin across the 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.

Age 12 b. ~1928 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationErie-County, New York
SurnameCoughlin
Given NameMary J.
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age12
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Buffalo city
1935 Residence (County)Erie
Additional Details
Highest GradeNo 5
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardBuffalo City
Est. Birth Year~1928

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.

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

Name Relation to head Relative to Mary Age Birth yr
Patricia Coughlin Daughter — 7 ~1933
Margie Coughlin Daughter — 8 ~1932
Rita Coughlin Daughter — 4 ~1936
William Coughlin Head — 39 ~1901
Frances Coughlin Daughter — ~1940
Mary Coughlin Daughter — 12 ~1928
Margaret Mcdonough Other — 59 ~1881
William Coughlin Son — 11 ~1929
Evelyn Heath Other — 24 ~1916
Margaret Coughlin Spouse — 36 ~1904

Census Appearances

1930
Erie, New …
Daughter, age 2
Erie, New York · implied b. ~1928 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Coughlin
Given Name Mary J
Relationship to Head daughter
Sex F
Color / Race White
Age 2
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation none
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Erie-County, New …
Daughter, age 12
Erie-County, New York · implied b. ~1928 — 10 household members
Surname Coughlin
Given Name Mary J.
Relationship to Head Daughter
Sex F
Color / Race White
Age 12
Marital Status Single
Birthplace New York
1935 Residence (City) Buffalo city
1935 Residence (County) Erie
Highest Grade No 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 Coughlin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Coughlin
Daughter · 1940 · age 12 · b. ~1928 · New York
★ You are viewing this record
Sibling
William Coughlin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margie Coughlin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Coughlin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Coughlin
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Coughlin
Sibling · 1940 · age 4
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 — Erie-County, New York Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-02824-00280)

Line Name Age Relation Occupation Birthplace
1 Myrtle Lovern 52 Head — Pennsylvania
2 Martin Lovern 27 Son Laborer New York
3 Joseph Lovern 13 Son — New York
4 Francis Lovern 12 Son — New York
5 Elizabeth Lovern 10 Daughter — New York
6 Clark Dietz 24 Head Grocery Clerk New York
7 Agnes Dietz 21 Wife Hair Dresser New York
8 Raymond Sangendorfer 32 Partner Assembler New York
9 Louise Sangendorfer 24 Partner's Wife — New York
10 Elizabeth Newton 57 Mother-in-law — Scotland
11 Edward J. Newton 17 Son Office Clerk New York
12 Janet Fairbairn 73 Boarder — New York
13 Jean Fairbairn 74 Boarder — New York
14 Calvin Witter 63 Head Machinist New York
15 Helen Witter 64 Wife — Ireland Free State
16 James Casey 58 Head Proprietor Ireland Free State
17 Mary Casey 58 Wife — Canada English
18 George Casey 23 Son — New York
19 William Coughlin 39 Head Sports Writer New York
20 Margaret Coughlin 36 Wife — New York
21 Mary J. Coughlin THIS PERSON 12 Daughter — New York
22 William M. Coughlin 11 Son — New York
23 Margie Coughlin 8 Daughter — New York
24 Patricia Coughlin 7 Daughter — New York
25 Rita Coughlin 4 Daughter — New York
26 Frances Coughlin 0 Daughter — New York
27 Evelyn Heath 24 Nurse Child Nurse West Virginia
28 Margaret Mcdonough 59 Mother-in-law Matron New York
29 Herbert Rick 44 Head Automobile Mechanic New York
30 Mary Rick 40 Wife — New York
31 Audrey Rick 15 Daughter — New York
32 Clara Rick 11 Daughter — New York
33 Shirley Rick 9 Daughter — New York
34 Joan Rick 5 Daughter — New York
35 Herbert Jr. Rick 1 Son — New York
36 Fred Schmidt 72 Head — Germany
37 Katherine Schmidt 69 Wife — Germany
38 Albertine Mayskopf 47 Daughter — New York
39 Marion Schmidt 29 Daughter Public School Teacher 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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