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Margaret Duffy — 1940 US Census Record

Model Tree available

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

Our Model Tree links this Margaret Duffy across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Harry & Henry — first a daughter (b.~1913), then head of a 3-person household.

Age 27 b. ~1913 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationKings-County, New York
SurnameDuffy
Given NameMargaret
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age27
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)N.Y. City
1935 Residence (County)Kings
Additional Details
Occupationstenographer
Industryflour mills
Class of WorkerPW
Hours Worked48
Income (1939)980
Highest GradeHs 4
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationStenographer
Township / WardNy City
Est. Birth Year~1913

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.

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

Name Relation to head Relative to Margaret Age Birth yr
Harry Duffy Head — 52 ~1888
Margaret Duffy Spouse — 52 ~1888
Margaret Duffy Daughter — 27 ~1913

Census Appearances

1920
Kings, New …
Daughter, age 6
Kings, New York · implied b. ~1914 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Duffy
Given Name Margaret
Relationship to Head Daughter
Sex F
Color / Race White
Age 6
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
1930
Kings, New …
Daughter, age 17
Kings, New York · implied b. ~1913 — 2 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Duffy
Given Name Margaret
Relationship to Head Daughter
Sex F
Color / Race White
Age 17
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation Operator
Industry Telephone
Class of Worker W
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Kings-County, New …
Daughter, age 27
Kings-County, New York · implied b. ~1913 — 3 household members
Surname Duffy
Given Name Margaret
Relationship to Head Daughter
Sex F
Color / Race White
Age 27
Marital Status Single
Birthplace New York
1935 Residence (City) N.Y. City
1935 Residence (County) Kings
Occupation stenographer
Industry flour mills
Class of Worker PW
Hours Worked 48
Income (1939) 980
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 Duffy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Duffy (~0.92 confidence) and father Henry Duffy (~0.92 confidence) and mother Margaret Duffy (~0.92 confidence) and mother Margaret Duffy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Harry Duffy
b. ~1888
Source father
● Household · direct · ~0.92
Father
Henry Duffy
b. ~1886
Source father
● Household · direct · ~0.92
Mother
Margaret Duffy
b. ~1888
Source mother
● Household · direct · ~0.92
Mother
Margaret Duffy
b. ~1889
Source mother
● Household · direct · ~0.92
This person
Anchor record
Margaret Duffy
Daughter · 1940 · age 27 · b. ~1913 · New York
★ You are viewing this record
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-t0627-02574-00255)

Line Name Age Relation Occupation Birthplace
41 Fred Eckes 40 Head Investment New York
42 Charlotte Eckes 42 Wife — New Jersey
43 Warren Eckes 15 Son — New York
44 Kenneth Eckes 6 Son — New York
45 Emma Lindsey 73 Mother-in-law — Germany
46 William Savarase 54 Head Traffic Mgr. New York
47 Emily Savarase 57 Wife — England
48 Dorothy Palumbo 28 Daughter — New York
49 Ceasar Palumbo 27 Son-in-law Agent New York
50 William Palumbo 0 Grandson — New York
51 Edith Romahon 50 Head — New York
52 John Romahon 28 Son Sales-Broker New York
53 Blanche Romahon 27 Daughter Stenographer New York
54 Robert Romahon 25 Son Office Clerk New York
55 Abner Racey 39 Head Mgr. New York
56 Gerda Racey 40 Wife — Sweden
57 Karl Christenson 28 Head Clerk New York
58 Dorothy Christenson 27 Wife — New York
59 Donald Christenson 2 Son — New York
60 Edna Thompson 53 Mother-in-law — New Jersey
61 Lester Sorum 25 Head Representative New York
62 Marion Sorum 25 Wife — New York
63 Charles Sorum 2 Son — New York
64 Mother Ingallson 64 Mother — Norway
65 Earl Graham 19 Lodger Field Representative New York
66 Florence Kearney 36 Head Accountant New York
67 Margaret Kearney 47 Sister — New York
68 Frank Kearney 41 Brother Fire Inspector New York
69 Loretta Kearney 33 Sister Clerk New York
70 John Lyons 59 Head Pilot Maryland
71 Mary Lyons 50 Wife — New York
72 John Lyons 16 Son — New York
73 George Murphy 45 Son-in-law Laborer New York
74 Gerard Lavern 41 Head Captain Norway
75 Janney Carelli 29 Daughter — New York
76 John Carelli 5 Son — New York
77 Joseph Carelli 1 Son — New York
78 Harry Duffy 52 Head Pressman New York
79 Margaret Duffy 52 Wife — New York
80 Margaret Duffy THIS PERSON 27 Daughter Stenographer New York

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Pedigree Summary

Margaret
Gen 1 · 4 parents ~0.92
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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