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William Duffy — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Queens, New York

Our Model Tree links this William Duffy across the 1920 and 1930 US Censuses in Queens, New York (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 9-person household.

Age 11 b. ~1919 Male Son Born: New York Single

1930 Census Record Details

Census Year1930
LocationQueens, New York
SurnameDuffy
Given NameWilliam
Relationship to HeadSon
SexM
Color / RaceWhite
Age11
Marital StatusSingle
BirthplaceNew York
Father's BirthplaceNew York
Mother's BirthplaceNew York
Additional Details
Occupationnone
Can Read/WriteYes
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardLong Island City
Est. Birth Year~1919

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 1930 census.

Name Relation to head Relative to William Age Birth yr
Catherine Duffy Daughter — 14 ~1916
Thomas Duffy Son — 15 ~1915
Mary Duffy Spouse — 41 ~1889
William Duffy Son — 11 ~1919
Dorothy Duffy Daughter — 6 ~1924
Elizabeth Duffy Other — 65 ~1865
Louise Duffy Other — 51 ~1879
Thomas Duffy Head — 47 ~1883
Robert Duffy Son — 2 ~1928

Census Appearances

1920
New York, …
Son, age 1
New York, New York · implied b. ~1919 — 3 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Duffy
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 1
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
1930
Queens, New …
Son, age 11
Queens, New York · implied b. ~1919 — 9 household members
Surname Duffy
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation none
Can Read/Write Yes
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 William Duffy across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Duffy
Son · 1930 · age 11 · b. ~1919 · New York
★ You are viewing this record
Sibling
Robert Duffy
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Duffy
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Duffy
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Duffy
Sibling · 1930 · age 6
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

1930 US Federal Census — Queens, New York Open full size

Page Contents

50 people indexed on this census page (ia:1930:newyorkcensus00reel1585:0606)

Line Name Age Relation Occupation Birthplace
51 Adolph Staltenberg 53 Head Chef Germany
52 Anna Staltenberg 45 Wife Housework Hungary
53 Ernest Staltenberg 15 Son Clerk New York
54 Angelina Leone 49 Head None Italy
55 Angelo Leone 27 Son Chauffeur New York
56 Dominick Leone 23 Son Inspector New York
57 Joseph Leone 20 Son Shipping Clerk New York
58 Josephine Leone 18 Daughter None New York
59 Dominick Dominick 41 Head None Italy
60 Angeline Dominick 47 Wife None Italy
61 James Dominick 21 Son Printer New York
62 Ralph Dominick 18 Son Laborer New York
63 John Dominick 16 Son None New York
64 Philip Dominick 14 Son None New York
65 Ella Maggi 41 Head None New York
66 Adeline Maggi 12 Daughter None New York
67 Anthony Maggi 7 Son None New York
68 Cosimo Campisi 22 Niece None New York
69 Edward Dempsey 53 Head None Irish Free State
70 Catherine Dempsey 51 Wife None Irish Free State
71 Thomas Dempsey 4 Son None New York
72 Thomas Duffy 47 Head None New York
73 Mary Duffy 41 Wife None New York
74 Thomas Duffy 15 Son None New York
75 Catherine Duffy 14 Daughter None New York
76 William Duffy THIS PERSON 11 Son None New York
77 Dorothy Duffy 6 Daughter None New York
78 Robert Duffy 2 Son None New York
79 Elizabeth Duffy 65 Mother None Germany
80 Louise Duffy 51 Sister None New York
81 James Mcardle 51 Head None Northern Ireland
82 Alice Mcardle 45 Wife None New York
83 Patricia Mcardle 11 Daughter None New York
84 Christian Muller 41 Head None New York
85 Anna Muller 41 Wife None New York
86 Alice Muller 13 Daughter None New York
87 Richard Fum 40 Head None New York
88 Anna Fum 40 Wife None New York
89 Henrietta Fum 11 Daughter Typist New York
90 Thomas Fum 17 Son None New York
91 Edward Fum 15 Son None New York
92 Richard Jr. Fum 6 Son None New York
93 Sara Salerno 67 Head None Germany
94 William Salerno 37 Son Salesman Germany
95 Joseph Rainy 50 Head Contractor Italy
96 Anna Rainy 46 Wife None Italy
97 Arthur Rainy 24 Son Contractor New York
98 Dominick Rainy 20 Son Contractor New York
99 John L. Daily 38 Head Proprietor New York
100 Gertrude H. Daily 34 Wife None Massachusetts

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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