YourRoots by Genomelink
Sign up free
WD

William Duffy — 1920 US Census Record

Model Tree available

1920 United States Federal Census · New York, New York

Our Model Tree links this William Duffy across the 1900, 1910 and 1920 US Censuses in New York, New York (XGBoost, ~Confirmed), with identified parents Thomas & William — first a son (b.~1892), then head of a 4-person household.

Age 28 b. ~1892 Male Son Born: New York Single

1920 Census Record Details

Census Year1920
LocationNew York, New York
SurnameDuffy
Given NameWilliam
Relationship to HeadSon
SexM
Color / RaceWhite
Age28
Marital StatusSingle
BirthplaceNew York
Father's BirthplaceNew York
Mother's BirthplaceNew York
Additional Details
Can ReadYes
Can WriteYes
Speaks EnglishYes
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardManhattan Boro
Est. Birth Year~1892

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.

4 people recorded at the same address in the 1920 census.

Name Relation to head Relative to William Age Birth yr
Thomas Duffy Head — 58 ~1862
Mary Duffy Daughter — 22 ~1898
Mary Duffy Spouse — 52 ~1868
William Duffy Son — 28 ~1892

Census Appearances

1900
New York, …
Son, age 9
New York, New York · implied b. ~1891 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Duffy
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 9
Marital Status Single
Birthplace New York
Birth Year 1891
Father's Birthplace New York
Mother's Birthplace New York
Can Read Yes
Can Write Yes
Speaks English Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1910
New York, …
Son, age 18
New York, New York · implied b. ~1892 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Duffey
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 18
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Can Read Yes
Can Write Yes
Speaks English English
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1920
New York, …
Son, age 28
New York, New York · implied b. ~1892 — 4 household members
Surname Duffy
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 28
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Can Read Yes
Can Write Yes
Speaks English 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.
Model Tree available
Our Model Tree links William Duffy across 3 US Census years (1900, 1910 and 1920) in New York, New York, using XGBoost record linkage. Identified parents: father Thomas Duffy (~0.92 confidence) and father William Duffy (~0.92 confidence) and mother Mary Duffy (~0.92 confidence) and mother Alice Duffy (~0.92 confidence) and mother Mary Duffey (~0.92 confidence) and father William Duffey (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Thomas Duffy
b. ~1862
Source father
● Household · direct · ~0.92
Father
William Duffy
b. ~1866
Source father
● Household · direct · ~0.92
Mother
Mary Duffy
b. ~1868
Source mother
● Household · direct · ~0.92
Mother
Alice Duffy
b. ~1869
Source mother
● Household · direct · ~0.92
Mother
Mary Duffey
b. ~1869
Source mother
● Household · direct · ~0.92
Father
William Duffey
b. ~1869
Source father
● Household · direct · ~0.92
This person
Anchor record
William Duffy
Son · 1920 · age 28 · b. ~1892 · New York
★ You are viewing this record
Sibling
Mary Duffy
Sibling · 1920 · age 22
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

1920 US Federal Census — New York, New York Open full size

Page Contents

50 people indexed on this census page (ia:1920:14thcensusofpopu1272unit:1062)

Line Name Age Relation Birthplace
1 Margaret Durand 40 Mother Ireland
2 John Durand 16 Son New York
3 Mary Durand 14 Daughter New York
4 Margaret Durand 12 Daughter New York
5 Nora Durand 10 Daughter New York
6 Daniel Durand 8 Son New York
7 Joseph Durand 5 Son New York
8 Patrick Reilly 58 Head Ireland
9 Margaret Reilly 53 Wife Ireland
10 Philip Reilly 28 Son New York
11 Laurence Reilly 22 Son New York
12 Gertrude Reilly 20 Daughter New York
13 Margaret Reilly 18 Daughter New York
14 George Drew 45 Head Ireland
15 Nellie Drew 42 Wife Ireland
16 Mary Drew 18 Daughter New York
17 John Drew 16 Son New York
18 George Drew 15 Son New York
19 William Drew 14 Son New York
20 Gregory Drew 13 Son New York
21 George Houlahan 42 Head New York
22 Mary Houlahan 40 Wife New York
23 Leo Houlahan 14 Son New York
24 Dennis Lyons 60 Head Ireland
25 Mary Lyons 50 Wife Ireland
26 James Lyons 18 Son New York
27 James Lyons 15 Nephew Ireland
28 Alice Gearity 45 Head New York
29 Michael Gearity 26 Son New York
30 David Gearity 17 Son New York
31 Charles Gearity 15 Son New York
32 Helen Gearity 10 Daughter New York
33 Rita Gearity 8 Daughter New York
34 Thomas Duffy 58 Head New York
35 Mary Duffy 52 Wife New York
36 William Duffy THIS PERSON 28 Son New York
37 Mary Duffy 22 Daughter New York
38 Mary Butler 38 Head New York
39 Owen Culligan 30 Brother New York
40 August Vollmer 35 Head Germany
41 Annie Vollmer 32 Wife New York
42 Mary Vollmer 10 Daughter New York
43 Annie Vollmer 8 Daughter New York
44 Thomas Vollmer 6 Son New York
45 Francis Vollmer 4 Son New York
46 James White 40 Head New York
47 Margaret White 38 Wife New York
48 Margaret White 13 Daughter New York
49 Alice White 11 Daughter New York
50 James White 9 Son New York

Search for William Duffy

All William Duffy Census Records Discover Duffy Family Tree

Pedigree Summary

William + 1 sibling
Gen 1 · 6 parents ~0.92
Max depth 4 (1900–1950 window)

About This Record & Model Tree

This record was independently indexed by YourRoots from the 1920 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)

Report inaccurate data
👤 View Profile 🌳 Ancestors 👥 Descendants