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James Duffy — 1900 US Census Record

Model Tree available

1900 United States Federal Census · New York, New York

Our Model Tree links this James Duffy across the 1900, 1910 and 1920 US Censuses in New York, New York (XGBoost, ~Confirmed), with identified parents Patrick & Sarah — first a son (b.~1899), then head of a 5-person household.

Age 1 b. ~1899 Male Son Born: New York Single

1900 Census Record Details

Census Year1900
LocationNew York, New York
SurnameDuffy
Given NameJames
Relationship to HeadSon
SexM
Color / RaceWhite
Age1
Marital StatusSingle
BirthplaceNew York
Birth MonthFeb
Birth Year1899
Father's BirthplaceIreland
Mother's BirthplaceIreland
Additional Details
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardNew York Borough Of Manhattan
Est. Birth Year~1899

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.

5 people recorded at the same address in the 1900 census.

Name Relation to head Relative to James Age Birth yr
Annie Duffy Daughter — 3 ~1897
Patrick Duffy Head — 30 ~1870
Thomas Fleming Other — 40 ~1860
James Duffy Son — 1 ~1899
Rose Duffy Spouse — 31 ~1869

Census Appearances

1900
New York, …
Son, age 1
New York, New York · implied b. ~1899 — 5 household members
Surname Duffy
Given Name James
Relationship to Head Son
Sex M
Color / Race White
Age 1
Marital Status Single
Birthplace New York
Birth Month Feb
Birth Year 1899
Father's Birthplace Ireland
Mother's Birthplace Ireland
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1910
New York, …
Son, age 11
New York, New York · implied b. ~1899 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Duffey
Given Name James
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace New York
Father's Birthplace Ireland
Mother's Birthplace Ireland
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1920
New York, …
Son, age 20
New York, New York · implied b. ~1900 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Duffey
Given Name James
Relationship to Head Son
Sex M
Color / Race White
Age 20
Marital Status Single
Birthplace New York
Father's Birthplace Ireland
Mother's Birthplace Ireland
Occupation Apprentice
Industry Telegraph Co.
Class of Worker W
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 James Duffy across 3 US Census years (1900, 1910 and 1920) in New York, New York, using XGBoost record linkage. Identified parents: father Patrick Fullen (~0.92 confidence) and mother Sarah Fullen (~0.92 confidence) and mother Rose Duffy (~0.92 confidence) and father Patrick Duffy (~0.92 confidence) and father Laurence Duffey (~0.92 confidence) and mother Mary Duffey (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Patrick Fullen
b. ~1851
Source father
● Household · direct · ~0.92
Mother
Sarah Fullen
b. ~1864
Source mother
● Household · direct · ~0.92
Mother
Rose Duffy
b. ~1869
Source mother
● Household · direct · ~0.92
Father
Patrick Duffy
b. ~1870
Source father
● Household · direct · ~0.92
Father
Laurence Duffey
b. ~1876
Source father
● Household · direct · ~0.92
Mother
Mary Duffey
b. ~1885
Source mother
● Household · direct · ~0.92
This person
Anchor record
James Duffy
Son · 1900 · age 1 · b. ~1899 · New York
★ You are viewing this record
Sibling
Annie Duffy
Sibling · 1900 · age 3
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

1900 US Federal Census — New York, New York Open full size

Page Contents

50 people indexed on this census page (ia:1900:12thcensusofpopu1087unit:0353)

Line Name Age Relation Occupation Birthplace
51 Bridget O'Malley 35 Head Upholsterer Ireland
52 Mary O'Malley 30 Sister Shirtmaker Ireland
53 Patrick Duffy 30 Head Street Cleaner Ireland
54 Rose Duffy 31 Wife — Ireland
55 Annie Duffy 2 Daughter — New York
56 James Duffy THIS PERSON 1 Son — New York
57 Thomas Fleming 40 Boarder Street Cleaner Ireland
58 Walter Irving 25 Head Truckman New York
59 Alice Irving 20 Wife — New York
60 Annie Irving 5 Daughter — New York
61 Edward Irving None Son — New York
62 Eliza Gold 49 Mother in law — New York
63 John Adkins 58 Head Truckman Germany
64 Bertha Adkins 55 Wife — Germany
65 Minnie Adkins 25 Daughter Dressmaker New York
66 Rebecca Colman 13 Boarder — New York
67 Thomas Mason 34 Head Asst Fireman New York
68 Margaret Mason 29 Wife — Ireland
69 Mamie Mason 8 Daughter — New York
70 Nellie Mason 7 Daughter — New York
71 Catherine Mesalay|Mesalay 53 Mother in law Housekeeper Germany
72 William Mesalay|Mesalay 25 Son Laborer New York
73 Elizabeth Mesalay|Mesalay 21 Daughter Housework New York
74 Anna Mesalay|Mesalay 19 Daughter Crackerpacker New York
75 Francis J Mesalay|Mesalay 14 Son Errand Boy New York
76 Margaret Mesalay|Mesalay 11 Daughter — New York
77 James Malone 35 Head Truckman Ireland
78 Mary Malone 27 Wife — Ireland
79 Joseph Malone 5 Son — New York
80 James Malone 3 Son — New York
81 Thomas Malone 1 Son — New York
82 Michael Mcguinness 26 Boarder Conductor Ireland
83 Mary Woods 60 Head — New York
84 John Woods 26 Son Truckman New York
85 William Everwine 30 Head Truckman New York
86 Dora Everwine 25 Wife — New York
87 Carrie Everwine 5 Daughter — New York
88 William Everwine 2 Son — New York
89 Thomas Abbott 60 Head Laborer Ireland
90 Rebecca Abbott 25 Daughter Forelady New York
91 Archie Mcconnell 50 Head Laborer New York
92 Mary Mcconnell 40 Wife — Scotland
93 Mary Mcconnell 5 Daughter — New York
94 Mary Mcgowan 20 Boarder Electrician New York
95 Agnes Mcgowan 18 Boarder Factory Girl New York
96 Robert Mcgowan 15 Boarder Laborer New York
97 Henry R Postel 39 Head Cigarmaker New York
98 Sophie Postel 25 Wife — New York
99 Ruth Postel 2 Daughter — New York
100 George Postel 1 Son — New York

Search for James Duffy

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Pedigree Summary

James + 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 1900 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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