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John Donnelly — 1930 US Census Record

Model Tree available

1930 United States Federal Census · Essex, New Jersey

Our Model Tree links this John Donnelly across the 1910, 1920 and 1930 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed), with identified parents Charles & John — first a son (b.~1908), then head of a 5-person household.

Age 22 b. ~1908 Male Son Born: New Jersey Single

1930 Census Record Details

Census Year1930
LocationEssex, New Jersey
SurnameDonnelly
Given NameJohn T.
Relationship to HeadSon
SexM
Color / RaceWhite
Age22
Marital StatusSingle
BirthplaceNew Jersey
Father's BirthplaceNew Jersey
Mother's BirthplaceNew Jersey
Additional Details
OccupationChauffeur
IndustryMeat
Class of WorkerW
Can Read/WriteYes
VeteranNo
Birth StateNew Jersey
Birth CountryUnited States
Birthplace (normalized)new jersey
OccupationChauffeur
Township / WardNewark City
Est. Birth Year~1908

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 1930 census.

Name Relation to head Relative to John Age Birth yr
Jane Donnelly Daughter — 13 ~1917
John Donnelly Head — 54 ~1876
Wm Donnelly Son — 16 ~1914
John Donnelly Son — 22 ~1908
Marg Donnelly Spouse — 47 ~1883

Census Appearances

1910
Essex, New …
Son, age 2
Essex, New Jersey · implied b. ~1908 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Donnelly
Given Name John J
Relationship to Head Son
Sex M
Color / Race White
Age 2
Marital Status Single
Birthplace New Jersey
Father's Birthplace New Jersey
Mother's Birthplace New Jersey
Occupation none
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey
1920
Essex, New …
Son, age 12
Essex, New Jersey · implied b. ~1908 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Donnaly
Given Name John
Relationship to Head son
Sex M
Color / Race White
Age 12
Marital Status Single
Birthplace New Jersey
Father's Birthplace New Jersey
Mother's Birthplace New Jersey
Occupation none
Can Read Yes
Can Write Yes
Speaks English Yes
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey
1930
Essex, New …
Son, age 22
Essex, New Jersey · implied b. ~1908 — 5 household members
Surname Donnelly
Given Name John T.
Relationship to Head Son
Sex M
Color / Race White
Age 22
Marital Status Single
Birthplace New Jersey
Father's Birthplace New Jersey
Mother's Birthplace New Jersey
Occupation Chauffeur
Industry Meat
Class of Worker W
Can Read/Write Yes
Veteran No
Birth State New Jersey
Birth Country United States
Birthplace (normalized) new jersey

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 John Donnelly across 3 US Census years (1910, 1920 and 1930) in Essex, New Jersey, using XGBoost record linkage. Identified parents: father Charles Donnaly (~0.92 confidence) and father John Donnelly (~0.92 confidence) and mother Nellie Donnaly (~0.92 confidence) and father John Donnelly (~0.92 confidence) and mother Margaret Donnelly (~0.92 confidence) and mother Marg Donnelly (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Charles Donnaly
b. ~1871
Source father
● Household · direct · ~0.92
Father
John Donnelly
b. ~1875
Source father
● Household · direct · ~0.92
Mother
Nellie Donnaly
b. ~1875
Source mother
● Household · direct · ~0.92
Father
John Donnelly
b. ~1876
Source father
● Household · direct · ~0.92
Mother
Margaret Donnelly
b. ~1882
Source mother
● Household · direct · ~0.92
Mother
Marg Donnelly
b. ~1883
Source mother
● Household · direct · ~0.92
This person
Anchor record
John Donnelly
Son · 1930 · age 22 · b. ~1908 · New Jersey
★ You are viewing this record
Sibling
Jane Donnelly
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wm Donnelly
Sibling · 1930 · age 16
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 — Essex, New Jersey Open full size

Page Contents

51 people indexed on this census page (ia:1930:newjerseycensus00reel1335:0776)

Line Name Age Relation Occupation Birthplace
51 Jos. Cannon 44 Boarder Laborer New Jersey
52 Wm. Cannon 42 Boarder — New Jersey
53 Julius Johnson 31 Head Laborer North Carolina
54 Lulu Johnson 27 Wife — North Carolina
55 Frank Johnson 11 Son — North Carolina
56 Paul Johnson 9 Son — North Carolina
57 Eliza Johnson 7 Daughter — North Carolina
58 Anna Salter 61 Head — North Carolina
59 Isabel Williams 30 Head — North Carolina
60 Jas. Williams 5 Son — New Jersey
61 Rosie James 50 Boarder — North Carolina
62 Birdie Collins 44 Head — Alabama
63 Aladel Collins 28 Wife — Alabama
64 Alfred Collins 2 Son — New Jersey
65 Birdie Collins 1 Son — New Jersey
66 Jas Hardy 37 Head Laborer Alabama
67 Anie Hardy 32 Wife — Alabama
68 Wm Hardy 15 Son Laborer Alabama
69 Onell Hardy 15 Son — Alabama
70 Jos Carey 30 Head Porter Ireland
71 Mary Carey 24 Wife — Ireland
72 Katlen Carey 5 Daughter — New Jersey
73 Chas Carey 2 Son — New Jersey
74 Jos Hogan 13 Stepson — New Jersey
75 Marg Hogan 8 Stepdaughter — New Jersey
76 Thos Dunn 69 Head — New Jersey
77 Annie Dunn 63 Wife — Ireland
78 Thos Farrel 12 Adop Son — New Jersey
79 Wm Barns 75 Head Laborer Virginia
80 Bertha Barns 60 Wife — Virginia
81 Cath Johnson 42 Head — New Jersey
82 John S. Sauer 58 Head Laborer New Jersey
83 Julia Richardson 30 Head Laundress Georgia
84 John Donnelly 54 Head Cont. New Jersey
85 Marg Donnelly 47 Wife — New Jersey
86 John T. Donnelly THIS PERSON 22 Son Chauffeur New Jersey
87 Wm Donnelly 16 Son Clerk New Jersey
88 Jane Donnelly 13 Daughter — New Jersey
89 Cath Renaud 67 Head — New Jersey
90 Francis Rogers 25 Head Mechanic New Jersey
91 Edna Rogers 25 Wife Escalator New Jersey
92 Irene Rogers 7 Daughter — New Jersey
93 Edward Rogers 5 Son — New Jersey
94 John Dixon 46 Head Contractor Pennsylvania
95 Marg. Dixon 46 Wife — New York
96 Edward Dixon 27 Son Timekeep New Jersey
97 Wm. Dixon 21 Son Clerk New Jersey
98 Jos Dixon 18 Son Chauffeur New Jersey
99 Walker Harkman 36 Head Chauffeur New Jersey
100 Bertha Harkman 23 Wife — Massachusetts
101 Walker Jr. Harkman 3 Son — New Jersey

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Pedigree Summary

John + 2 siblings
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 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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