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James Mcmahon — 1930 US Census Record

Model Tree available

1930 United States Federal Census · New York, New York

Our Model Tree links this James Mcmahon across the 1910, 1920 and 1930 US Censuses in New York, New York (XGBoost, ~Confirmed), with identified parents James & Nellie — first a son (b.~1906), then head of a 9-person household.

Age 24 b. ~1906 Male Son Born: New York Single

1930 Census Record Details

Census Year1930
LocationNew York, New York
SurnameMcMahon
Given NameJames
Relationship to HeadSon
SexM
Color / RaceWhite
Age24
Marital StatusSingle
BirthplaceNew York
Father's BirthplaceNew York
Mother's BirthplaceNew York
Additional Details
OccupationChauffeur
IndustryPrivate Family
Class of WorkerW
Can Read/WriteYes
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationChauffeur
Township / WardNew York City
Est. Birth Year~1906

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 James Age Birth yr
Marjory Mcmahon Daughter — 16 ~1914
Rose Mcmahon Daughter — 19 ~1911
Hannah Mcmahon Daughter — 21 ~1909
James Mcmahon Head — 62 ~1868
Margaret Mcmahon Other — 47 ~1883
William Mcmahon Son — 18 ~1912
James Mcmahon Son — 24 ~1906
John Mcmahon Son — 27 ~1903
Charles Mcmahon Son — 12 ~1918

Census Appearances

1910
New York, …
Son, age 4
New York, New York · implied b. ~1906 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McMahon
Given Name James
Relationship to Head Son
Sex M
Color / Race White
Age 4
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Can Write English
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1920
New York, …
Son, age 13
New York, New York · implied b. ~1907 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McMahon
Given Name James
Relationship to Head Son
Sex M
Color / Race White
Age 13
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
1930
New York, …
Son, age 24
New York, New York · implied b. ~1906 — 9 household members
Surname McMahon
Given Name James
Relationship to Head Son
Sex M
Color / Race White
Age 24
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation Chauffeur
Industry Private Family
Class of Worker W
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.
Model Tree available
Our Model Tree links James Mcmahon across 3 US Census years (1910, 1920 and 1930) in New York, New York, using XGBoost record linkage. Identified parents: father James Mcmahon (~0.92 confidence) and mother Nellie Mcmahon (~0.92 confidence) and father Miles Mcmahon (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
James Mcmahon
b. ~1868
Source father
● Household · direct · ~0.92
Mother
Nellie Mcmahon
b. ~1883
Source mother
● Household · direct · ~0.92
Father
Miles Mcmahon
b. ~1884
Source father
● Household · direct · ~0.92
This person
Anchor record
James Mcmahon
Son · 1930 · age 24 · b. ~1906 · New York
★ You are viewing this record
Sibling
William Mcmahon
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mcmahon
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mcmahon
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcmahon
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjory Mcmahon
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hannah Mcmahon
Sibling · 1930 · age 21
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 — New York, New York Open full size

Page Contents

50 people indexed on this census page (ia:1930:newyorkcensus00reel1576:0894)

Line Name Age Relation Occupation Birthplace
51 David P. Lurick 50 Head Physician Latavia
52 Hannah F. Lurick 47 Wife-H None New York
53 Betty J. Lurick 17 Daughter None New York
54 David A. Lurick 4 Son None New York
55 Louis Finkelstein Lurick 81 Father-in-l None Latavia
56 Harry L. Lubin 37 Head Auditor New York
57 Mollie Lubin 36 Wife-H Teacher New York
58 Barbara Lubin 5 Daughter None New York
59 Frances S. Lurck 44 Sister Teacher Latavia
60 Frances Lunn 30 Servant Servant New York
61 Rita L. Samstag 21 Servant Servant Germany
62 John T. Boyd 67 Head None New York
63 Margaret H. Boyd 69 Wife-H None New York
64 James Mcmahon 62 Head Promoter New York
65 Margaret Mcmahon 47 Wife-H None New York
66 John Mcmahon 27 Son Detective New York
67 James Mcmahon THIS PERSON 24 Son Chauffeur New York
68 Hannah Mcmahon 21 Daughter Operator New York
69 Rose Mcmahon 19 Daughter Operator New York
70 William Mcmahon 18 Son Clerk New York
71 Marjory Mcmahon 16 Daughter None New York
72 Charles Mcmahon 12 Son None New York
73 Antonio Palermo 56 Head None Italy
74 Filina Palermo 52 Wife-H None Italy
75 Anthony Palermo 34 Son Physician New York
76 James Polinai 39 Son-in-l Baker New York
77 Frances Polinai 33 Daughter None New York
78 Joseph Polinai 8 Grandson None New York
79 Anthony Polinai 5 Grandson None New York
80 James Polinai 3 Grandson None New York
81 Robert Polinai 1 Grandson None New York
82 Joseph Polucci 31 Head Manager New York
83 Mary Polucci 27 Wife-H None New York
84 Joseph Jr. Polucci 7 Son None New York
85 Antoinette Polucci 3 Daughter None New York
86 Rose Gloria Polucci 1 Daughter None New York
87 Brown Sanfilippo 30 Head Accountant New York
88 Jean Sanfilippo 26 Wife-H None New York
89 Daniel Sanfilippo 0 Son None New York
90 Elizabeth Braun 58 Head-H Caretaker Germany
91 Muriel Braun 15 Daughter None Australia
92 Lee Mason 64 Lodger Artist New York
93 Clarence E. Carr 50 Lodger Salesman New Jersey
94 Frank C. Harricken 41 Lodger Plasterer New York
95 Alice E. Carr 27 Lodger Saleswoman Florida
96 Thomas Sheils 49 Lodger Broker New York
97 Theresa Sheils 22 Lodger Clerk New York
98 Hyman Appelbaum 28 Lodger Beater Boy Poland
99 John St Laurent 35 Lodger Brick Layer Canada-French
100 Frank Sheils 36 Lodger Agent New York

Search for James Mcmahon

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Pedigree Summary

James + 6 siblings
Gen 1 · 3 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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