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Thomas Mcmahon — 1920 US Census Record

Model Tree available

1920 United States Federal Census · Kings, New York

Our Model Tree links this Thomas Mcmahon across the 1900, 1910 and 1920 US Censuses in Kings, New York (XGBoost, ~Confirmed), with identified parents Daniel & Daniel — first a son (b.~1899), then head of a 9-person household.

Age 21 b. ~1899 Male Son Born: New York Single

1920 Census Record Details

Census Year1920
LocationKings, New York
SurnameMcMahon
Given NameThomas
Relationship to HeadSon
SexM
Color / RaceWhite
Age21
Marital StatusSingle
BirthplaceNew York
Father's BirthplaceNew York
Mother's BirthplaceNew York
Additional Details
OccupationHelper
IndustryShip building
Class of WorkerW
Can ReadYes
Can WriteYes
Speaks EnglishYes
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationHelper
Township / WardBrooklyn Borough
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.

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

Name Relation to head Relative to Thomas Age Birth yr
Mary Mcmahon Daughter — 14 ~1906
Patrick Mcmahon Son — 11 ~1909
Daniel Mcmahon Head — 53 ~1867
Daniel Mcmahon Son — 19 ~1901
Thomas Mcmahon Son — 21 ~1899
James Mcmahon Son — 17 ~1903
John Slattery Other — 40 ~1880
Eleanor Livingston Daughter — 22 ~1898
Mary Mcmahon Spouse — 41 ~1879

Census Appearances

1900
Kings, New …
Son, age 2
Kings, New York · implied b. ~1898 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McMahon
Given Name Thomas
Relationship to Head Son
Sex M
Color / Race White
Age 2
Marital Status Single
Birthplace New York
Birth Month May
Birth Year 1898
Father's Birthplace New York
Mother's Birthplace New York
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1910
Kings, New …
Son, age 11
Kings, New York · implied b. ~1899 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McMahon
Given Name Thomas
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
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1920
Kings, New …
Son, age 21
Kings, New York · implied b. ~1899 — 9 household members
Surname McMahon
Given Name Thomas
Relationship to Head Son
Sex M
Color / Race White
Age 21
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation Helper
Industry Ship building
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 Thomas Mcmahon across 3 US Census years (1900, 1910 and 1920) in Kings, New York, using XGBoost record linkage. Identified parents: father Daniel Mcmahon (~0.92 confidence) and father Daniel Mcmahon (~0.92 confidence) and father Daniel Mcmahon (~0.92 confidence) and mother Mamie Mcmahon (~0.92 confidence) and mother Mary Mcmahon (~0.92 confidence) and mother Mary Mcmahon (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Daniel Mcmahon
b. ~1862
Source father
● Household · direct · ~0.92
Father
Daniel Mcmahon
b. ~1867
Source father
● Household · direct · ~0.92
Father
Daniel Mcmahon
b. ~1865
Source father
● Household · direct · ~0.92
Mother
Mamie Mcmahon
b. ~1876
Source mother
● Household · direct · ~0.92
Mother
Mary Mcmahon
b. ~1879
Source mother
● Household · direct · ~0.92
Mother
Mary Mcmahon
b. ~1877
Source mother
● Household · direct · ~0.92
This person
Anchor record
Thomas Mcmahon
Son · 1920 · age 21 · b. ~1899 · New York
★ You are viewing this record
Sibling
Daniel Mcmahon
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcmahon
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Mcmahon
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Livingston
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcmahon
Sibling · 1920 · age 14
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 — Kings, New York Open full size

Page Contents

50 people indexed on this census page (ia:1920:14thcensusofpopu1179unit:0011)

Line Name Age Relation Occupation Birthplace
51 Cook Marguerite Cook 26 Daughter Stenography New York
52 Mary Scott 74 Head Real Estate New York
53 John H Roden 41 Head Steamfitter New York
54 Anna M D Roden 37 Wife None New York
55 Venie Ham 64 Head Headwear New York
56 James T Moss 31 Head Deckhand Jersey
57 Elizabeth Moss 31 Wife None New York
58 James P Burns 47 Head Boilermaker Pennsylvania
59 Anastasia Burns 44 Wife None Jersey
60 Cornelius Sullivan 66 Boarder None Massachusetts
61 Robert S Trimmer 27 Head Splicer New York
62 Rebecca Trimmer 27 Wife None New York
63 Rodger Trimmer 2 Son None New York
64 Elizabeth Trimmer 0 Daughter None New York
65 Daniel Mcmahon 53 Head Driver New York
66 Mary Mcmahon 41 Wife None New York
67 Eleanor Livingston 22 Daughter Trimmer New York
68 Thomas Mcmahon THIS PERSON 21 Son Helper New York
69 Daniel Mcmahon 19 Son Laborer New York
70 James Mcmahon 17 Son Laborer New York
71 Mary Mcmahon 14 Daughter None New York
72 Patrick Mcmahon 11 Son None New York
73 John Slattery 40 Boarder Handler New York
74 Dennis J Whoolly 38 Head Steamfitter New York
75 Grace Whoolly 34 Wife None New York
76 Grace Whoolly 12 Daughter None New York
77 Gerald Whoolly 11 Son None New York
78 Thomas Whoolly 4 Son None New York
79 Helen Whoolly 0 Daughter None New York
80 Daniel Whoolly 7 Son None New York
81 Harriet Whoolly 2 Daughter None New York
82 Katy Martin 71 Head None Ireland
83 Bridget Mccullough 54 Servant Housekeeper Ireland
84 Mary E Herman 71 Head None New York
85 Betta Lillie B Herman 40 Daughter Saleslady New York
86 Adora B Herman 19 Granddaughter Saleslady Connecticut
87 Sidney S Ketcham 42 Daughter None New York
88 Samuel F Booth 69 Head None England
89 Mary Booth 66 Wife None Ireland
90 James A Garrett 27 Head Printer New York
91 Mary Garrett 23 Wife None Massachusetts
92 Raymond Garrett 1 Son None New York
93 Catherine Hogan 18 Boarder Cutter (Auto) Massachusetts
94 Martin Hogan 52 Head Operator Ireland
95 Bridget Hogan 51 Wife None Ireland
96 Mary Hogan 30 Daughter Assister Massachusetts
97 Elizabeth Hogan 28 Daughter Operator Massachusetts
98 Joseph Hogan 21 Son Machinist Massachusetts
99 Lafayette Michael 10 Grandson None New York
100 William Michael 7 Grandson None New York

Search for Thomas Mcmahon

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Pedigree Summary

Thomas + 5 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 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)

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