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Margaret Mcmahon — 1920 US Census Record

Linked across censuses

1920 United States Federal Census · New York, New York

Our Model Tree links this Margaret Mcmahon across the 1910 and 1920 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 12-person household.

Age 10 b. ~1910 Female Daughter Born: New York Single

1920 Census Record Details

Census Year1920
LocationNew York, New York
SurnameMcMahon
Given NameMargaret
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age10
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 / WardNew York City
Est. Birth Year~1910

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.

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

Name Relation to head Relative to Margaret Age Birth yr
Herman Mcmahon Son — 7 ~1913
Rita Mcmahon Daughter — 8 ~1912
Bernadette Mcmahon Daughter — 10 ~1910
Mary Mcmahon Other — 79 ~1841
Thomas Mcmahon Son — 12 ~1908
John Mcmahon Son — 15 ~1905
Catherine Mcmahon Spouse — 38 ~1882
Monica Mcmahon Daughter — 5 ~1915
Gerard Mcmahon Son — 8 ~1912
Margaret Mcmahon Daughter — 10 ~1910
Kathleen Mcmahon Daughter — 13 ~1907
Thomas Mcmahon Head — 43 ~1877

Census Appearances

1910
New York, …
Daughter, age
New York, New York · implied b. ~1910 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McMahon
Given Name Margaret
Relationship to Head Daughter
Sex F
Color / Race White
Age 0
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
New York, …
Daughter, age 10
New York, New York · implied b. ~1910 — 12 household members
Surname McMahon
Given Name Margaret
Relationship to Head Daughter
Sex F
Color / Race White
Age 10
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.
Linked across censuses
Our Model Tree links Margaret Mcmahon across 2 US Census years (1910 and 1920) in New York, New York, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Mcmahon
Daughter · 1920 · age 10 · b. ~1910 · New York
★ You are viewing this record
Sibling
Monica Mcmahon
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadette Mcmahon
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herman Mcmahon
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mcmahon
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcmahon
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerard Mcmahon
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Mcmahon
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Mcmahon
Sibling · 1920 · age 8
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:1920:14thcensusofpopu1189unit:0159)

Line Name Age Relation Occupation Birthplace
51 Thomas Mcmahon 43 Head Produce Merchant New York
52 Catherine Mcmahon 38 Wife — New York
53 John Mcmahon 15 Son — New York
54 Kathleen Mcmahon 13 Daughter — New York
55 Margaret Mcmahon THIS PERSON 10 Daughter — New York
56 Thomas Mcmahon 12 Son — New York
57 Bernadette Mcmahon 10 Daughter — New York
58 Rita Mcmahon 8 Daughter — New York
59 Gerard Mcmahon 8 Son — New York
60 Herman Mcmahon 7 Son — New York
61 Monica Mcmahon 5 Daughter — New York
62 Mary Mcmahon 79 Aunt — Ireland
63 William O'Brien 54 Head Clerk New York
64 Walter O'Brien 31 Son Laborer New York
65 Catherine O'Brien 26 Daughter Clerk New York
66 Edward O'Brien 24 Son Roadman New York
67 John O'Brien 20 Son Clerk New York
68 Josephine O'Brien 18 Daughter — New York
69 Margaret Watson 35 Head Waitress Canada
70 Thomas Appleton 44 Head Engineer New York
71 Mary Appleton 40 Wife Laborer New York
72 William O'Neill 53 Head — U. S.
73 Margaret O'Neill 50 Wife — New York
74 William O'Neill 20 Son Driver New York
75 Catherine Shannon 27 Daughter — New York
76 Thomas Shannon 4 Grandson — New York
77 Jane Spencer 22 Daughter — New York
78 John Sheehan 38 Head Postman New York
79 Loretta Sheehan 33 Wife — New York
80 Kathleen Sheehan 15 Daughter — New York
81 Francis Sheehan 13 Son — New York
82 Margaret Sheehan 8 Daughter — New York
83 Harold Sheehan 5 Son — New York
84 Daniel Brown 53 Head Laborer Ireland
85 Nora Brown 55 Wife — Ireland
86 John Brown 22 Son Driver New York
87 Patrick Brown 21 Son Driver New York
88 Margaret Brown 16 Daughter Typist New York
89 Julia Brown 14 Daughter — New York
90 Louise Akers 55 Head Cook Virginia
91 Florence Akers 23 Daughter Waitress New York
92 Helena Doyle 66 Head — Ireland
93 James Doyle 34 Son Shipping Clerk New York
94 Mary Doyle 32 Daughter Saleslady New York
95 John Doyle 30 Son School Teacher New York
96 Henry Brooks 41 Head Patrolman New York
97 Rose Brooks 40 Wife — New York
98 Rosella Brooks 16 Daughter Operator New York
99 Henry Brooks 13 Son — New York
100 Vivian Brooks 5 Daughter — New York

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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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