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John Mahoney — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · New-York-County, New York

Our Model Tree links this John Mahoney across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 11-person household.

Age 44 b. ~1896 Male Head Born: Irish Free State Married

1940 Census Record Details

Census Year1940
LocationNew-York-County, New York
SurnameMahoney
Given NameJohn
Relationship to HeadHead
SexM
Color / RaceWhite
Age44
Marital StatusMarried
BirthplaceIrish Free State
1935 Residence (City)New York City
1935 Residence (County)New York
Naturalization StatusNaturalized
Additional Details
OccupationChauffeur
IndustryBus
Class of WorkerPW
Hours Worked48
Income (1939)1326
Highest Grade8
1935 ResidenceSame place
Birthplace (normalized)irish free state
OccupationChauffeur
Township / WardNew York City
Est. Birth Year~1896

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.

11 people recorded at the same address in the 1940 census.

Name Relation to head Relative to John Age Birth yr
Eileen Mahoney Daughter — 9 ~1931
Marie Mahoney Daughter — 12 ~1928
Helen Mahoney Daughter — 7 ~1933
Kathleen Mahoney Daughter — 15 ~1925
Margaret Mahoney Daughter — 17 ~1923
Theresa Mahoney Daughter — 10 ~1930
John Mahoney Head — 44 ~1896
J Mahoney Son — 20 ~1920
James Mahoney Son — 4 ~1936
J Mahoney Son — 16 ~1924
Margurite Mahoney Spouse — 44 ~1896

Census Appearances

1930
New York, …
Other, age 33
New York, New York · implied b. ~1897 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mahony
Given Name John
Relationship to Head Lodger
Sex M
Color / Race White
Age 33
Marital Status Single
Birthplace Irish Free State
Naturalization Status Alien
Year of Immigration 1930
Father's Birthplace Irish Free State
Mother's Birthplace Irish Free State
Occupation Porter
Industry Store
Class of Worker W
Can Read/Write Yes
Mother Tongue English
Veteran No
Birthplace (normalized) irish free state
1940
New-York-County, New …
Head, age 44
New-York-County, New York · implied b. ~1896 — 11 household members
Surname Mahoney
Given Name John
Relationship to Head Head
Sex M
Color / Race White
Age 44
Marital Status Married
Birthplace Irish Free State
1935 Residence (City) New York City
1935 Residence (County) New York
Naturalization Status Naturalized
Occupation Chauffeur
Industry Bus
Class of Worker PW
Hours Worked 48
Income (1939) 1326
Highest Grade 8
1935 Residence Same place
Birthplace (normalized) irish free state

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 John Mahoney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mahoney
Head · 1940 · age 44 · b. ~1896 · New York
★ You are viewing this record
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — New-York-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02663-00111)

Line Name Age Relation Occupation Birthplace
1 John Mahoney THIS PERSON 44 Head Chauffeur Irish Free State
2 Margurite Mahoney 44 Wife — Northern Ireland
3 J. Cornelius Mahoney 20 Son New Worker New York
4 Margaret Mahoney 17 Daughter — New York
5 J. John Mahoney 16 Son — New York
6 Kathleen Mahoney 15 Daughter — New York
7 Marie Mahoney 12 Daughter — New York
8 Theresa Mahoney 10 Daughter — New York
9 Eileen Mahoney 9 Daughter — New York
10 Helen Mahoney 7 Daughter — New York
11 James Mahoney 4 Son — New York
12 Albert Dobers 44 Head Engraver New York
13 Mary Dobers 39 Wife — New York
14 Margaret Dobers 14 Daughter — New York
15 Arlene Dobers 12 Daughter — New York
16 Charles Dobers 10 Son — New York
17 Robert Dobers 5 Son — New York
18 Jane Dobers 3 Daughter — New York
19 Vincent Arra 34 Head Proprietor New York
20 Ann Arra 32 Wife — New York
21 Francis Arra 12 Son — New York
22 Margaret Arra 8 Daughter — New York
23 Edward Mcdonald 51 Head Lock Tender New York
24 Margaret Mcdonald 44 Wife — New York
25 Edward Mcdonald 20 Son Clerk New York
26 Margaret Mcdonald 18 Daughter File Clerk New York
27 Patricia Mcdonald 7 Daughter — New York
28 Albert Weber 55 Head Waiter Germany
29 Helen Weber 48 Wife Cleaner New York
30 Elizabeth Weber 25 Daughter Credit Authorizer New York
31 Helen Weber 20 Daughter Chambermaid New York
32 Donald Weber 17 Son — New York
33 Eleanor Weber 13 Daughter — New York
34 William Weber 11 Son — New York
35 Joseph Weber 9 Son — New York
36 June Weber 7 Daughter — New York
37 Dorothy Molloy 4 Grand Daughter — New York
38 Joseph Molloy 2 Grand Son — New York
39 Francesco Scarangella 61 Head Owner Italy
40 Jenny Scarangella 50 Wife — Italy

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 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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