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John Cronin — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Cronin across the 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.

Age 11 b. ~1929 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationBronx-County, New York
SurnameCronin
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age11
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)Bronx
Additional Details
Highest GradeNo 7
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardNew York City
Est. Birth Year~1929

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.

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

Name Relation to head Relative to John Age Birth yr
John Cronin Head — 44 ~1896
Dorothy Cronin Daughter — 17 ~1923
Ethel Cronin Daughter — 15 ~1925
Catherine Cronin Spouse — 41 ~1899
John Cronin Son — 11 ~1929
Joan Cronin Daughter — 3 ~1937
Lillian Cronin Daughter — 12 ~1928
Claire Cronin Daughter — 6 ~1934

Census Appearances

1930
Bronx, New …
Son, age 1
Bronx, New York · implied b. ~1929 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Cronin
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 1
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation none
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Bronx-County, New …
Son, age 11
Bronx-County, New York · implied b. ~1929 — 8 household members
Surname Cronin
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace New York
1935 Residence (City) New York City
1935 Residence (County) Bronx
Highest Grade No 7
1935 Residence Same place
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 John Cronin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Cronin
Son · 1940 · age 11 · b. ~1929 · New York
★ You are viewing this record
Sibling
Dorothy Cronin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Cronin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Cronin
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Cronin
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Cronin
Sibling · 1940 · age 6
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

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

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02469-00293)

Line Name Age Relation Occupation Birthplace
41 John Cronin 44 Head Steamfitter New York
42 Catherine Cronin 41 Wife — New York
43 Dorothy Cronin 17 Daughter — New York
44 Ethel Cronin 15 Daughter — New York
45 Lillian Cronin 12 Daughter — New York
46 John Cronin THIS PERSON 11 Son — New York
47 Claire Cronin 6 Daughter — New York
48 Joan Cronin 3 Daughter — New York
49 Mada O'Hara 74 Head — New York
50 Elsie O'Hara 36 Daughter — New York
51 Margaret O'Hara 42 Daughter — New York
52 Catherine Mcmahon 62 Head — Ireland
53 Joseph F. Mcmahon 22 Son Elevator Operator New York
54 Catherine Kilgar 28 Daughter — New York
55 Edward Smith 50 Head — New York
56 Lillian Smith 42 Wife Waitress New York
57 Arleen Smith 18 Daughter — New York
58 Anthony Ambrosio 33 Head Operator New York
59 Camilla Ambrosio 28 Wife — New York
60 Anthony Jr. Ambrosio 9 Son — New York
61 Robert Ambrosio 7 Son — New York
62 Anne Ambrosio 5 Daughter — New York
63 Ralph Saccavino 44 Head Bricklayer Italy
64 Florence Saccavino 35 Wife — Italy
65 Alexander Saccavino 6 Son — New York
66 Ralph Jr. Saccavino 5 Son — New York
67 John Saccavino 2 Daughter — New York
68 Joseph Saccavino 74 Father — Italy
69 Brother Americus 35 Brother Waiter New York
70 Ann B. Lynch 52 Head — New York
71 Alevia K. Lynch 50 Sister — New York
72 Nannie Jennings 32 Head — N. Carolina
73 Le Roy Jennings 11 Son — N. Carolina
74 Mc Coy Jennings 10 Son — N. Carolina
75 Thomas Jennings 9 Son — N. Carolina
76 Minnie Kingston 48 Head — Virginia
77 Mary Couch 63 Daughter — Virginia
78 Frank Mabroi 60 Head Janitor S. Carolina
79 Gentry Robinson 38 Son in law Chauffer Kansas
80 Rena Robinson 38 Daughter Waitress S. Carolina

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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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