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John Cronin — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this John Cronin across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 9-person household.

Age 10 b. ~1930 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationNew-York-County, New York
SurnameCronin
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age10
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)New York
Additional Details
Highest GradeS-5
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardNew York City
Est. Birth Year~1930

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 1940 census.

Name Relation to head Relative to John Age Birth yr
David Cronin Head — 32 ~1908
Robert Cronin Son — 9 ~1931
David Cronin Son — 6 ~1934
John Cronin Son — 10 ~1930
Patricia Cronin Daughter — ~1940
Edward Cronin Son — 3 ~1937
Dorothy Cronin Daughter — 13 ~1927
James Cronin Son — 2 ~1938
Elizabeth Cronin Spouse — 33 ~1907

Census Appearances

1930
New York, …
Son, age
New York, New York · implied b. ~1930 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Cronan
Given Name John
Relationship to Head Son
Sex M
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
1940
New-York-County, New …
Son, age 10
New-York-County, New York · implied b. ~1930 — 9 household members
Surname Cronin
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 10
Marital Status Single
Birthplace New York
1935 Residence (City) New York City
1935 Residence (County) New York
Highest Grade S-5
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 10 · b. ~1930 · New York
★ You are viewing this record
Sibling
Dorothy Cronin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Cronin
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Cronin
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Cronin
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Cronin
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David 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 — New-York-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02671-00608)

Line Name Age Relation Occupation Birthplace
1 George Green 62 Head Elevator Operator New York
2 Zali Green 46 Wife — Hungary
3 Cziska Green 21 Daughter Civil Engineer New York
4 David Green 17 Son — New York
5 Joseph Green 11 Son — New York
6 Loretta Rice 47 Head — New York
7 William Rice 17 Son — New York
8 Charles Rice 16 Son — New York
9 Fred Rogers 47 Head Chauffeur New York
10 Mary Rogers 47 Wife — New York
11 Julia Rogers 21 Daughter Stenographer New York
12 Julia Hock 78 Lodger — New York
13 Helen Donnelly 49 Head — England
14 Malcolm Donnelly 18 Son — New York
15 Margaret Donnelly 16 Daughter — New York
16 Julius Soth 35 Head Operator Panama
17 John Rooney 39 Head Elevator Operator New York
18 Catherine Rooney 31 Wife — New York
19 Sally Rooney 13 Daughter — New York
20 Catherine Rooney 11 Daughter — New York
21 Thomas Fitzgerald 53 Head Plumber'S Helper New York
22 Anna Fitzgerald 43 Wife — New York
23 Marie Fitzgerald 24 Daughter New Worker New York
24 Irene Fitzgerald 22 Daughter New Worker New York
25 Margaret Fitzgerald 18 Daughter Waitress New York
26 David Cronin 32 Head Special Patrolman New York
27 Elizabeth Cronin 33 Wife — New York
28 Dorothy Cronin 13 Daughter — New York
29 John Cronin THIS PERSON 10 Son — New York
30 Robert Cronin 9 Son — New York
31 David Jr. Cronin 6 Son — New York
32 Edward Cronin 3 Son — New York
33 James Cronin 2 Son — New York
34 Patricia Cronin 0 Daughter — New York
35 Michael Norton 68 Head Mailing Clerk New York
36 Mary Norton 67 Wife — New York
37 George Thomas 52 Head Sewer Laborer New York
38 Mary Thomas 43 Wife — New York
39 Loretta Thomas 16 Daughter — New York
40 George Thomas 13 Son — New York

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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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