JC
John Cronin — 1940 US Census Record
Linked across censuses1940 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 head (b.~1896), then head of a 8-person household.
Age 44
b. ~1896
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | Steamfitter |
| Industry | Plumber |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Steamfitter |
| Township / Ward | New 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Joan Cronin | Daughter | — | 3 | ~1937 |
| John Cronin | Head | — | 44 | ~1896 |
| Dorothy Cronin | Daughter | — | 17 | ~1923 |
| John Cronin | Son | — | 11 | ~1929 |
| Catherine Cronin | Spouse | — | 41 | ~1899 |
| Ethel Cronin | Daughter | — | 15 | ~1925 |
| Lillian Cronin | Daughter | — | 12 | ~1928 |
| Claire Cronin | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Bronx, New …
Head, age 35
Bronx, New York · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 24 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Canada-English |
| Occupation | Steam Fitter |
| Industry | Construction |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 22 |
| Radio Set | R |
| Veteran | Yes WW |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Head, age 44
Bronx-County, New York · implied b. ~1896 — 8 household members
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Occupation | Steamfitter |
| Industry | Plumber |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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.
Our Model Tree links John Cronin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Cronin
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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02469-00293)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Cronin THIS PERSON | 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 | 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 |
Related Census Records
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)