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John Cronin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Cronin across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| Joseph Cronin | Son | — | 17 | ~1923 |
| William Cronin | Other | — | 72 | ~1868 |
| John Cronin | Son | — | 13 | ~1927 |
| William O'Brien | Other | — | 33 | ~1907 |
| Frances Cronin | Daughter | — | 21 | ~1919 |
| Paul Cronin | Son | — | 23 | ~1917 |
| Edward Cronin | Son | — | 6 | ~1934 |
| William Cronin | Son | — | 15 | ~1925 |
| Margaret Cronin | Daughter | — | 11 | ~1929 |
| Vincent Cronin | Son | — | 19 | ~1921 |
| Mary Cronin | Spouse | — | 61 | ~1879 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 3
Philadelphia, Pennsylvania · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Age at First Marriage | 3 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 13
Philadelphia-County, Pennsylvania · implied b. ~1927 — 11 household members
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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.
Show:
This person
Anchor record
John Cronin
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
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Sibling
Paul Cronin
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Cronin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Cronin
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Cronin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Cronin
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Cronin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Cronin
Sibling · 1940 · age 19
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03742-00565)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Cronin | 61 | Wife | Housewife | Pennsylvania |
| 2 | Paul Cronin | 23 | Son | Clerk | Pennsylvania |
| 3 | Frances Cronin | 21 | Daughter | Housework | Pennsylvania |
| 4 | Vincent Cronin | 19 | Son | Student | Pennsylvania |
| 5 | Joseph Cronin | 17 | Son | Student | Pennsylvania |
| 6 | William Cronin | 15 | Son | — | Pennsylvania |
| 7 | John Cronin THIS PERSON | 13 | Son | — | Pennsylvania |
| 8 | Margaret Cronin | 11 | Daughter | — | Pennsylvania |
| 9 | Edward Cronin | 6 | Son | — | Pennsylvania |
| 10 | William O'Brien | 33 | Brother-in-law | — | Pennsylvania |
| 11 | William Cronin | 72 | Brother | — | Pennsylvania |
| 12 | Cancelled | None | — | — | — |
| 13 | Thomas Clark | 53 | Head | Fireman On Railroad | Pennsylvania |
| 14 | Catherine Clark | 50 | Wife | Housewife | Pennsylvania |
| 15 | Marie Clark | 21 | Daughter | Mender | Pennsylvania |
| 16 | Evelyn Clark | 18 | Daughter | Housework | Pennsylvania |
| 17 | Francis Clark | 13 | Son | — | Pennsylvania |
| 18 | Alfred Deskiewicz | 24 | Head | Brakeman | Pennsylvania |
| 19 | Clara Deskiewicz | 19 | Wife | Housewife | Pennsylvania |
| 20 | Catherine Deskiewicz | 2 | Daughter | — | Pennsylvania |
| 21 | Henry Deskiewicz | 0 | Son | — | Pennsylvania |
| 22 | John Heneau | 56 | Lodger | Laborer | Pennsylvania |
| 23 | Myrtle York | 44 | Head | Housewife | Pennsylvania |
| 24 | Paul York | 21 | Son | Welder | Pennsylvania |
| 25 | Irene Maury | 74 | Mother | — | Pennsylvania |
| 26 | Frances | 35 | Sister | Manicurist | Pennsylvania |
| 27 | Hazel | 33 | Sister | Machinist | Pennsylvania |
| 28 | Letizia Clemente | 42 | Head | Housewife | Italy |
| 29 | Romeo Clemente | 23 | Son | Clerk | Pennsylvania |
| 30 | Larry Clemente | 21 | Son | Clerk | Pennsylvania |
| 31 | Joseph Hutchenson | 54 | Head | Roofer | Pennsylvania |
| 32 | Edward Conlen | 28 | Head | Moving Man | Pennsylvania |
| 33 | Harry Pustelnik | 49 | Head | Butcher | Poland |
| 34 | Margaret Hamilton | 49 | Head | Housewife | Pennsylvania |
| 35 | James Hamilton | 27 | Son | Truck Driver | Pennsylvania |
| 36 | John Elkin | 45 | Head | Tailor Shop | Russia |
| 37 | Paulene Elkin | 41 | Wife | Helper | Rumania |
| 38 | Felix Elkin | 23 | Son | Clerk | Pennsylvania |
| 39 | Marian Davidson | 43 | Head | Housewife | Pennsylvania |
| 40 | Joseph Davidson | 17 | Son | Boy | Pennsylvania |
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)