JC
John Costello — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cape May, New Jersey
Our Model Tree links this John Costello across the 1930 and 1940 US Censuses in Cape May, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 10-person household.
Age 4
b. ~1926
Male
Son
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cape May, New Jersey |
| Surname | Costello |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Additional Details | |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Ocean City |
| Est. Birth Year | ~1926 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Leon Costello | Son | — | 14 | ~1916 |
| Mary Costello | Daughter | — | 6 | ~1924 |
| Frank Costello | Daughter | — | 9 | ~1921 |
| Corinne Costello | Daughter | — | 1 | ~1929 |
| John Costello | Son | — | 4 | ~1926 |
| Cecilia Costello | Daughter | — | 15 | ~1915 |
| Josephine Costello | Other | — | 35 | ~1895 |
| Frank Costello | Son | — | 12 | ~1918 |
| Joseph Costello | Son | — | 7 | ~1923 |
| Leon Costello | Head | — | 41 | ~1889 |
Census Appearances
1930
Cape May, …
Son, age 4
Cape May, New Jersey · implied b. ~1926 — 10 household members
| Surname | Costello |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Cape-May-County, New …
Son, age 14
Cape-May-County, New Jersey · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Castalo |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Ocean City |
| 1935 Residence (County) | Cape May |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Costello across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Costello
Son · 1930 · age 4 · b. ~1926 · New Jersey
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Sibling
Corinne Costello
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecilia Costello
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Costello
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Costello
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Costello
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Costello
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leon Costello
Sibling · 1930 · age 14
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
1930 US Federal Census — Cape May, New Jersey
Open full size
1930 US Federal Census — Cape May, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1325:0755)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jennie Allese | 2 | daughter | — | New Jersey |
| 52 | Nicholas Allese | 1 | son | — | New Jersey |
| 53 | Bridget Allese | 0 | daughter | — | New Jersey |
| 54 | Adam Schenit | 56 | head | Laborer | Germany |
| 55 | Adam Jr. Schenit | 21 | son | Fireman | New Jersey |
| 56 | Ella Foster | 45 | housekeeper | Housekeeper | Delaware |
| 57 | Alex Orfanalle | 30 | head | Chauffeur | Italy |
| 58 | Nellie Orfanalle | 19 | wife-H | — | Italy |
| 59 | Vernon R. Carlson | 44 | head | Chauffeur | New Jersey |
| 60 | Anna M. Carlson | 44 | wife-H | — | New Jersey |
| 61 | Mildred Carlson | 19 | daughter | — | New Jersey |
| 62 | Vernon R. Jr. Carlson | 16 | son | — | New Jersey |
| 63 | Abigail Carlson | 12 | daughter | — | New Jersey |
| 64 | Jean M. Davis | 1 | granddaughter | — | New Jersey |
| 65 | Budd Shiding | 41 | boarder | Retail Merchant | New Jersey |
| 66 | Harvey W. Pannelly | 55 | head | Painting Contractor | Pennsylvania |
| 67 | Ethel L. Pannelly | 50 | wife-H | — | Pennsylvania |
| 68 | Emerson Pannelly | 26 | son | Painter | Pennsylvania |
| 69 | Leon Costello | 41 | head | Cement Contractor | Italy |
| 70 | Josephine Costello | 35 | wife-H | — | Italy |
| 71 | Cecilia Costello | 15 | daughter | — | New Jersey |
| 72 | Leon Jr. Costello | 14 | son | — | New Jersey |
| 73 | Frank Costello | 12 | son | — | New Jersey |
| 74 | Frank L. Costello | 9 | daughter | — | New Jersey |
| 75 | Joseph Costello | 7 | son | — | New Jersey |
| 76 | Mary Costello | 6 | daughter | — | New Jersey |
| 77 | John Costello THIS PERSON | 4 | son | — | New Jersey |
| 78 | Corinne Costello | 1 | daughter | — | New Jersey |
| 79 | Edward Lees | 48 | head | Laborer | Pennsylvania |
| 80 | Mamie Lees | 48 | wife-H | — | Pennsylvania |
| 81 | George Mcdermott | 22 | nephew | Painter | Pennsylvania |
| 82 | Margaret Mcdermott | 19 | niece | — | Pennsylvania |
| 83 | Charles Coffee | 18 | nephew | — | Pennsylvania |
| 84 | Mary Barrett | 14 | niece | — | Pennsylvania |
| 85 | Thomas Barrett | 7 | nephew | — | Pennsylvania |
| 86 | William Perry | 38 | head | Laborer | New Jersey |
| 87 | Ida B. Perry | 28 | wife-H | Folder | New Jersey |
| 88 | Sadie Green | 16 | stepdaughter | — | New Jersey |
| 89 | Rachel Green | 7 | daughter | — | New Jersey |
| 90 | Blanche Perry | 1 | daughter | — | New Jersey |
| 91 | Alvin H. Jones | 24 | head | Laborer | New Jersey |
| 92 | Hannah Jones | 21 | wife-H | — | New Jersey |
| 93 | Harry A. Jones | 3 | son | — | New Jersey |
| 94 | Charles Jones | 1 | son | — | New Jersey |
| 95 | John Ward | 66 | head | — | England |
| 96 | Mary A. Ward | 65 | wife-H | — | England |
| 97 | Mae Ward | 23 | daughter | Bookkeeper | Pennsylvania |
| 98 | Katherine C. Ward | 22 | daughter | — | Pennsylvania |
| 99 | L. Mary Corson | 52 | head | — | New Jersey |
| 100 | Charles S. Hoffert | 38 | boarder | Commercial Traveler | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)