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John Costello — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Worcester, Massachusetts
Our Model Tree links this John Costello across the 1920 and 1930 US Censuses in Worcester, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 9-person household.
Age 16
b. ~1914
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Worcester, Massachusetts |
| Surname | Costello |
| Given Name | John G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Worcester City Of |
| Est. Birth Year | ~1914 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Costello | Spouse | — | 37 | ~1893 |
| Robert Costello | Son | — | 10 | ~1920 |
| Catherine Costello | Daughter | — | 9 | ~1921 |
| James Daley | Other | — | 21 | ~1909 |
| John Costello | Son | — | 16 | ~1914 |
| Thomas Costello | Son | — | 14 | ~1916 |
| Thomas Costello | Head | — | 38 | ~1892 |
| Walter Costello | Son | — | 17 | ~1913 |
| Margaret Costello | Daughter | — | 12 | ~1918 |
Census Appearances
1920
Worcester, Massachusetts
Son, age 5
Worcester, Massachusetts · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costello |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Son, age 16
Worcester, Massachusetts · implied b. ~1914 — 9 household members
| Surname | Costello |
| Given Name | John G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 (1920 and 1930) in Worcester, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
John Costello
Son · 1930 · age 16 · b. ~1914 · Massachusetts
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Sibling
Margaret Costello
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Costello
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Costello
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Costello
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Costello
Sibling · 1930 · age 10
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 — Worcester, Massachusetts
Open full size
1930 US Federal Census — Worcester, Massachusetts
Page Contents
44 people indexed on this census page (ia:1930:massachusettscensus00reel968:0334)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William C. Taylor | 33 | Head | Laborer | Massachusetts |
| 52 | Mary R. Taylor | 29 | Wife | None | Ireland |
| 53 | Virginia Taylor | 2 | Daughter | None | Massachusetts |
| 54 | George P. Brent | 52 | Head | Teamster | New York |
| 55 | Mary C. Brent | 42 | Wife | None | New York |
| 56 | John H. Brent | 3 | Adopted Son | None | Massachusetts |
| 57 | Mike B. Plume | 36 | Head | Carpenter | Canada English |
| 58 | Ellen Plume | 36 | Wife | None | Massachusetts |
| 59 | Eleanor Plume | 5 | Daughter | None | Massachusetts |
| 60 | Milo Plume | 4 | Son | None | Massachusetts |
| 61 | Norma Plume | 3 | Daughter | None | Massachusetts |
| 62 | Alfred Plume | 1 | Son | None | Massachusetts |
| 63 | Thomas F. Costello | 38 | Head | Machinist | Massachusetts |
| 64 | Catherine T. Costello | 37 | Wife | None | Massachusetts |
| 65 | Walter F. Costello | 17 | Son | Clerk | Massachusetts |
| 66 | John G. Costello THIS PERSON | 16 | Son | None | Massachusetts |
| 67 | Thomas J. Costello | 14 | Son | None | Massachusetts |
| 68 | Margaret E. Costello | 12 | Daughter | None | Massachusetts |
| 69 | Robert E. Costello | 10 | Son | None | Massachusetts |
| 70 | Catherine Costello | 9 | Daughter | None | Massachusetts |
| 71 | James F. Daley | 21 | Brother | Unloader | Massachusetts |
| 72 | Harold E. Jordan | 35 | Head | Chauffeur | Massachusetts |
| 73 | Alyce M. Jordan | 33 | Wife | None | Massachusetts |
| 74 | Robert E. Boyce | 10 | Stepson | None | Massachusetts |
| 75 | Clarence Olson | 33 | Head | Roll Turner | Massachusetts |
| 76 | Annie J. Olson | 36 | Wife | None | Massachusetts |
| 77 | Helen G. Anderson | 18 | Stepdaughter | Sewing | Massachusetts |
| 78 | Gladys L. Anderson | 16 | Stepdaughter | Specking | Massachusetts |
| 79 | Evelyn V. Anderson | 13 | Stepdaughter | None | Massachusetts |
| 80 | Albert S. Anderson | 7 | Stepson | None | Massachusetts |
| 81 | Shirley R. Olson | 3 | Daughter | None | Massachusetts |
| 82 | Eleanor B. Olson | 1 | Daughter | None | Massachusetts |
| 83 | Mary Fittipaldi | 31 | Head | None | Massachusetts |
| 84 | Anne D. Fittipaldi | 10 | Daughter | None | Massachusetts |
| 85 | Eileen M. Fittipaldi | 8 | Daughter | None | Massachusetts |
| 86 | Otto Molin | 34 | Brother | Assembling | Italy |
| 87 | William H. Dominis | 68 | Head | Janitor | Maryland |
| 88 | Rebecca D. Dominis | 67 | Wife | None | North Carolina |
| 89 | Millie Dominis | 27 | Daughter | Stenographer | Massachusetts |
| 90 | Muriel Hazard | 11 | Granddaughter | None | Massachusetts |
| 91 | Helen L. Flodin | 54 | Head | Sealer | Sweden |
| 92 | Katherine A. Catarine | 68 | Roomer | None | Massachusetts |
| 93 | — | None | — | — | — |
| 94 | — | 54 | — | Sealer | Sweden |
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)