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James Costello — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this James Costello across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Costello |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Engineer |
| Industry | Board of Education |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 2100 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Engineer |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1876 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Costello | Son | — | 18 | ~1922 |
| James Costello | Head | — | 64 | ~1876 |
| Margaret Costello | Spouse | — | 56 | ~1884 |
| Marjorie Costello | Daughter | — | 24 | ~1916 |
Census Appearances
1920
Hudson, New …
Head, age 40
Hudson, New Jersey · implied b. ~1880 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costello |
| Given Name | James J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1896 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Locomotive Engineer |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1906 |
| Birthplace (normalized) | ireland |
1930
Hudson, New …
Head, age 50
Hudson, New Jersey · implied b. ~1880 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costello |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1895 |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Sta. Engineer |
| Industry | Steam R.R. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Hudson-County, New …
Head, age 64
Hudson-County, New Jersey · implied b. ~1876 — 4 household members
| Surname | Costello |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Naturalization Status | Naturalized |
| Occupation | Engineer |
| Industry | Board of Education |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 2100 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 James Costello across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Costello
Head · 1940 · age 64 · b. ~1876 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02406-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy Mc Ginn | 18 | Daughter | New Worker | New Jersey |
| 2 | Morris Deluise | 50 | Head | Auditor | New York |
| 3 | Lida Deluise | 50 | Wife | — | New Jersey |
| 4 | Grace Deluise | 24 | Daughter | Switchboard Operator | New Jersey |
| 5 | Daughter Raymond | None | F | — | — |
| 6 | Richard Deluise | 15 | Son | — | Connecticut |
| 7 | Laura J Ennis | 72 | Head | Retired Teacher | New York |
| 8 | Lydia Ennis | 75 | Sister | Retired Teacher | New York |
| 9 | Frank Ennis | 75 | Brother | Retired Teacher | New York |
| 10 | John Spahn | 50 | Head | Commercial Of Magazines | New Jersey |
| 11 | Gladys Spahn | 39 | Wife | — | New Jersey |
| 12 | John Spahn | 19 | Son | — | New Jersey |
| 13 | Donald Spahn | 10 | Son | — | New Jersey |
| 14 | William Frantz | 70 | Lodger | Electrician | Pennsylvania |
| 15 | James Costello THIS PERSON | 64 | Head | Engineer | Ireland |
| 16 | Margaret Costello | 56 | Wife | — | New Jersey |
| 17 | Marjorie Costello | 24 | Daughter | Nurse | New Jersey |
| 18 | James Costello | 18 | Son | New Worker | New Jersey |
| 19 | Mae Healy | 44 | Head | — | New Jersey |
| 20 | Roy Healy | 26 | Son | Receptionist Clerk | New Jersey |
| 21 | Eugene Healy | 24 | Son | Utility Clerk | New Jersey |
| 22 | Florence Healy | 23 | Daughter | General Office | New Jersey |
| 23 | Dorothy Healy | 22 | Daughter | Packing Dept | New Jersey |
| 24 | Nancy Healy | 16 | Daughter | — | New Jersey |
| 25 | Marian Healy | 14 | Daughter | — | New Jersey |
| 26 | Frank Healy | 13 | Son | — | New Jersey |
| 27 | Frank R Mc Donald | 52 | Head | Medical Dr | Wisconsin |
| 28 | Blanche Mc Donald | 47 | Wife | — | Missouri |
| 29 | Anna Mc Donald | 17 | Daughter | Private Secretary | China |
| 30 | Roland Mc Donald | 16 | Son | — | China |
| 31 | Paul Mc Donald | 11 | Son | — | New Jersey |
| 32 | King Richard Mc Donald | 84 | Lodger | — | New Jersey |
| 33 | Emil Brehm | 56 | Head | Letter Carrier | New Jersey |
| 34 | Caroline Brehm | 55 | Wife | Letter Carrier | New Jersey |
| 35 | Harold Brehm | 26 | Son | Electrical Eng. | New Jersey |
| 36 | Joseph Kenny | 51 | Head | Utility Man | New Jersey |
| 37 | Leona Kenny | 52 | Wife | — | New Jersey |
| 38 | Jeanette Kenny | 31 | Daughter | Operator | New Jersey |
| 39 | Marie Kenny | 16 | Daughter | — | New Jersey |
| 40 | Sydney Ellis | 30 | Step-son | Waiter | New Jersey |
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)