JH
James Hagan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this James Hagan across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 6-person household.
Age 16
b. ~1924
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Hagan |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Kearny |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Harrison |
| Est. Birth Year | ~1924 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Edwin Hagan | Son | — | 13 | ~1927 |
| James Hagan | Head | — | 49 | ~1891 |
| James Hagan | Son | — | 16 | ~1924 |
| Mary Hagan | Daughter | — | 17 | ~1923 |
| Mary Hagan | Spouse | — | 46 | ~1894 |
| Shirley Hagan | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Essex, New …
Son, age 6
Essex, New Jersey · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hagan |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 16
Hudson-County, New Jersey · implied b. ~1924 — 6 household members
| Surname | Hagan |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Kearny |
| 1935 Residence (County) | Hudson |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | New Jersey |
| 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 James Hagan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Hagan
Son · 1940 · age 16 · b. ~1924 · New Jersey
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Sibling
Edwin Hagan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Hagan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hagan
Sibling · 1940 · age 17
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 — 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-t0627-02348-00146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Blair Grossman | 46 | Wife | Clerk, Grocery | Austria |
| 2 | Pearl Grossman | 21 | Daughter | Stenographer | New Jersey |
| 3 | Paul Grossman | 15 | Son | — | New Jersey |
| 4 | Anthony Dobrowolski | 52 | Head | Laborer | Poland |
| 5 | Stella Dobrowolski | 52 | Wife | — | Poland |
| 6 | William Dobrowolski | 19 | Son | New Worker | New Jersey |
| 7 | Charlotte Dobrowolski | 18 | Daughter | Cashier | New Jersey |
| 8 | Chester Dobrowolski | 16 | Son | — | New Jersey |
| 9 | Stanley Dobrowolski | 13 | Son | — | New Jersey |
| 10 | Theresa Dotto | 62 | Head | — | New Jersey |
| 11 | Stanley M Helen | 35 | Head | — | Poland |
| 12 | Stella M Helen | 31 | Wife | — | Pennsylvania |
| 13 | Agnes Helen | 13 | Daughter | — | Pennsylvania |
| 14 | Dorothy G. Helen | 10 | Daughter | — | Pennsylvania |
| 15 | Helen M. Helen | 7 | Daughter | — | Pennsylvania |
| 16 | John A. Helen | 6 | Son | — | New Jersey |
| 17 | Anne R. Helen | 5 | Daughter | — | New Jersey |
| 18 | Robert Helen | 2 | Son | — | New Jersey |
| 19 | William Sutcliffe | 43 | Head | Laborer | Massachusetts |
| 20 | Mildred Sutcliffe | 31 | Wife | — | Rhode Island |
| 21 | Lucille Sutcliffe | 8 | Daughter | — | New Jersey |
| 22 | Daniel Sutcliffe | 4 | Son | — | New Jersey |
| 23 | Melvin Sutcliffe | 1 | Son | — | New Jersey |
| 24 | Frank Krohe | 10 | Step-son | — | New Jersey |
| 25 | Rena Hogan | 67 | Head | — | Russia |
| 26 | Morris M Hogan | 33 | Son | Clerk | New Jersey |
| 27 | Chris A Hogan | 31 | Son | — | New Jersey |
| 28 | Harriet N Hogan | 26 | Daughter | — | New Jersey |
| 29 | Harold M. Hogan | 22 | Son | New Worker | New Jersey |
| 30 | Arleen Hogan | 15 | Daughter | — | New Jersey |
| 31 | Thomas Mazepa | 55 | Head | — | Russia |
| 32 | Ada Mazepa | 50 | Wife | — | Russia |
| 33 | Jack Mazepa | 27 | Son | Collector | Russia |
| 34 | Sidney Mazepa | 26 | Son | Clerk, Stock | Russia |
| 35 | James Hagan | 49 | Head | Crew Operator | New Jersey |
| 36 | Mary Hagan | 46 | Wife | — | New Jersey |
| 37 | Mary J. Hagan | 17 | Daughter | Stenographer | New Jersey |
| 38 | James Jr. Hagan THIS PERSON | 16 | Son | — | New Jersey |
| 39 | Edwin Hagan | 13 | Son | — | New Jersey |
| 40 | Shirley Hagan | 12 | Daughter | — | New Jersey |
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)