JD
James Dugan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this James Dugan across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 10-person household.
Age 16
b. ~1924
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | DUGAN |
| Given Name | JAMES |
| Relationship to Head | SON |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Elizabeth City |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| William Dugan | Son | — | 20 | ~1920 |
| Mary Dugan | Spouse | — | 52 | ~1888 |
| Thomas Dugan | Head | — | 54 | ~1886 |
| James Dugan | Son | — | 16 | ~1924 |
| Ellen Dugan | Daughter | — | 22 | ~1918 |
| John Dugan | Son | — | 9 | ~1931 |
| Margaret Dugan | Daughter | — | 21 | ~1919 |
| Edward Dugan | Son | — | 7 | ~1933 |
| Thomas Dugan | Son | — | 24 | ~1916 |
| Mary Dugan | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Hudson, New …
Son, age 6
Hudson, New Jersey · implied b. ~1924 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | New Jersey |
| Can Read/Write | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 16
Union-County, New Jersey · implied b. ~1924 — 10 household members
| Surname | DUGAN |
| Given Name | JAMES |
| Relationship to Head | SON |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Highest Grade | Hs 1 |
| 1935 Residence | Same Place |
| 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 Dugan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dugan
Son · 1940 · age 16 · b. ~1924 · New Jersey
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Sibling
Margaret Dugan
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Dugan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Dugan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dugan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Dugan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Dugan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dugan
Sibling · 1940 · age 24
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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02400-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas J. Harrison | 55 | HEAD | Messenger | New York |
| 2 | Mariah E. Harrison | 51 | WIFE | — | New York |
| 3 | Alfred Hogg | 52 | HEAD | Iron Worker | New York |
| 4 | Wife Hogg | 50 | WIFE | — | New York |
| 5 | Sofia Winkler | 77 | MOTHER-IN-LAW | — | GERMANY |
| 6 | Frank Bush | 46 | HEAD | Clerk | Pennsylvania |
| 7 | Fanny Bush | 45 | WIFE | — | Pennsylvania |
| 8 | William Bush | 73 | FATHER | — | Pennsylvania |
| 9 | Jean Bush | 18 | DAUGHTER | — | Pennsylvania |
| 10 | Thomas Dugan | 54 | HEAD | Stake Dept | New Jersey |
| 11 | Mary Dugan | 52 | WIFE | — | New Jersey |
| 12 | Thomas Jr. Dugan | 24 | SON | Salesman | New Jersey |
| 13 | William Dugan | 20 | SON | Laborer | New Jersey |
| 14 | Margaret Dugan | 21 | DAUGHTER | Nurse | New Jersey |
| 15 | Ellen Dugan | 22 | DAUGHTER | Machine Operater | New Jersey |
| 16 | James Dugan THIS PERSON | 16 | SON | — | New Jersey |
| 17 | Mary Dugan | 13 | DAUGHTER | — | New Jersey |
| 18 | John Dugan | 9 | SON | — | New Jersey |
| 19 | Edward Dugan | 7 | SON | — | New Jersey |
| 20 | Henry Korb | 60 | HEAD | Machinist | New Jersey |
| 21 | Elizabeth Korb | 60 | WIFE | — | New Jersey |
| 22 | William Korb | 21 | SON | Clerk | New Jersey |
| 23 | Robert Staunton | 37 | HEAD | Operator | New York |
| 24 | Edna Staunton | 32 | WIFE | — | Pennsylvania |
| 25 | Albert Staunton | 9 | SON | — | New Jersey |
| 26 | Wallace E. Carner | 35 | HEAD | Manager | Pennsylvania |
| 27 | Kathryn Carner | 31 | Wife | — | Pennsylvania |
| 28 | Theodore Carner | 15 | Son | — | Pennsylvania |
| 29 | Walter H. Slinger | 52 | HEAD | Salesman | New Jersey |
| 30 | Sally J. Slinger | 52 | Wife | — | Pennsylvania |
| 31 | Doris M. Slinger | 21 | Daughter | Clerk | New York |
| 32 | Sally Ann Slinger | 9 | Daughter | — | New Jersey |
| 33 | Ed. Henry Slinger | 6 | Son | — | New Jersey |
| 34 | William Neal | 64 | HEAD | Owner | New Jersey |
| 35 | Helen Neal | 54 | WIFE | — | New York |
| 36 | Annie Mcgrath | 81 | HEAD | — | New Jersey |
| 37 | Frank Mcgrath | 37 | SON | Machinist | New Jersey |
| 38 | Francis Renaud | 23 | GRAND SON | Mechanic | New Jersey |
| 39 | Gertrude Neal | 33 | DAUGHTER | Sales Lady | New York |
| 40 | Ole Amundsen | 73 | HEAD | — | NORWAY |
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)