JD
John Duggan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hudson, New Jersey
Our Model Tree links this John Duggan across the 1930 and 1940 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 10-person household.
Age 16
b. ~1914
Male
Son
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Hudson, New Jersey |
| Surname | Duggan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | Odd jobs |
| Industry | Ice & Coal Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Odd Jobs |
| Township / Ward | Jersey City |
| 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Duggan | Head | — | 42 | ~1888 |
| James Duggan | Son | — | 18 | ~1912 |
| Rosemary Duggan | Daughter | — | 13 | ~1917 |
| James Duggan | Son | — | 6 | ~1924 |
| Elizabeth Duggan | Spouse | — | 38 | ~1892 |
| John Duggan | Son | — | 16 | ~1914 |
| Anna Duggan | Daughter | — | 14 | ~1916 |
| Edward Duggan | Son | — | 7 | ~1923 |
| Thomas Duggan | Son | — | 20 | ~1910 |
| William Duggan | Son | — | 11 | ~1919 |
Census Appearances
1930
Hudson, New …
Son, age 16
Hudson, New Jersey · implied b. ~1914 — 10 household members
| Surname | Duggan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | New Jersey |
| Occupation | Odd jobs |
| Industry | Ice & Coal Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 26
Union-County, New Jersey · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Fanwood, Borough of |
| 1935 Residence (County) | Union |
| Occupation | Editor |
| Industry | House organ |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | C-2 |
| 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 Duggan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Duggan
Son · 1930 · age 16 · b. ~1914 · New Jersey
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Sibling
Rosemary Duggan
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Duggan
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Duggan
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Duggan
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Duggan
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Duggan
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Duggan
Sibling · 1930 · age 11
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 — Hudson, New Jersey
Open full size
1930 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1377:0840)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Lizzie | 16 | Daughter | — | New Jersey |
| 52 | John | 15 | Son | — | New Jersey |
| 53 | John Duggan | 42 | Head | — | Northern Ireland |
| 54 | Elizabeth Duggan | 38 | Wife | — | New Jersey |
| 55 | Thomas H. Duggan | 20 | Son | — | New Jersey |
| 56 | James Duggan | 18 | Son | Card Cutter | New Jersey |
| 57 | John Duggan THIS PERSON | 16 | Son | Odd Jobs | New Jersey |
| 58 | Anna Duggan | 14 | Daughter | — | New Jersey |
| 59 | Rosemary Duggan | 13 | Daughter | — | New Jersey |
| 60 | William Duggan | 11 | Son | — | New Jersey |
| 61 | Edward Duggan | 7 | Son | — | New Jersey |
| 62 | James Duggan | 6 | Son | — | New Jersey |
| 63 | Samuel Kovacs | 45 | Head | Moulder | Czechoslovakia |
| 64 | Agatha Kovacs | 38 | Wife | — | Czechoslovakia |
| 65 | Agatha Kovacs | 13 | Daughter | — | New Jersey |
| 66 | Frederick Woodruff | 33 | Head | Typewriter | New Jersey |
| 67 | Ada H. Woodruff | 33 | Wife | — | New Jersey |
| 68 | Benjamin Scampoli | 46 | Head | Baker | Italy |
| 69 | Anna Scampoli | 41 | Wife | — | Italy |
| 70 | Bella Scampoli | 11 | Granddaughter | — | New York |
| 71 | Russell Lee | 35 | Head | Plumber Helper | California |
| 72 | Mildred Lee | 30 | Wife | Cook | Virginia |
| 73 | Herman Scoggins | 26 | Head | Driver | Virginia |
| 74 | Velma Scoggins | 26 | Wife | Laundress | Virginia |
| 75 | Salvatore Carla | 68 | Head | — | Italy |
| 76 | Mary H. Carla | 61 | Wife | — | Italy |
| 77 | Mary Carla | 20 | Daughter | Clerk | New Jersey |
| 78 | Frank Carla | 18 | Son | — | New Jersey |
| 79 | Frank Provitt | 30 | Head | Chauffeur | Italy |
| 80 | Julia H. Provitt | 25 | Wife | — | Italy |
| 81 | Dolores Provitt | 6 | Daughter | — | New York |
| 82 | Rose Provitt | 4 | Daughter | — | New York |
| 83 | Frank Provitt | 2 | Son | — | New York |
| 84 | Andrew Kovacs | 47 | Head | Blacksmith | Lithuania |
| 85 | Agatha H. Kovacs | 42 | Wife | — | Lithuania |
| 86 | William Kovacs | 19 | Son | Painter | New Jersey |
| 87 | Andrew Kovacs | 17 | Son | Painter | New Jersey |
| 88 | Agatha Kovacs | 15 | Daughter | — | New Jersey |
| 89 | Anna Kovacs | 13 | Daughter | — | New Jersey |
| 90 | John Kovacs | 11 | Son | — | New Jersey |
| 91 | Walter Kovacs | 7 | Son | — | New Jersey |
| 92 | Mary Kovacs | 5 | Daughter | — | New Jersey |
| 93 | Harry Gennaro | 31 | Head | Proprietor | Italy |
| 94 | Annie Gennaro | 21 | Wife | — | Italy |
| 95 | Mary Gennaro | 5 | Daughter | — | Connecticut |
| 96 | Rose Gennaro | 3 | Daughter | — | Connecticut |
| 97 | James Gennaro | 1 | Son | — | Connecticut |
| 98 | Frank Gennaro | 0 | Son | — | New Jersey |
| 99 | Walter Allen | 42 | Head | Tax Collector | New Jersey |
| 100 | Rachael Allen | 36 | Wife | — | New Jersey |
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)