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John Dempsey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this John Dempsey across the 1920 and 1930 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 7-person household.
Age 13
b. ~1917
Male
Son
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | Dempsey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Newark City |
| Est. Birth Year | ~1917 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Dempsey | Other | — | 37 | ~1893 |
| Patrick Dempsey | Head | — | 40 | ~1890 |
| John Dempsey | Son | — | 13 | ~1917 |
| Joe Dempsey | Son | — | 11 | ~1919 |
| Ruth Dempsey | Daughter | — | 15 | ~1915 |
| Elizabeth Dempsey | Daughter | — | 17 | ~1913 |
| Frank Dempsey | Son | — | 9 | ~1921 |
Census Appearances
1920
Essex, New …
Son, age 3
Essex, New Jersey · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 13
Essex, New Jersey · implied b. ~1917 — 7 household members
| Surname | Dempsey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Can Read/Write | Yes |
| 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 Dempsey across 2 US Census years (1920 and 1930) in Essex, New Jersey, using XGBoost record linkage.
Show:
This person
Anchor record
John Dempsey
Son · 1930 · age 13 · b. ~1917 · New Jersey
★ You are viewing this record
Sibling
Elizabeth Dempsey
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joe Dempsey
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Dempsey
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Dempsey
Sibling · 1930 · age 15
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 — Essex, New Jersey
Open full size
1930 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1339:0418)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Lenick | 25 | Head | Chauffeur | Austria |
| 52 | Felicia Lenick | 24 | Wife-H | None | New Jersey |
| 53 | Helen Lenick | 4 | Daughter | None | New Jersey |
| 54 | Clara Lenick | 2 | Daughter | None | New Jersey |
| 55 | Dorothy Lenick | 1 | Daughter | None | New Jersey |
| 56 | Wendeen Gerhard | 62 | Head | Foreman | Holland |
| 57 | Lucy Gerhard | 47 | Wife-H | None | Germany |
| 58 | Lucille Gerhard | 22 | Daughter | Accountant | New Jersey |
| 59 | — | 25 | Head | Gang Chief | New Jersey |
| 60 | — | 21 | Wife-H | None | New Jersey |
| 61 | — | None | — | — | — |
| 62 | — | None | — | — | — |
| 63 | — | None | — | — | — |
| 64 | Patrick Dempsey | 40 | Head | Inspector | New Jersey |
| 65 | Elizabeth Dempsey | 37 | Wife-H | None | New Jersey |
| 66 | Elizabeth Dempsey | 17 | Daughter | None | New Jersey |
| 67 | Ruth Dempsey | 15 | Daughter | None | New Jersey |
| 68 | John Dempsey THIS PERSON | 13 | Son | None | New Jersey |
| 69 | Joe Dempsey | 11 | Son | None | New Jersey |
| 70 | Frank Dempsey | 9 | Son | None | New Jersey |
| 71 | Philip Mcgovern | 57 | Head | Policeman | New Jersey |
| 72 | Mary Mcgovern | 55 | Wife-H | None | New York |
| 73 | Philip Mcgovern | 31 | Son | Chauffeur | New Jersey |
| 74 | Mary Mcgovern | 27 | Daughter | None | New Jersey |
| 75 | Margaret Mcgovern | 25 | Daughter | Inspector | New Jersey |
| 76 | Daniel Mcgovern | 23 | Son | Instructor | New Jersey |
| 77 | Francis Mcgovern | 22 | Son | Chauffeur | New Jersey |
| 78 | Joseph Mcgovern | 35 | Head | Teacher | New Jersey |
| 79 | Margaret Mcgovern | 29 | Wife-H | Clerk | Scotland |
| 80 | Elizabeth Tuson | 40 | Head-H | Owner | New Jersey |
| 81 | David Tuson | 19 | Son | Mechanic | New Jersey |
| 82 | Edith Tuson | 15 | Daughter | None | New Jersey |
| 83 | John Tuson | 11 | Son | None | New Jersey |
| 84 | William Tuson | 8 | Son | None | New Jersey |
| 85 | Catherine Collen | 75 | Head-H | None | Ireland |
| 86 | Richard Collen | 47 | Son | Moulder | New Jersey |
| 87 | James Collen | 45 | Son | Foreman | New Jersey |
| 88 | Mary Collen | 35 | Daughter | None | New Jersey |
| 89 | Stephen Kulyash | 53 | Head | Cabinet Maker | Austria Hung |
| 90 | Anna Kulyash | 50 | Wife-H | Janitress | Austria Hung |
| 91 | Helena Kulyash | 19 | Daughter | Operator | Austria Hung |
| 92 | Stephen Kulyash | 18 | Son | Clerk | New Jersey |
| 93 | Margaret Kulyash | 16 | Daughter | None | New Jersey |
| 94 | Victor Kulyash | 15 | Son | None | New Jersey |
| 95 | — | None | — | — | — |
| 96 | Bridget Smith | 80 | Head-H | House Keeper | Ireland |
| 97 | Margaret Brennan | 40 | Sister | Clerk | New Jersey |
| 98 | Helen Brennan | 33 | Sister | Teacher | New Jersey |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
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)