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James Dempsey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this James Dempsey across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 7-person household.
Age 51
b. ~1889
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Dempsey |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Union City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Deckhand |
| Industry | Tug Boat RR |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1750 |
| Highest Grade | No 8 |
| 1935 Residence | Same H |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Deckhand |
| Township / Ward | Union City |
| Est. Birth Year | ~1889 |
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 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Julia Dempsey | Spouse | — | 50 | ~1890 |
| Katherine Dempsey | Daughter | — | 24 | ~1916 |
| Julia Dempsey | Daughter | — | 21 | ~1919 |
| Arthur Dempsey | Son | — | 27 | ~1913 |
| James Dempsey | Head | — | 51 | ~1889 |
| Joseph Dempsey | Son | — | 16 | ~1924 |
| Theresa Dempsey | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Hudson, New …
Head, age 40
Hudson, New Jersey · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 23 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Deck Hand |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Hudson-County, New …
Head, age 51
Hudson-County, New Jersey · implied b. ~1889 — 7 household members
| Surname | Dempsey |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Union City |
| 1935 Residence (County) | Hudson |
| Occupation | Deckhand |
| Industry | Tug Boat RR |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1750 |
| Highest Grade | No 8 |
| 1935 Residence | Same H |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Dempsey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Dempsey
Head · 1940 · age 51 · b. ~1889 · 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
37 people indexed on this census page (nara:1940:m-t0627-02353-00701)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Amy Reade | 15 | Daughter | — | New Jersey |
| 42 | Helen Reade | 14 | Daughter | — | New Jersey |
| 43 | Kenneth Reade | 12 | Son | — | New Jersey |
| 44 | Peter Vollshmuth | 50 | Head | Baker | Germany |
| 45 | George Arena | 45 | Head | Shop Maker | Italy |
| 46 | Thomas Mackey | 39 | Head | Laborer | Ireland |
| 47 | Otilia Mackey | 30 | Wife | — | Ireland |
| 48 | Thomas Mackey | 9 | Son | — | New Jersey |
| 49 | Joseph Mackey | 8 | Son | — | New Jersey |
| 50 | Charles Mackey | 5 | Son | — | Ireland |
| 51 | William Waltman | 44 | Head | Waitress | Germany |
| 52 | Anna Mary Waltman | 38 | Wife | Cook | Germany |
| 53 | Henry H. Waltman | 19 | Daughter | Bookkeeping | Germany |
| 54 | William Waltman | 9 | Son | — | New Jersey |
| 55 | John Recchia | 48 | Head | Laborer | Italy |
| 56 | Grace Recchia | 44 | Wife | — | Italy |
| 57 | Chris Recchia | 23 | Son | Examiner | New Jersey |
| 58 | Frank Recchia | 21 | Son | New Worker | New Jersey |
| 59 | Carmela Recchia | 19 | Daughter | Packer | New Jersey |
| 60 | Rita Recchia | 17 | Daughter | New Worker | New Jersey |
| 61 | Mary Recchia | 10 | Daughter | — | New Jersey |
| 62 | John B. Schader | 58 | Head | Driver | Germany |
| 63 | Rose Schader | 55 | Wife | — | New Jersey |
| 64 | Gertrude Schader | 19 | Daughter | Driver Helper | New Jersey |
| 65 | James Dempsey THIS PERSON | 51 | Head | Deckhand | New York |
| 66 | Julia Dempsey | 50 | Wife | — | New York |
| 67 | Arthur Dempsey | 27 | Son | Deckhand | New York |
| 68 | Katherine Dempsey | 24 | Daughter | Operator | New York |
| 69 | Julia Dempsey | 21 | Daughter | Packer | New Jersey |
| 70 | Joseph Dempsey | 16 | Son | — | New Jersey |
| 71 | Theresa Dempsey | 12 | Daughter | — | New Jersey |
| 72 | Christopher Maroni | 45 | Head | Bartender | Italy |
| 73 | Hortense Maroni | 47 | Wife | — | France |
| 74 | Mario Maroni | 18 | Son | — | New York |
| 75 | Gloria Maroni | 15 | Daughter | — | New Jersey |
| 76 | John Motica | 33 | Head | Mechanic | Italy |
| 77 | Anna Motica | 42 | Wife | — | 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)