JD
John Dempsey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Monmouth, New Jersey
Our Model Tree links this John Dempsey across the 1920 and 1930 US Censuses in Monmouth, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 9-person household.
Age 52
b. ~1878
Male
Head
Born: New Jersey
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Monmouth, New Jersey |
| Surname | Dempsey |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 26 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | mason |
| Industry | contracting |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Mason |
| Township / Ward | Highlands Borough |
| Est. Birth Year | ~1878 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thomas Dempsey | Son | — | ~1930 | |
| George Dempsey | Son | — | 18 | ~1912 |
| Gerard Dempsey | Son | — | 8 | ~1922 |
| Frederick Dempsey | Son | — | 12 | ~1918 |
| Mary Dempsey | Spouse | — | 45 | ~1885 |
| John Dempsey | Head | — | 52 | ~1878 |
| Helen Dempsey | Daughter | — | 15 | ~1915 |
| Joseph Dempsey | Son | — | 20 | ~1910 |
| James Dempsey | Son | — | 11 | ~1919 |
Census Appearances
1920
Monmouth, New …
Head, age 41
Monmouth, New Jersey · implied b. ~1879 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Mason |
| Industry | Builder |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | M |
| Birth State | New Jersey |
| Birth Country | United States |
| Year of Naturalization | O |
| Birthplace (normalized) | new jersey |
1930
Monmouth, New …
Head, age 52
Monmouth, New Jersey · implied b. ~1878 — 9 household members
| Surname | Dempsey |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 26 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | mason |
| Industry | contracting |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| 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 Monmouth, New Jersey, using XGBoost record linkage.
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This person
Anchor record
John Dempsey
Head · 1930 · age 52 · b. ~1878 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Monmouth, New Jersey
Open full size
1930 US Federal Census — Monmouth, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1370:0983)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Patterson | 71 | Head | Mover | New Jersey |
| 52 | Mary Patterson | 65 | Wife | None | New York |
| 53 | Eugene Patterson | 27 | Son | Chauffeur | New Jersey |
| 54 | Charles E. Patterson | 20 | Grandson | Orderly | New York |
| 55 | Joseph F. Patterson | 17 | Grandson | None | New York |
| 56 | M. Anna | 44 | Head | Operator | Austria |
| 57 | Howard J. Anna | 21 | Son | Tester | New Jersey |
| 58 | Michel O. Anna | 19 | Son | None | New Jersey |
| 59 | David B. Anna | 17 | Son | None | New Jersey |
| 60 | Mary A. Anna | 12 | Daughter | None | New Jersey |
| 61 | Edward Foster | 39 | Head | Fisherman | New Jersey |
| 62 | Irene Foster | 33 | Wife | Shucker | New York |
| 63 | David L. Patterson | 38 | Head | Meter Reader | New York |
| 64 | Lucy A. Patterson | 31 | Wife | None | New Jersey |
| 65 | Gladys A. Patterson | 8 | Daughter | None | New Jersey |
| 66 | James J. Walsh | 51 | Head | Gardener | New Jersey |
| 67 | Nellie E. Walsh | 51 | Wife | None | New Jersey |
| 68 | James V. Walsh | 11 | Son | None | New Jersey |
| 69 | Clarence V. Walsh | 9 | Son | None | New Jersey |
| 70 | William D. Walsh | 6 | Son | None | New Jersey |
| 71 | Gloria M. Walsh | 1 | Daughter | None | New Jersey |
| 72 | Arthur A. Liming | 44 | Head | Painter | New Jersey |
| 73 | Rebecca M. Liming | 30 | Wife | None | New Jersey |
| 74 | Dennis Morgan Liming | 13 | Step Son | Salesman | New Jersey |
| 75 | William J. Liming | 7 | Step Son | None | New Jersey |
| 76 | John H. Dempsey THIS PERSON | 52 | Head | Mason | New Jersey |
| 77 | Mary E. Dempsey | 45 | Wife | None | New Jersey |
| 78 | Joseph A. Dempsey | 20 | Son | Mason | New Jersey |
| 79 | George V. Dempsey | 18 | Son | Salesman | New Jersey |
| 80 | Helen A. Dempsey | 15 | Daughter | None | New Jersey |
| 81 | Frederick J. Dempsey | 12 | Son | None | New Jersey |
| 82 | James J. Dempsey | 11 | Son | None | New Jersey |
| 83 | Gerard F. Dempsey | 8 | Son | None | New Jersey |
| 84 | Thomas R. Dempsey | 0 | Son | None | New Jersey |
| 85 | Frederick I. Voorhees | 54 | Head | Fisherman | New Jersey |
| 86 | Ella B. Voorhees | 48 | Wife | None | New Jersey |
| 87 | Alida R. Voorhees | 29 | Daughter | Nurse | New Jersey |
| 88 | Allen R. Voorhees | 24 | Son | Plumber | New Jersey |
| 89 | Frederick S. Voorhees | 19 | Son | Helper | New Jersey |
| 90 | Percy C. Hauser | 52 | Head | Fisherman | New Jersey |
| 91 | Ruth D. Hauser | 27 | Wife | None | New York |
| 92 | Ruth A. Hauser | 8 | Daughter | None | New Jersey |
| 93 | Edna K. Hauser | 8 | Daughter | None | New Jersey |
| 94 | Kathleen Hauser | 6 | Daughter | None | New Jersey |
| 95 | Beatrice Hauser | 4 | Daughter | None | New Jersey |
| 96 | Priscilla Hauser | 2 | Daughter | None | New Jersey |
| 97 | Percy Jr. Hauser | 0 | Son | None | New Jersey |
| 98 | Janet Darby | 80 | Head | None | New York |
| 99 | Charles E. Darby | 55 | Son | Fisherman | New York |
| 100 | Albert A. Daust | 38 | Head | Engineer | New York |
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)