MH
Mary Hennessey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Somerset, New Jersey
Our Model Tree links this Mary Hennessey across the 1930 and 1940 US Censuses in Somerset, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1902), then head of a 9-person household.
Age 28
b. ~1902
Female
Spouse
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Somerset, New Jersey |
| Surname | Hennessey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Raritan Town Pt |
| Est. Birth Year | ~1902 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| James Hennessey | Son | — | 7 | ~1923 |
| Francis Hennessey | Son | — | ~1930 | |
| Mary Hennessey | Daughter | — | 5 | ~1925 |
| James Hennessey | Head | — | 30 | ~1900 |
| Joseph Hennessey | Son | — | 1 | ~1929 |
| John Hennessey | Son | — | 3 | ~1927 |
| Catherine Hennessey | Daughter | — | ~1930 | |
| Edward Hennessey | Son | — | 2 | ~1928 |
| Mary Hennessey | Spouse | — | 28 | ~1902 |
Census Appearances
1930
Somerset, New …
Spouse, age 28
Somerset, New Jersey · implied b. ~1902 — 9 household members
| Surname | Hennessey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Union-County, New …
Other, age 37
Union-County, New Jersey · implied b. ~1903 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessy |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Ireland |
| 1935 Residence (City) | Elizabeth |
| 1935 Residence (County) | Union |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Mary Hennessey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hennessey
Spouse · 1930 · age 28 · b. ~1902 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Somerset, New Jersey
Open full size
1930 US Federal Census — Somerset, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1384:0309)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Catherine Williams | 36 | Wife | — | Connecticut |
| 52 | Catherine Williams | 5 | Daughter | — | New Jersey |
| 53 | James Palmieri | 65 | Head | — | Italy |
| 54 | Rose Palmieri | 50 | Wife | — | Italy |
| 55 | Yvonne Palmieri | 24 | Son | — | New Jersey |
| 56 | Francis Rossi | 44 | Head | Laborer | Italy |
| 57 | Rose Rossi | 30 | Wife | — | New Jersey |
| 58 | Catherine Rossi | 13 | Daughter | — | New Jersey |
| 59 | Arnold Rossi | 10 | Son | — | New Jersey |
| 60 | Joseph Violante | 44 | Head | Repairman | Czechoslovakia |
| 61 | Anna Violante | 37 | Wife | — | Czechoslovakia |
| 62 | Joseph A. B. Violante | 6 | Son | — | New Jersey |
| 63 | Amelia S. Violante | 4 | Daughter | — | New Jersey |
| 64 | Anna Violante | 2 | Daughter | — | New Jersey |
| 65 | Rose Violante | 1 | Daughter | — | New Jersey |
| 66 | Mary Violante | 0 | Daughter | — | New Jersey |
| 67 | John Violante | 14 | Son | — | Czechoslovakia |
| 68 | Stephen Violante | 12 | Son | — | Czechoslovakia |
| 69 | Paul Violante | 10 | Son | — | Czechoslovakia |
| 70 | Andrew Violante | 8 | Son | — | Czechoslovakia |
| 71 | Joseph Ruggeri | 46 | Head | Laborer | Italy |
| 72 | Anna Ruggeri | 40 | Wife | — | Italy |
| 73 | Mary Ruggeri | 17 | Daughter | — | New Jersey |
| 74 | James Ruggeri | 16 | Son | — | New Jersey |
| 75 | John Ruggeri | 14 | Son | — | New Jersey |
| 76 | Edward Ruggeri | 12 | Son | — | New Jersey |
| 77 | Charles Ruggeri | 10 | Son | — | New Jersey |
| 78 | Albert Ruggeri | 8 | Son | — | New Jersey |
| 79 | Joseph Sletten | 46 | Head | Laborer | Italy |
| 80 | Anna Sletten | 40 | Wife | — | Italy |
| 81 | James Sletten | 16 | Son | — | New Jersey |
| 82 | John Sletten | 14 | Son | — | New Jersey |
| 83 | Edward Sletten | 12 | Son | — | New Jersey |
| 84 | Charles Sletten | 10 | Son | — | New Jersey |
| 85 | Albert Sletten | 8 | Son | — | New Jersey |
| 86 | Joseph Sletten | 6 | Son | — | New Jersey |
| 87 | James Hennessey | 30 | Head | Laborer | Ireland |
| 88 | Mary Hennessey THIS PERSON | 28 | Wife | — | Ireland |
| 89 | James Hennessey | 7 | Son | — | New Jersey |
| 90 | Mary Hennessey | 5 | Daughter | — | New Jersey |
| 91 | John Hennessey | 3 | Son | — | New Jersey |
| 92 | Edward Hennessey | 2 | Son | — | New Jersey |
| 93 | Joseph Hennessey | 1 | Son | — | New Jersey |
| 94 | Francis Hennessey | 0 | Son | — | New Jersey |
| 95 | Catherine Hennessey | 0 | Daughter | — | New Jersey |
| 96 | Samuel Logan | 35 | Head | Carpenter | Russia |
| 97 | Mary Logan | 26 | Wife | — | Poland |
| 98 | Peter Stozinsky | 38 | Head | Laborer | Austria |
| 99 | Antonia Stozinsky | 33 | Wife | — | Austria |
| 100 | Joseph Stozinsky | 13 | Son | — | 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)