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Mary Hennessy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-York-County, New York
Our Model Tree links this Mary Hennessy across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 9-person household.
Age 56
b. ~1884
Female
Spouse
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Hennessy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1884 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Hennessy | Son | — | 23 | ~1917 |
| Theresa Hennessy | Daughter | — | 13 | ~1927 |
| Mary Hennessy | Spouse | — | 56 | ~1884 |
| Winifred Connors | Other | — | 18 | ~1922 |
| Veronica Hennessy | Daughter | — | 29 | ~1911 |
| James Connors | Other | — | 46 | ~1894 |
| Joseph Hennessy | Son | — | 20 | ~1920 |
| James Hennessy | Head | — | 60 | ~1880 |
| William Connors | Other | — | 13 | ~1927 |
Census Appearances
1930
New York, …
Other, age 45
New York, New York · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessey |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 21 |
| Father's Birthplace | New York |
| Mother's Birthplace | South Ireland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Spouse, age 56
New-York-County, New York · implied b. ~1884 — 9 household members
| Surname | Hennessy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Mary Hennessy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hennessy
Spouse · 1940 · age 56 · b. ~1884 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02630-00979)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Hennessy | 60 | Head | Inspector | New York |
| 2 | Mary Hennessy THIS PERSON | 56 | Wife | — | New York |
| 3 | Veronica Hennessy | 29 | Daughter | Typist | New York |
| 4 | James Hennessy | 23 | Son | Reporter | New York |
| 5 | Joseph Hennessy | 20 | Son | New Worker | New York |
| 6 | Theresa Hennessy | 13 | Daughter | — | New York |
| 7 | James Connors | 46 | Brother in law | Dock Worker | New York |
| 8 | Winifred Connors | 18 | Niece | — | New York |
| 9 | William Connors | 13 | Nephew | — | New York |
| 10 | Elmer Noble | 36 | Head | Helper | Massachusetts |
| 11 | Isabell Noble | 35 | Wife | — | Massachusetts |
| 12 | Elmer Noble | 14 | Son | — | Massachusetts |
| 13 | Wallace Noble | 11 | Son | — | Massachusetts |
| 14 | Arthur Goguen | 58 | Head | Clerk | Canada French |
| 15 | Maud Goguen | 54 | Wife | — | Florida |
| 16 | Nicholas Workovich | 57 | Lodger | Porter | Yugoslavia |
| 17 | Ernest Humphreys | 48 | Lodger | Laborer | Ohio |
| 18 | John Conley | 50 | Lodger | — | Eire |
| 19 | Joseph Baron | 39 | Lodger | Helper | New York |
| 20 | Thomas Kelly | 65 | Lodger | — | New Jersey |
| 21 | Leah Kennedy | 82 | Lodger | — | France |
| 22 | Casper Russel | 28 | Lodger | Packer | Illinois |
| 23 | Catherine Donohue | 77 | Lodger | — | Eire |
| 24 | William Clark | 62 | Lodger | — | New York |
| 25 | James Mcgowan | 54 | Lodger | Clerk | New Jersey |
| 26 | Thomas Grady | 69 | Lodger | — | New York |
| 27 | Edward French | 30 | Lodger | Clerk | Texas |
| 28 | Alexander Pickel | 64 | Lodger | — | Pennsylvania |
| 29 | John Mackin | 31 | Lodger | Chauffeur | Nevada |
| 30 | George Laughlin | 81 | Lodger | — | Eire |
| 31 | Henry Henson | 58 | Lodger | Laborer | Maryland |
| 32 | Samuel Latham | 73 | Lodger | — | Illinois |
| 33 | James Kelly | 41 | Lodger | Helper | New Jersey |
| 34 | Joseph Gonzales | 41 | Lodger | Helper | Spain |
| 35 | Abraham Payenson | 54 | Lodger | Tailor | Russia |
| 36 | Paul Boland | 51 | Lodger | Salesman | Yugoslavia |
| 37 | Catherine Hardiman | 49 | Lodger | Laundress | Eire |
| 38 | Henry Adamson | 40 | Lodger | Porter | New Jersey |
| 39 | Richard Murray | 34 | Lodger | Mechanic | New York |
| 40 | Sarah Mccoy | 42 | Lodger | Typist | Illinois |
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)