MH
Mary Hennessy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Mary Hennessy across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 3-person household.
Age 64
b. ~1876
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Hennessy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laundress |
| Industry | Department of Hospitals |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 448 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Laundress |
| Township / Ward | New York City |
| Est. Birth Year | ~1876 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Hennessy | Other | — | 16 | ~1924 |
| Mary Hennessy | Daughter | — | 35 | ~1905 |
| Mary Hennessy | Head | — | 64 | ~1876 |
Census Appearances
1920
New York, …
Spouse, age 42
New York, New York · implied b. ~1878 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
Spouse, age 54
Kings, New York · implied b. ~1876 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Bronx-County, New …
Head, age 64
Bronx-County, New York · implied b. ~1876 — 3 household members
| Surname | Hennessy |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | New York City |
| Naturalization Status | Naturalized |
| Occupation | Laundress |
| Industry | Department of Hospitals |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 448 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| 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 Hennessy across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hennessy
Head · 1940 · age 64 · b. ~1876 · 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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02469-00412)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Flynn | 18 | Daughter | — | New York |
| 2 | Margaret Cashman | 43 | Wife | — | New York |
| 3 | Edward Cashman | 24 | Son | Bellboy | New York |
| 4 | Helen Cashman | 21 | Daughter | — | New York |
| 5 | Patrick Finnegan | 58 | Head | — | Ireland |
| 6 | Ellen Finnegan | 53 | Wife | — | Ireland |
| 7 | Helen Finnegan | 24 | Daughter | Elevator Operator | New York |
| 8 | Patrick Finnegan | 21 | Son | — | New York |
| 9 | Mary Hennessy THIS PERSON | 64 | Head | Laundress | Ireland |
| 10 | Mary Hennessy | 35 | Daughter | Sales Lady | New York |
| 11 | Anna Hennessy | 16 | Grand Daughter | — | New York |
| 12 | Marguerita Ferreira | 58 | Head | — | Portugal |
| 13 | Joseph Ferreira | 19 | Son | Laborer | New York |
| 14 | Leonora Ferreira | 18 | Daughter | Nurse | New York |
| 15 | Edwin Ferreira | 16 | Son | — | New York |
| 16 | Frank Connolly | 38 | Head | Foreman | Ireland |
| 17 | Bridget Connolly | 42 | Wife | — | Ireland |
| 18 | Mary Connolly | 20 | Daughter | Sales Lady | Scotland |
| 19 | Francis Connolly | 18 | Son | Messenger Boy | Scotland |
| 20 | James Connolly | 15 | Son | — | Scotland |
| 21 | Alfred Connolly | 11 | Son | — | New York |
| 22 | Joseph Connolly | 5 | Son | — | New York |
| 23 | Anna Connolly | 3 | Daughter | — | New York |
| 24 | John Mccann | 35 | Head | Laborer | New York |
| 25 | Agnes Mccann | 34 | Wife | — | New York |
| 26 | John Mccann | 6 | Son | — | New York |
| 27 | Margaret Mccann | 3 | Daughter | — | New York |
| 28 | James Mccann | 0 | Son | — | New York |
| 29 | William Walsh | 36 | Head | Electrician | New York |
| 30 | Catherine Walsh | 36 | Wife | — | New York |
| 31 | Marion Walsh | 17 | Daughter | — | New York |
| 32 | Rita Walsh | 13 | Daughter | — | Pennsylvania |
| 33 | Timothy Walsh | 65 | Father in law | — | Ireland |
| 34 | Catherine Elliott | 67 | Head | — | New York |
| 35 | Catherine Hennesy | 70 | Head | — | New York |
| 36 | Anna Hennesy | 35 | Daughter | — | New York |
| 37 | James Hennesy | 31 | Son | Plasterer | New York |
| 38 | Delia Corbitt | 65 | Head | Staker | New York |
| 39 | Delia Corbitt | 64 | Wife | — | New York |
| 40 | William Farrelly | 38 | Son in law | Runner | New York |
Related Census Records
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)