MD
Mary Dwyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Mary Dwyer across the 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 7-person household.
Age 31
b. ~1909
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Dwyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Occupation | teacher |
| Industry | public school |
| Class of Worker | GW |
| Income (1939) | 1500 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Teacher |
| Township / Ward | New York City |
| Est. Birth Year | ~1909 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Ellen Dwyer | Daughter | — | 34 | ~1906 |
| Mary Dwyer | Daughter | — | 31 | ~1909 |
| Catherine Dwyer | Daughter | — | 23 | ~1917 |
| Rose Dwyer | Daughter | — | 19 | ~1921 |
| Peter Dwyer | Head | — | 62 | ~1878 |
| Ellen Dwyer | Spouse | — | 55 | ~1885 |
| Peter Dwyer | Son | — | 24 | ~1916 |
Census Appearances
1930
Bronx, New …
Daughter, age 21
Bronx, New York · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dwyer |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Daughter, age 31
Bronx-County, New York · implied b. ~1909 — 7 household members
| Surname | Dwyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Occupation | teacher |
| Industry | public school |
| Class of Worker | GW |
| Income (1939) | 1500 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| 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 Dwyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dwyer
Daughter · 1940 · age 31 · b. ~1909 · New York
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Sibling
Rose Dwyer
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Dwyer
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Dwyer
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Dwyer
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-02478-00137)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fanny Jones | 62 | Wife | — | Russia |
| 2 | Irving Jones | 38 | Son | Linotyper | New York |
| 3 | Arthur Freeman | 39 | Son-in-law | Salesman | New York |
| 4 | Anne Freeman | 32 | Daughter | — | New York |
| 5 | Rocco Taldiffonio | 42 | Head | Salesman | Russia |
| 6 | Fanny Taldiffonio | 47 | Wife | Operator | Russia |
| 7 | Eleanor Taldiffonio | 17 | Daughter | — | New York |
| 8 | Max Rishen | 44 | Lodger | Salesman | Russia |
| 9 | Belle Rishen | 40 | Lodger | — | Russia |
| 10 | Joseph Goldsmith | 54 | Head | Operator | Russia |
| 11 | Kate Goldsmith | 46 | Wife | — | Italy |
| 12 | Martin Goldsmith | 19 | Son | — | New York |
| 13 | Arthur Goldsmith | 17 | Son | New Worker | New York |
| 14 | Norman Goldsmith | 13 | Son | — | New York |
| 15 | Ida Goldsmith | 9 | Daughter | — | New York |
| 16 | Irving Goldsmith | 7 | Son | — | New York |
| 17 | Peter Dwyer | 62 | Head | — | Eire |
| 18 | Ellen Dwyer | 55 | Wife | — | Eire |
| 19 | Ellen Dwyer | 34 | Daughter | Teacher | New York |
| 20 | Mary Dwyer THIS PERSON | 31 | Daughter | Teacher | New York |
| 21 | Peter Jr. Dwyer | 24 | Son | — | New York |
| 22 | Catherine Dwyer | 23 | Daughter | — | New York |
| 23 | Rose Dwyer | 19 | Daughter | — | New York |
| 24 | Charles Cosentino | 52 | Head | Pattern Maker | Italy |
| 25 | Mary Cosentino | 48 | Wife | — | Italy |
| 26 | Alphonso Cosentino | 22 | Son | — | New York |
| 27 | Frances Cosentino | 20 | Daughter | Floor Girl | New York |
| 28 | John Liefermann | 51 | Head | City Fireman | New York |
| 29 | Anne Liefermann | 46 | Wife | — | New York |
| 30 | Doris Liefermann | 21 | Daughter | Sales Clerk | New York |
| 31 | Valentine Liefermann | 20 | Son | Butchers Helper | New York |
| 32 | Mary Witt | 58 | Head | Butchers Helper | New York |
| 33 | Sophia Witt | 51 | Sister | — | New York |
| 34 | James Kelly | 73 | Head | Master Plumber | New York |
| 35 | Anna Kelly | 49 | Wife | — | New York |
| 36 | William Chandler | 27 | Head | Typist | New York |
| 37 | Sally Chandler | 22 | Wife | — | New York |
| 38 | William Chandler | 1 | Son | — | New York |
| 39 | Gustav Sonnenberg | 38 | Head | Mechanic | New York |
| 40 | Adoline Sonnenberg | 39 | Wife | Salesgirl | Poland |
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)