MC
Mary Coffey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Coffey across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | COFFEY |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Nyc |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| Mary Coffey | Daughter | — | 14 | ~1926 |
| Michael Coffey | Son | — | 8 | ~1932 |
| Emma Coffey | Daughter | — | 7 | ~1933 |
| Albert Coffey | Son | — | 3 | ~1937 |
| Mabel Coffey | Daughter | — | 9 | ~1931 |
| Emma Coffey | Head | — | 39 | ~1901 |
| Alice Coffey | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Bronx, New …
Daughter, age 3
Bronx, New York · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 14
Kings-County, New York · implied b. ~1926 — 7 household members
| Surname | COFFEY |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (County) | Kings |
| Highest Grade | No 7 |
| 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 Coffey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Coffey
Daughter · 1940 · age 14 · b. ~1926 · New York
★ You are viewing this record
Sibling
Albert Coffey
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Coffey
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Coffey
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Coffey
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Coffey
Sibling · 1940 · age 9
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02569-00768)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nora Hickey | 59 | Wife | Housework | Ireland |
| 42 | George Hickey | 25 | Son | — | New York |
| 43 | Cornelius Hickey | 25 | Son | 40 | New York |
| 44 | Mary Hickey | 22 | Daughter | 40 | New York |
| 45 | Anna Hickey | 20 | Daughter | 40 | New York |
| 46 | James Hickey | 15 | Son | — | New York |
| 47 | Michael Hickey | 13 | Son | — | New York |
| 48 | William Heegan | 34 | Head | 16 | New York |
| 49 | Anna Heegan | 31 | Wife | — | New York |
| 50 | James Heegan | 8 | Son | — | New York |
| 51 | William Heegan | 6 | Son | — | New York |
| 52 | Robert Heegan | 5 | Son | — | New York |
| 53 | Gerald Heegan | 4 | Son | — | New York |
| 54 | Barbara Heegan | 3 | Daughter | — | New York |
| 55 | Joseph Heegan | 2 | Son | — | New York |
| 56 | Rose Marie Heegan | 0 | Daughter | — | New York |
| 57 | Fred Blashe | 65 | Head | 40 | Seville U.S. |
| 58 | Rose Blashe | 52 | Wife | Housework | Ireland |
| 59 | John Blashe | 22 | Son | 8 | New York |
| 60 | Thomas Blashe | 19 | Son | 48 | New York |
| 61 | Fred Blashe | 17 | Son | — | New York |
| 62 | Lillian Blashe | 14 | Daughter | — | New York |
| 63 | Philip Blashe | 11 | Son | — | New York |
| 64 | — | None | — | — | New York |
| 65 | — | None | — | — | New York |
| 66 | Thomas Whittingham | 45 | Head | Machinist Helper | England |
| 67 | Alice Whittingham | 35 | Wife | — | New York |
| 68 | Thomas Whittingham | 6 | Son | — | New York |
| 69 | Mary Whittingham | 5 | Daughter | — | New York |
| 70 | Emma Coffey | 39 | Head | — | New York |
| 71 | Mary Coffey THIS PERSON | 14 | Daughter | — | New York |
| 72 | Alice Coffey | 13 | Daughter | — | New York |
| 73 | Mabel Coffey | 9 | Daughter | — | New York |
| 74 | Michael Coffey | 8 | Son | — | New York |
| 75 | Emma Coffey | 7 | Daughter | — | New York |
| 76 | Albert Coffey | 3 | Son | — | New York |
| 77 | Michael Murphy | 54 | Head | — | New York |
| 78 | Mary Murphy | 48 | Wife | — | New York |
| 79 | Joseph Murphy | 22 | Son | — | New York |
| 80 | Michael Murphy | 19 | Son | — | New York |
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)