MH
Mary Hickey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Hickey across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents James & Nora — first a daughter (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | HICKEY |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | 40 |
| Industry | laundry |
| Class of Worker | laundry |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | 40 |
| Township / Ward | Nyc |
| Est. Birth Year | ~1918 |
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 Hickey | Daughter | — | 22 | ~1918 |
| Anna Hickey | Daughter | — | 20 | ~1920 |
| Cornelius Hickey | Son | — | 25 | ~1915 |
| George Hickey | Son | — | 25 | ~1915 |
| Michael Hickey | Son | — | 13 | ~1927 |
| James Hickey | Son | — | 15 | ~1925 |
| Nora Hickey | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Kings, New …
Daughter, age 1
Kings, New York · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Daughter, age 11
Kings, New York · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 22
Kings-County, New York · implied b. ~1918 — 7 household members
| Surname | HICKEY |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (County) | Kings |
| Occupation | 40 |
| Industry | laundry |
| Class of Worker | laundry |
| 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 Hickey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Hickey (~0.92 confidence) and mother Nora Hickey (~0.92 confidence) and mother Catherine Hickey (~0.92 confidence) and father John Hickey (~0.92 confidence) and mother Nora Hickey (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Hickey
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Nora Hickey
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Catherine Hickey
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
John Hickey
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Nora Hickey
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hickey
Daughter · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
James Hickey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Hickey
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cornelius Hickey
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Hickey
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Hickey
Sibling · 1940 · age 13
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 THIS PERSON | 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 | 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 |
Related Census Records
Pedigree Summary
Mary + 5 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)