MG
Mary Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Gray across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents John & James — first a daughter (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Gray |
| 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, Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Tele Op. |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Tele Op. |
| Township / Ward | New York City Brooklyn |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Gray | Daughter | — | 31 | ~1909 |
| Frances Gray | Daughter | — | 28 | ~1912 |
| John Gray | Head | — | 58 | ~1882 |
| Michael Gray | Son | — | 25 | ~1915 |
| Catherine Gray | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Kings, New …
Daughter, age 11
Kings, New York · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | England |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Daughter, age 21
Kings, New York · implied b. ~1909 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Housekeeper |
| Industry | At Home |
| Can Read/Write | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 31
Kings-County, New York · implied b. ~1909 — 5 household members
| Surname | Gray |
| 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, Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | Tele Op. |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 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 Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Gray (~0.92 confidence) and father James Gray (~0.92 confidence) and father James Gray (~0.92 confidence) and mother Catherine Gray (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Gray
b. ~1882
Source father
● Household
· direct · ~0.92
Father
James Gray
b. ~1870
Source father
● Household
· direct · ~0.92
Father
James Gray
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Catherine Gray
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Gray
Daughter · 1940 · age 31 · b. ~1909 · New York
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Sibling
Michael Gray
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Gray
Sibling · 1940 · age 28
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-t0627-02576-00213)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas Mcnamara | 42 | Head | Patrolman | New York |
| 42 | Jane Mcnamara | 40 | Wife | — | New York |
| 43 | Thomas Mcnamara | 11 | Son | — | New York |
| 44 | Charles Mcnamara | 10 | Son | — | New York |
| 45 | Mary Ford | 56 | Head | — | New York |
| 46 | Anna Ford | 31 | Daughter | Performer | New York |
| 47 | John Ford | 24 | Son | Apprentice | New York |
| 48 | Marie Ford | 23 | Wife | — | New York |
| 49 | Albert Halal | 69 | Head | Retired | Germany |
| 50 | Mary Halal | 67 | Wife | — | New York |
| 51 | Anthony Halal | 39 | Son | — | New York |
| 52 | Robert Halal | 36 | Son | Yard Clerk | New York |
| 53 | Hugh Lynch | 36 | Head | Patrolman | New York |
| 54 | Elizabeth Lynch | 32 | Wife | — | New York |
| 55 | Hugh Lynch | 14 | Son | — | New York |
| 56 | John Lynch | 12 | Son | — | New York |
| 57 | William Lynch | 5 | Son | — | New York |
| 58 | Madeline Lynch | 4 | Daughter | — | New York |
| 59 | Ann Lynch | 2 | Daughter | — | New York |
| 60 | Anthony Carty | 65 | Head | Bottler | New York |
| 61 | Anna Carty | 63 | Wife | — | New York |
| 62 | Hugh Mckenna | 35 | Head | Custodian | New York State |
| 63 | Ellen Mckenna | 30 | Wife | — | Irish Free State |
| 64 | Patricia Mckenna | 9 | Daughter | — | New York |
| 65 | Robert Mckenna | 7 | Son | — | New York |
| 66 | Edward Mckenna | 4 | Son | — | New York |
| 67 | John Gray | 58 | Head | Machinist | New York |
| 68 | Catherine Gray | 58 | Wife | — | England |
| 69 | Mary Gray THIS PERSON | 31 | Daughter | Tele Op. | New York |
| 70 | Frances Gray | 28 | Daughter | Cashier | New York |
| 71 | Michael Gray | 25 | Son | — | New York |
| 72 | Aileen Cox | 35 | Head | Clerk | New York |
| 73 | Kathleen Cox | 15 | Daughter | — | New York |
| 74 | Ellen Cox | 14 | Daughter | — | New York |
| 75 | Harry Larson | 50 | Head | Clerk | Sweden |
| 76 | Anna Larson | 50 | Wife | — | New York |
| 77 | Viola Larson | 25 | Daughter | Clerk | New York |
| 78 | Regina Larson | 23 | Daughter | Clerk | New York |
| 79 | Clifford Larson | 19 | Daughter | New Worker | New York |
| 80 | Harvey Larson | 27 | Head | Machinist | New York |
Related Census Records
Pedigree Summary
Mary + 2 siblings
Gen 1 · 4 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)