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Mary Grady — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Grady across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1903), then head of a 7-person household.
Age 37
b. ~1903
Female
Spouse
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Grady |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | 0 |
| Township / Ward | Brooklyn |
| Est. Birth Year | ~1903 |
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 |
|---|---|---|---|---|
| Patricia Grady | Daughter | — | 8 | ~1932 |
| Arthur Grady | Son | — | 13 | ~1927 |
| Mary Grady | Spouse | — | 37 | ~1903 |
| Arthur Grady | Son | — | 9 | ~1931 |
| Anne Grady | Daughter | — | 11 | ~1929 |
| Dorothea Grady | Daughter | — | 15 | ~1925 |
| Arthur Grady | Head | — | 37 | ~1903 |
Census Appearances
1930
Kings, New …
Daughter, age 26
Kings, New York · implied b. ~1904 — 49 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grady |
| Given Name | Margaret E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stenographer |
| Industry | Stocks & Bonds |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Spouse, age 37
Kings-County, New York · implied b. ~1903 — 7 household members
| Surname | Grady |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| 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 Grady across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Grady
Spouse · 1940 · age 37 · b. ~1903 · New York
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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-t0627-02564-00332)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Matilda Kiernan | 29 | Daughter | Clerk | New York |
| 2 | Frank Christmann | 66 | Head | Iron Worker | New York |
| 3 | Marie Christmann | 44 | Daughter | Cleaner | New York |
| 4 | Catherine Christmann | 36 | Daughter | Telephone Operat. | New York |
| 5 | Leendert Baker | 44 | Head | Elevator Operator | Holland |
| 6 | Tanna Baker | 57 | Wife | 0 | Holland |
| 7 | Christiana Lieber | 61 | Head | 0 | New York |
| 8 | Mathilda Ingram | 86 | Mother | 0 | New York |
| 9 | Louis Wibbenmeyer | 43 | Head | Chauffeur | New York |
| 10 | Elizabeth Wibbenmeyer | 50 | Wife | 0 | Pennsylvania |
| 11 | Eugene Wibbenmeyer | 19 | Son | Junior Clerk | New York |
| 12 | Pauline Wibbenmeyer | 17 | Daughter | 0 | New York |
| 13 | Charles Kogler | 52 | Head | Magnet Winder | New York |
| 14 | Edith Kogler | 47 | Wife | 0 | New York |
| 15 | Peter Kogler | 22 | Son | Clerk | New York |
| 16 | Martha Kogler | 17 | Daughter | Packer | New York |
| 17 | Edith Kogler | 15 | Daughter | 0 | New York |
| 18 | Edith Boucher | 78 | Head | 0 | England |
| 19 | Arthur Grady | 37 | Head | Clerk | New York |
| 20 | Mary Grady THIS PERSON | 37 | Wife | 0 | New York |
| 21 | Dorothea Grady | 15 | Daughter | 0 | New York |
| 22 | Arthur Grady | 13 | Son | — | New York |
| 23 | Anne Grady | 11 | Daughter | — | New York |
| 24 | Arthur Jr. Grady | 9 | Son | — | New York |
| 25 | Patricia Grady | 8 | Daughter | — | New York |
| 26 | Frank Young | 28 | Head | Laborer | New York |
| 27 | Dorothy Young | 29 | Wife | 0 | New York |
| 28 | Frank Jr. Young | 10 | Son | — | New York |
| 29 | Nina Young | 8 | Daughter | — | New York |
| 30 | Anna Young | 5 | Daughter | — | New York |
| 31 | Harold Harvey | 40 | Head | Ink Grinder | New York |
| 32 | Jane Harvey | 38 | Wife | 0 | Scotland |
| 33 | Caroline Harvey | 12 | Daughter | 0 | New York |
| 34 | Harold Jr. Harvey | 14 | Son | 0 | New York |
| 35 | Charles Guarino | 44 | Head | Laborer | New York |
| 36 | Margaret Guarino | 38 | Wife | 0 | Massachusetts |
| 37 | Frances Guarino | 19 | Daughter | Junior Clerk | Massachusetts |
| 38 | Catherine Guarino | 16 | Daughter | New Worker | Connecticut |
| 39 | Carl Guarino | 14 | Son | 0 | Massachusetts |
| 40 | John Guarino | 14 | Son | 0 | Massachusetts |
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)