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Mary Blake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Blake across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-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 | Blake |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Blake | Daughter | — | 14 | ~1926 |
| Anna Blake | Spouse | — | 40 | ~1900 |
| Joseph Blake | Head | — | 45 | ~1895 |
| Joseph Blake | Son | — | 12 | ~1928 |
| Beatrice Blake | Daughter | — | 10 | ~1930 |
| Lillian Blake | Daughter | — | 10 | ~1930 |
| Gerard Blake | Son | — | 7 | ~1933 |
| Frances Blake | Son | — | 7 | ~1933 |
Census Appearances
1930
Kings, New …
Daughter, age 4
Kings, New York · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | Brooklyn |
| Occupation | none |
| Can Read/Write | Yes |
| 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 — 8 household members
| Surname | Blake |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| 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 Blake across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Blake
Daughter · 1940 · age 14 · b. ~1926 · New York
★ You are viewing this record
Sibling
Frances Blake
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Blake
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Blake
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerard Blake
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Blake
Sibling · 1940 · age 10
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-t0627-02572-00317)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert Hansen | 47 | Head | Carpenter | Norway |
| 2 | Nellie Hansen | 48 | Wife | — | Norway |
| 3 | Adele Hansen | 19 | Daughter | Stenographer | New York |
| 4 | Alf Hansen | 16 | Son | — | New York |
| 5 | Thelma Hansen | 13 | Daughter | — | New York |
| 6 | Theresa Andersen | 55 | Boarder | Houseworker | Norway |
| 7 | Frank Maesecker | 72 | Head | Foreman | Germany |
| 8 | Metilda Maesecker | 74 | Wife | — | Germany |
| 9 | Herbert Anton | 43 | Son-in-law | Dairy Worker | New York |
| 10 | Matilda Anton | 40 | Daughter | — | New York |
| 11 | James Anton | 20 | Nephew | Repairman | New York |
| 12 | Mary Anton | 10 | Niece | — | New York |
| 13 | Grace Annette | 45 | — | — | New York |
| 14 | Joseph Blake | 45 | Head | Junior Assessor | New York |
| 15 | Anna Blake | 40 | Wife | — | New York |
| 16 | Mary Blake THIS PERSON | 14 | Daughter | — | New York |
| 17 | Joseph Blake | 12 | Son | — | New York |
| 18 | Beatrice Blake | 10 | Daughter | — | New York |
| 19 | Lillian Blake | 10 | Daughter | — | New York |
| 20 | Gerard Blake | 7 | Son | — | New York |
| 21 | Frances Blake | 7 | Son | — | New York |
| 22 | Maria Steehel | Stechel | 40 | Head | — | New York |
| 23 | Francis Steehel | Stechel | 45 | Brother | — | New York |
| 24 | Maria Ulsamer | 74 | Aunt | — | New York |
| 25 | Anthony Papaas | 38 | Head | Hairdresser | Greece |
| 26 | Catherine Papaas | 29 | Wife | — | Greece |
| 27 | Evangeline Papaas | 2 | Daughter | — | New York |
| 28 | — | None | — | — | — |
| 29 | Morris Hansen | 39 | Head | Main Machinist | Denmark |
| 30 | Elsie Hansen | 40 | Wife | — | Sweden |
| 31 | Elinor Hansen | 8 | Daughter | — | New York |
| 32 | Buster Nedin | 59 | Head | Painter | Sweden |
| 33 | Elizabeth Nedin | 57 | Wife | — | Sweden |
| 34 | Helen Martha Nedin | 30 | Daughter | — | New York |
| 35 | Beatrice Nedin | 11 | Daughter | — | New York |
| 36 | Alex Nedin | 32 | Head | — | Sweden |
| 37 | Beatrice Nedin | 28 | Wife | — | New York |
| 38 | Warren Nedin | 4 | Son | — | New York |
| 39 | Oswald Hansen | 43 | Head | Dock Builder | Norway |
| 40 | Agnes Hansen | 29 | Wife | — | Norway |
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)