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Mary Blake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Blake across the 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 9-person household.
Age 52
b. ~1888
Female
Head
Born: North Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Blake |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | North Ireland |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Naturalization Status | First papers filed |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | north ireland |
| Township / Ward | Newark City |
| Est. Birth Year | ~1888 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Arthur Porter | Other | — | 61 | ~1879 |
| Agnes Blake | Daughter | — | 26 | ~1914 |
| Rose Blake | Daughter | — | 24 | ~1916 |
| Margaret Blake | Daughter | — | 22 | ~1918 |
| Elna Blake | Daughter | — | 16 | ~1924 |
| John Blake | Son | — | 29 | ~1911 |
| Mary Blake | Head | — | 52 | ~1888 |
| John Meenan | Other | — | 38 | ~1902 |
| Frank Blake | Son | — | 18 | ~1922 |
Census Appearances
1930
New York, …
Other, age 42
New York, New York · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | North Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 20 |
| Father's Birthplace | North Ireland |
| Mother's Birthplace | North Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | north ireland |
1940
Essex-County, New …
Head, age 52
Essex-County, New Jersey · implied b. ~1888 — 9 household members
| Surname | Blake |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | North Ireland |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Naturalization Status | First papers filed |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | north ireland |
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.
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This person
Anchor record
Mary Blake
Head · 1940 · age 52 · b. ~1888 · New Jersey
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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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02415-00215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stephen Apostolikas | 50 | Head | Cook | Greece |
| 2 | Florence Apostolikas | 40 | Wife | — | Greece |
| 3 | Thelma Apostolikas | 23 | Daughter | Stenographer | New Jersey |
| 4 | Bessie Apostolikas | 22 | Daughter | Stenographer | New Jersey |
| 5 | James Apostolikas | 18 | Son | — | Penna |
| 6 | Nicholas Apostolikas | 16 | Son | — | New Jersey |
| 7 | Stephen Jr Apostolikas | 14 | Son | — | New Jersey |
| 8 | Melmen Johnson | 48 | Aunt | — | Greece |
| 10 | Harry Salzer | 62 | Head | Laborer | Russia |
| 11 | Sarah Salzer | 60 | Wife | — | New Jersey |
| 12 | Herman Salzer | 36 | Son | Musician | New Jersey |
| 13 | Irene Salzer | 26 | Daughter | — | New Jersey |
| 14 | Edward Heller | 31 | Head | Bus Driver | New York |
| 15 | Ida Heller | 23 | Wife | — | New Jersey |
| 16 | William Heller | 3 | Son | — | New Jersey |
| 17 | Lena Zimmerman | 82 | Head | — | New Jersey |
| 18 | William Zimmerman | 61 | Son | — | New Jersey |
| 19 | Charles Zimmerman | 57 | Son | Laborer | New Jersey |
| 20 | Henrietta Zimmerman | 53 | Daughter | — | New Jersey |
| 21 | John Gianna | 70 | Head | — | Greece |
| 22 | Angela Gianna | 45 | Wife | — | Greece |
| 23 | Betty Gianna | 21 | Daughter | Salesgirl | New York |
| 24 | George H Gianna | 20 | Son | — | New York |
| 25 | James Gianna | 16 | Son | — | New Jersey |
| 26 | Robert E King | 25 | Head | Superintendent | New Jersey |
| 27 | George T King | 55 | Father | — | Kansas |
| 28 | George Packlaris | 63 | Head | — | Greece |
| 29 | Anna Packlaris | 50 | Wife | — | Greece |
| 30 | Pete Packlaris | 26 | Son | Sign Maker | New Jersey |
| 31 | Nick Packlaris | 17 | Son | — | New Jersey |
| 32 | Mary Blake THIS PERSON | 52 | Head | — | North Ireland |
| 33 | John J. Blake | 29 | Son | Clerk | New Jersey |
| 34 | Rose Blake | 24 | Daughter | — | New Jersey |
| 35 | Margaret Blake | 22 | Daughter | — | New Jersey |
| 36 | Frank Blake | 18 | Son | — | New Jersey |
| 37 | Elna Blake | 16 | Daughter | — | New Jersey |
| 38 | Agnes Mary Blake | 26 | Daughter | — | New Jersey |
| 39 | Arthur B. Porter | 61 | Lodger | — | New Jersey |
| 40 | John Meenan | 38 | Lodger | Gardener | North Ireland |
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)