MS
Mary Shea — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Shea across the 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Packer |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 444 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Packer |
| Township / Ward | Newark City |
| Est. Birth Year | ~1919 |
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 Shea | Daughter | — | 21 | ~1919 |
| Alfred Shea | Head | — | 52 | ~1888 |
| Alfred Shea | Son | — | 25 | ~1915 |
| Thomas Shea | Son | — | 22 | ~1918 |
| Patrick Shea | Son | — | 17 | ~1923 |
| Robert Shea | Son | — | 23 | ~1917 |
| Anna Shea | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Essex, New …
Daughter, age 10
Essex, New Jersey · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheu |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Daughter, age 21
Essex-County, New Jersey · implied b. ~1919 — 7 household members
| Surname | Shea |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Occupation | Packer |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 444 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Shea across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Shea
Daughter · 1940 · age 21 · b. ~1919 · New Jersey
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Sibling
Patrick Shea
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Shea
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Shea
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Shea
Sibling · 1940 · age 22
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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02422-00227)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Victor Motyka | 51 | Head | Gilder | Poland |
| 2 | Victoria Motyka | 52 | Wife | Housekeeper | Poland |
| 3 | Stella Motyka | 20 | Daughter | — | New Jersey |
| 4 | Jennie Motyka | 23 | Daughter | — | New Jersey |
| 5 | Alfred Shea | 52 | Head | Gilder | New Jersey |
| 6 | Anna Shea | 50 | Wife | Housekeeper | New Jersey |
| 7 | Alfred Shea | 25 | Son | Factory Worker | New Jersey |
| 8 | Robert Shea | 23 | Son | — | New Jersey |
| 9 | Thomas Shea | 22 | Son | Inspector | New Jersey |
| 10 | Mary Shea THIS PERSON | 21 | Daughter | Packer | New Jersey |
| 11 | Patrick Shea | 17 | Son | Plumber | New Jersey |
| 12 | Thomas Schreck | 47 | Head | Helper | New Jersey |
| 13 | Venetta Schreck | 42 | Wife | Housekeeper | New Jersey |
| 14 | Thomas Schreck | 21 | Son | — | New Jersey |
| 15 | Helen Schreck | 19 | Daughter | — | New Jersey |
| 16 | Anna Mae Schreck | 17 | Daughter | Housemaid | New Jersey |
| 17 | Birdsell Schreck | 15 | Son | — | New Jersey |
| 18 | Harriett Schreck | 10 | Daughter | — | New Jersey |
| 19 | Joseph Schreck | 8 | Son | — | New Jersey |
| 20 | Dorothy Schreck | 7 | Daughter | — | New Jersey |
| 21 | Peter Schreck | 7 | Son | — | New Jersey |
| 22 | Dolores Schreck | 4 | Daughter | — | New Jersey |
| 23 | Viola Kappler | 42 | Head | — | New Jersey |
| 24 | Francis Kappler | 14 | Daughter | — | New Jersey |
| 25 | Evelyn Palmer | 38 | Lodger | Stenographer | New Jersey |
| 26 | Joseph Kelly | 52 | Head | Brakeman | New Jersey |
| 27 | Jennie Kelly | 51 | Wife | Housewife | Scotland |
| 28 | John Kelly | 21 | Son | Driver | New Jersey |
| 29 | Charles Loren | 34 | Head | Operator | New Jersey |
| 30 | Violet Loren | 32 | Wife | Counter Girl | New York |
| 31 | Eleanor Loren | 12 | Daughter | — | New Jersey |
| 32 | Dorothy Loren | 11 | Daughter | — | New Jersey |
| 33 | Jeanette Loren | 9 | Daughter | — | New Jersey |
| 34 | Mary Maas | 50 | Head | Housecleaning | Hungary |
| 35 | Elizabeth Maas | 26 | Daughter | Clerk | New Jersey |
| 36 | Catherine Fanta | 55 | Head | Domestic | Poland |
| 37 | Joseph Sadouski | 40 | Head | Clerk | New Jersey |
| 38 | Rose Sadouski | 33 | Wife | — | Poland |
| 39 | Joseph Sadouski | 17 | Son | — | New Jersey |
| 40 | Dorothy Sadouski | 14 | Daughter | — | New Jersey |
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)