MD
Mary Decker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Mary Decker across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 6-person household.
Age 14
b. ~1926
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Decker |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Weehawken City |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Weehawken City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Hattie Decker | Daughter | — | 15 | ~1925 |
| Elizabeth Decker | Daughter | — | 15 | ~1925 |
| Mary Decker | Daughter | — | 14 | ~1926 |
| Stephen Decker | Head | — | 42 | ~1898 |
| John Decker | Son | — | 19 | ~1921 |
| Ida Decker | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Hudson, New …
Daughter, age 5
Hudson, New Jersey · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Deckers |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Holland |
| Mother's Birthplace | Holland |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 14
Hudson-County, New Jersey · implied b. ~1926 — 6 household members
| Surname | Decker |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Weehawken City |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 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 Decker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Decker
Daughter · 1940 · age 14 · b. ~1926 · New Jersey
★ You are viewing this record
Sibling
John Decker
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hattie Decker
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Decker
Sibling · 1940 · age 15
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02349-00450)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Angelina Mancuso | 24 | wife | — | New Jersey |
| 2 | Anthony Mancuso | 1 | son | — | New Jersey |
| 3 | Joseph Guider | 62 | head | — | New Jersey |
| 4 | Agnes (X) Guider | 53 | sister | Water Meter-Read | New Jersey |
| 5 | Elizabeth Fallon | 65 | sister | — | New Jersey |
| 6 | Margaret Fallon | 33 | neice | — | New Jersey |
| 7 | Elizabeth R Fallon | 26 | neice | Wholesale Butter & Eggs | New Jersey |
| 8 | Alexander Crothers | 77 | brother-in-law | Railroad | Canada |
| 9 | Margaret Crothers | 73 | sister | — | New Jersey |
| 10 | John Mcinerney | 39 | head | Paver Drill-Operator | New Jersey |
| 11 | Catherine Mcinerney | 34 | wife | — | Poland |
| 12 | Mary Mcinerney | 21 | daughter | — | New Jersey |
| 13 | John Mcinerney | 15 | son | — | New Jersey |
| 14 | James Mcinerney | 12 | son | — | New Jersey |
| 15 | Alfred Sr (X) Falco | 37 | head | Cement-Finisher | New Jersey |
| 16 | Lillian Falco | 37 | wife | — | Italy |
| 17 | Frank Falco | 20 | son | — | New Jersey |
| 18 | Peter Falco | 17 | son | — | New Jersey |
| 19 | Marie Falco | 15 | daughter | — | New Jersey |
| 20 | Alfred Jr. Falco | 11 | son | — | New Jersey |
| 21 | William Lilienthal | 40 | head | Sprayer | New Jersey |
| 22 | Harold Lilienthal | 19 | son | Loads Furniture | New Jersey |
| 23 | Alvera Lilienthal | 13 | daughter | — | New Jersey |
| 24 | Dolores Lilienthal | 10 | daughter | — | New Jersey |
| 25 | Laura (X) Lilienthal | 70 | mother | — | New Jersey |
| 26 | Sebastian Pullano | 36 | head | Candy-Maker | Italy |
| 27 | Mary (X) Pullano | 31 | wife | — | Italy |
| 28 | Rose Pullano | 12 | daughter | — | New Jersey |
| 29 | Clement Pullano | 10 | son | — | New Jersey |
| 30 | Antoinette Pullano | 5 | daughter | — | New Jersey |
| 31 | Stephen Decker | 42 | head | Chauffeur | New Jersey |
| 32 | Ida (X) Decker | 38 | wife | — | New Jersey |
| 33 | Hattie Decker | 15 | daughter | Wholesale Hosiery Co | New Jersey |
| 34 | John Decker | 19 | son | — | New Jersey |
| 35 | Elizabeth Decker | 15 | daughter | — | New Jersey |
| 36 | Mary Decker THIS PERSON | 14 | daughter | — | New Jersey |
| 37 | Karl Krueger | 44 | head | Proprietor | Germany |
| 38 | Johanna (X) Krueger | 41 | wife | — | Germany |
| 39 | Edward Dembowski | 35 | head | Fuel & Oil Bus. | Poland |
| 40 | Mary Dembowski | 35 | wife | — | 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)