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John Decker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Luzerne-County, Pennsylvania
Our Model Tree links this John Decker across the 1930 and 1940 US Censuses in Luzerne-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 8-person household.
Age 23
b. ~1917
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Luzerne-County, Pennsylvania |
| Surname | Decker |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wilkes-Barre City |
| 1935 Residence (County) | Luzerne |
| Additional Details | |
| Occupation | Salesman |
| Industry | Father's business |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Salesman |
| Township / Ward | Wilkesbarre City |
| Est. Birth Year | ~1917 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| David Decker | Head | — | 45 | ~1895 |
| Marian Decker | Daughter | — | 21 | ~1919 |
| George Decker | Son | — | 20 | ~1920 |
| Joseph Decker | Son | — | 25 | ~1915 |
| Margaret Decker | Spouse | — | 43 | ~1897 |
| Alfred Decker | Son | — | 16 | ~1924 |
| John Decker | Son | — | 23 | ~1917 |
| David Decker | Son | — | 5 | ~1935 |
Census Appearances
1930
Luzerne, Pennsylvania
Son, age 13
Luzerne, Pennsylvania · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Syria |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Luzerne-County, Pennsylvania
Son, age 23
Luzerne-County, Pennsylvania · implied b. ~1917 — 8 household members
| Surname | Decker |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wilkes-Barre City |
| 1935 Residence (County) | Luzerne |
| Occupation | Salesman |
| Industry | Father's business |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 John Decker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Decker
Son · 1940 · age 23 · b. ~1917 · Pennsylvania
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Sibling
Marian Decker
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Decker
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Decker
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Decker
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Decker
Sibling · 1940 · age 20
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 — Luzerne-County, Pennsylvania
Open full size
1940 US Federal Census — Luzerne-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03563-00471)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence Hughes | 55 | Wife | — | South Wales |
| 2 | Eleanore Hughes | 32 | Daughter | Teacher | Pennsylvania |
| 3 | William Young | 5 | Grandson | — | Pennsylvania |
| 4 | David Decker | 45 | Head | Storekeeper | Pennsylvania |
| 5 | Margaret Decker | 43 | Wife | — | Pennsylvania |
| 6 | Joseph Decker | 25 | Son | Truck Driver | Pennsylvania |
| 7 | John Decker THIS PERSON | 23 | Son | Salesman | Pennsylvania |
| 8 | Marian Decker | 21 | Daughter | Saleslady | Pennsylvania |
| 9 | George Decker | 20 | Son | Salesman | Pennsylvania |
| 10 | Alfred Decker | 16 | Son | — | Pennsylvania |
| 11 | David Jr. Decker | 5 | Son | — | Pennsylvania |
| 12 | Namen Joseph | 41 | Head | Junk Dealer | Syria |
| 13 | Anna Joseph | 47 | Wife | — | Syria |
| 14 | Rose Joseph | 23 | Daughter | — | Pennsylvania |
| 15 | Joseph Saba | 42 | Boarder | Junk Dealer | Syria |
| 16 | George B. Decker | 52 | Head | Huckster | Syria |
| 17 | Louise Decker | 40 | Wife | — | Syria |
| 18 | Peter Decker | 17 | Son | — | Pennsylvania |
| 19 | Edmund Decker | 15 | Son | — | Pennsylvania |
| 20 | Albert Decker | 14 | Son | — | Pennsylvania |
| 21 | Raymond Decker | 11 | Son | — | Pennsylvania |
| 22 | Line Extra | None | — | — | — |
| 23 | William P. Jennings | 46 | Head | Laborer | Pennsylvania |
| 24 | Jane Jennings | 48 | Wife | — | Pennsylvania |
| 25 | Anna Jane Jennings | 12 | Daughter | — | Pennsylvania |
| 26 | Robert Jennings | 4 | Son | — | Pennsylvania |
| 27 | Abigail Ashman | 83 | Head | — | England |
| 28 | Stanley Ashman | 53 | Head | Carpenter | Pennsylvania |
| 29 | Martha Ashman | 43 | Wife | — | Pennsylvania |
| 30 | James Ashman | 12 | Son | — | Pennsylvania |
| 31 | Julia Golden | 74 | Head | — | Pennsylvania |
| 32 | Alene Smith | 58 | Sister | Beautician | Pennsylvania |
| 33 | John Smith | 25 | Nephew | Steel Worker | Pennsylvania |
| 34 | Alice Smith | 21 | Niece | Beautician | Pennsylvania |
| 35 | Hugh H. Jones | 59 | Head | Storekeeper | Wales |
| 36 | Elizabeth Jones | 60 | Wife | — | Pennsylvania |
| 37 | Esther Jones | 29 | Daughter | Teacher | Pennsylvania |
| 38 | Emma Neumann | 65 | Head | Seaman | New York |
| 39 | Emma Neumann | 56 | Wife | — | Germany |
| 40 | Helen Neumann | 29 | Daughter | Waitress | New York |
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)