WD
William Decker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this William Decker across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents George & Thomas — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn borough |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Fisherman |
| Class of Worker | NP |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Fisherman |
| Township / Ward | Brooklyn Borough |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Decker | Head | — | 56 | ~1884 |
| Dagmar Decker | Spouse | — | 56 | ~1884 |
| William Decker | Son | — | 22 | ~1918 |
Census Appearances
1920
Kings, New …
Son, age 1
Kings, New York · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duckers |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Industry | Housework |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 12
Kings, New York · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 22
Kings-County, New York · implied b. ~1918 — 3 household members
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn borough |
| 1935 Residence (County) | Kings |
| Occupation | Fisherman |
| Class of Worker | NP |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| 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 William Decker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Duckers (~0.92 confidence) and father Thomas Decker (~0.92 confidence) and father William Decker (~0.92 confidence) and mother Clara Decker (~0.92 confidence) and mother Dagmar Decker (~0.92 confidence) and mother Mary Duckers (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Duckers
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Thomas Decker
b. ~1896
Source father
● Household
· direct · ~0.92
Father
William Decker
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Clara Decker
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Dagmar Decker
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Mary Duckers
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Decker
Son · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
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-t0627-02596-00906)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louise Purzo | 32 | Wife | — | Italy |
| 42 | Domenick Purzo | 3 | Son | — | New York |
| 43 | Louis, Jr Purzo | 1 | Son | — | New York |
| 44 | James Vastola | 44 | Head | Candy Store | New York |
| 45 | Jennie Vastola | 38 | Wife | — | New York |
| 46 | Jennie Vastola | 13 | Daughter | — | New York |
| 47 | James Vastola | 8 | Son | — | New York |
| 48 | Jennie Vastola | 86 | Head | — | Italy |
| 49 | Rose Vastola | 40 | Daughter | — | New York |
| 50 | Thomas Vastola | 55 | Son | Manager | Italy |
| 51 | Samuel Atlas | 62 | Head | Hotel Manager | Hungary |
| 52 | Gussie Atlas | 50 | Wife | Hotel Manager | Hungary |
| 53 | Robert J. Noble | 46 | Head | Clerk | New York |
| 54 | Johanna Burke | 81 | Head | — | New York |
| 55 | Bessie Kurtz | 58 | Head | — | Russia |
| 56 | Herman Hempe | 38 | Head | Barber | Illinois |
| 57 | Fanny Englisher | 28 | Head | — | Poland |
| 58 | Martin Emerling | 55 | Head | Vaudeville Actor | Germany |
| 59 | Amelia Emerling | 45 | Wife | — | Germany |
| 60 | Albert Emerling | 18 | Son | — | New York |
| 61 | Walter Emerling | 13 | Son | — | New York |
| 62 | John Boreman | 35 | Head | Salesman | New York |
| 63 | Margaret Boreman | 35 | Wife | — | New York |
| 64 | Armand Gaunther | 45 | Head | — | Canada-French |
| 65 | Minnie Gaunther | 47 | Wife | — | Newfoundland |
| 66 | Edith Seilken | 66 | Head | — | Russia |
| 67 | Abraham Blau | 60 | Head | Musician | Austria |
| 68 | Lawrence Doyle | 44 | Head | Steam Fitter | New York |
| 69 | John Peporato | 34 | Head | Painter | New Jersey |
| 70 | Marie Peporato | 32 | Wife | — | New Jersey |
| 71 | Nicholas Peporato | 13 | Son | — | New Jersey |
| 72 | Mary Baum | 55 | Head | — | New York |
| 73 | Agnes Whitford | 53 | Head | — | New York |
| 74 | Harry Chodra | 32 | Head | Electrician | New York |
| 75 | William Decker | 56 | Head | Fisherman | New Jersey |
| 76 | Dagmar Decker | 56 | Wife | — | Norway |
| 77 | William Decker THIS PERSON | 22 | Son | Fisherman | New York |
| 78 | George Gizzo | 33 | Head | Sweeper | New York |
| 79 | Margie Martino | 31 | Wife | — | Pennsylvania |
| 80 | Betty Felde | 38 | Head | Clerk | New York |
Pedigree Summary
William
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)