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William Decker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Passaic-County, New Jersey
Our Model Tree links this William Decker across the 1920, 1930 and 1940 US Censuses in Passaic-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Head
Born: Holland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Passaic-County, New Jersey |
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Holland |
| 1935 Residence (City) | Clifton |
| 1935 Residence (County) | Passaic |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Shipping Clerk |
| Industry | Wright Aero Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2039 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Netherlands |
| Birthplace (normalized) | holland |
| Occupation | Shipping Clerk |
| Township / Ward | Clifton |
| Est. Birth Year | ~1900 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Anna Decker | Daughter | — | 15 | ~1925 |
| Gertrude Decker | Spouse | — | 41 | ~1899 |
| William Decker | Head | — | 40 | ~1900 |
| Henry Decker | Son | — | 10 | ~1930 |
Census Appearances
1920
Passaic, New …
Head, age 19
Passaic, New Jersey · implied b. ~1901 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Holland |
| Year of Immigration | 1911 |
| Naturalization Status | Alien |
| Father's Birthplace | Holland |
| Mother's Birthplace | Holland |
| Occupation | Cutter |
| Industry | Oil Cloth Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Dutch |
| Home Owned/Rented | R |
| Birth Country | Netherlands |
| Birthplace (normalized) | holland |
1930
Passaic, New …
Head, age 30
Passaic, New Jersey · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Holland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 19 |
| Father's Birthplace | Holland |
| Mother's Birthplace | Holland |
| Occupation | Machinist |
| Industry | Aeroplane |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Dutch |
| Home Owned/Rented | R |
| Home Value / Rent | $32 |
| Veteran | No |
| Birth Country | Netherlands |
| Birthplace (normalized) | holland |
1940
Passaic-County, New …
Head, age 40
Passaic-County, New Jersey · implied b. ~1900 — 4 household members
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Holland |
| 1935 Residence (City) | Clifton |
| 1935 Residence (County) | Passaic |
| Naturalization Status | Naturalized |
| Occupation | Shipping Clerk |
| Industry | Wright Aero Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2039 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Netherlands |
| Birthplace (normalized) | holland |
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.
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This person
Anchor record
William Decker
Head · 1940 · age 40 · b. ~1900 · 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 — Passaic-County, New Jersey
Open full size
1940 US Federal Census — Passaic-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02376-00541)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bertha Huber | 60 | Head | Housewife | Austria |
| 42 | Fred Huber | 32 | Son | Bookkeeper | New Jersey |
| 43 | Ann Huber | 30 | Daughter | Operator | New Jersey |
| 44 | Theresa Huber | 27 | Daughter | Operator | New Jersey |
| 45 | Paul Huber | 24 | Son | Pressing | New Jersey |
| 46 | Josephine Huber | 21 | Daughter | Operator | New Jersey |
| 47 | Charles Huber | 15 | Son | Student | New Jersey |
| 48 | Roger Knight | 52 | Head | Carpenter | New Jersey |
| 49 | Mary Knight | 48 | Wife | Housewife | Holland |
| 50 | Cornelia Knight | 23 | Daughter | Teacher | New Jersey |
| 51 | Peter Knight | 21 | Son | Clerk | New Jersey |
| 52 | Alice Knight | 19 | Daughter | Housework | New Jersey |
| 53 | Roger Jr. Knight | 15 | Son | Student | New Jersey |
| 54 | Sarah Mae Knight | 8 | Daughter | — | New Jersey |
| 55 | Barbara Knight | 2 | Daughter | — | New Jersey |
| 56 | Peter B. Van Dorn | 45 | Head | Fireman | New Jersey |
| 57 | Maude Van Dorn | 42 | Wife | Housewife | New Jersey |
| 58 | J. Peter Van Dorn | 18 | Son | Student | New Jersey |
| 59 | Edward Van Dorn | 17 | Son | Student | New Jersey |
| 60 | James Van Dorn | 16 | Son | Student | New Jersey |
| 61 | Richard Van Dorn | 13 | Son | Student | New Jersey |
| 62 | Ira Van Dorn | 9 | Daughter | Student | New Jersey |
| 63 | John Draakensloot | 77 | Head | Retired | Holland |
| 64 | Jennie Draakensloot | 70 | Wife | Housewife | Holland |
| 65 | William Decker THIS PERSON | 40 | Head | Shipping Clerk | Holland |
| 66 | Gertrude Decker | 41 | Wife | Housewife | New Jersey |
| 67 | Anna Decker | 15 | Daughter | Student | New Jersey |
| 68 | Henry Decker | 10 | Son | Operator | New Jersey |
| 69 | Jacob Lynebrand | 60 | Head | Housewife | Holland |
| 70 | Matthew Lynebrand | 39 | Son | Watchman | New Jersey |
| 71 | Jacob Lynebrand | 24 | Son | Millhand | New Jersey |
| 72 | Anthony Lynebrand | 19 | Son | Millhand | New Jersey |
| 73 | Albert Zimmer | 30 | Head | Trucker | Holland |
| 74 | Jessie Zimmer | 27 | Wife | Housewife | New Jersey |
| 75 | Antonio Fina | 54 | Head | Laborer | Italy |
| 76 | Josephine Fina | 44 | Wife | Housewife | Italy |
| 77 | John Blain | 39 | Head | Millhand | New York |
| 78 | Elizabeth Blain | 40 | Wife | Housewife | New Jersey |
| 79 | Oppydyk Walloy | 35 | Boarder | Domestic | 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)