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William Decker — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Passaic, New Jersey
Our Model Tree links this William Decker across the 1930 and 1940 US Censuses in Passaic, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 8-person household.
Age 57
b. ~1873
Male
Head
Born: Holland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Passaic, New Jersey |
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Holland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 23 |
| Father's Birthplace | Holland |
| Mother's Birthplace | Holland |
| Additional Details | |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Dutch |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Netherlands |
| Birthplace (normalized) | holland |
| Occupation | Baker |
| Township / Ward | Part Of Hawthorne Boro |
| Est. Birth Year | ~1873 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Decker | Head | — | 57 | ~1873 |
| William Decker | Son | — | 17 | ~1913 |
| Winifred Decker | Daughter | — | 22 | ~1908 |
| Tunis Decker | Son | — | 14 | ~1916 |
| Jacob Decker | Son | — | 18 | ~1912 |
| Hilda Decker | Spouse | — | 54 | ~1876 |
| Richard Decker | Son | — | 23 | ~1907 |
| Frances Decker | Daughter | — | 20 | ~1910 |
Census Appearances
1930
Passaic, New …
Head, age 57
Passaic, New Jersey · implied b. ~1873 — 8 household members
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Holland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 23 |
| Father's Birthplace | Holland |
| Mother's Birthplace | Holland |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Dutch |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Netherlands |
| Birthplace (normalized) | holland |
1940
Passaic-County, New …
Head, age 65
Passaic-County, New Jersey · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dekker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Holland |
| 1935 Residence (City) | Clifton City |
| 1935 Residence (County) | Passaic |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Decker
Head · 1930 · age 57 · b. ~1873 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Passaic, New Jersey
Open full size
1930 US Federal Census — Passaic, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1377:0097)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Floyd Lambo | 29 | Head | Dyer | Italy |
| 2 | Frances Lambo | 23 | Wife | None | New Jersey |
| 3 | Minnie Lambo | 3 | Daughter | None | New Jersey |
| 4 | Alberta Lambo | 1 | Daughter | None | New Jersey |
| 5 | Harry F Davis | 41 | Head | Lithograph Operator | Kansas |
| 6 | Annie E Davis | 33 | Wife | None | India |
| 7 | Donald S Davis | 11 | Son | None | New Jersey |
| 8 | Elsie B Davis | 9 | Daughter | None | New Jersey |
| 9 | Robert W Davis | 8 | Son | None | New York |
| 10 | Lillian B Davis | 6 | Daughter | None | New York |
| 11 | William H Davis | 3 | Son | None | Pennsylvania |
| 12 | Florence Myers | 39 | Sister-in-law | Chauffeur | England |
| 13 | George L Petus | 55 | Head | Engineer | New York |
| 14 | Minnie P Petus | 35 | Wife | None | New Jersey |
| 15 | Elaine Petus | 8 | Daughter | None | New Jersey |
| 16 | Frank Schaefer | 70 | Head | Operator | Germany |
| 17 | Bertha Schaefer | 69 | Wife | None | Germany |
| 18 | Frank Duffy | 64 | Head | Tin Smith | Irish Free State |
| 19 | Delia Duffy | 52 | Wife | None | Irish Free State |
| 20 | Margaret M Duffy | 30 | Daughter | Enterer | New York |
| 21 | Willis Duffy | 28 | Daughter | Weaver | New York |
| 22 | Frank Duffy | 22 | Son | Chauffeur | New Jersey |
| 23 | James Duffy | 19 | Son | Clerk | New Jersey |
| 24 | Charles Duffy | 15 | Son | None | New Jersey |
| 25 | Pearson Duffy | 14 | Son | None | New Jersey |
| 26 | Joseph Duffy | 11 | Son | None | New Jersey |
| 27 | Eugene Duffy | 8 | Son | None | New Jersey |
| 28 | Mary E Duffy | 6 | Daughter | None | New Jersey |
| 29 | William Decker THIS PERSON | 57 | Head | Baker | Holland |
| 30 | Hilda Decker | 54 | Wife | None | Holland |
| 31 | Richard Decker | 23 | Son | Clerk | New Jersey |
| 32 | Winifred Decker | 22 | Daughter | Bookkeeper | New Jersey |
| 33 | Frances Decker | 20 | Daughter | Saleslady | New Jersey |
| 34 | Jacob Decker | 18 | Son | Board Boy | New Jersey |
| 35 | William Decker | 17 | Son | Clerk | New Jersey |
| 36 | Tunis Decker | 14 | Son | None | New Jersey |
| 37 | — | None | — | — | — |
| 38 | — | None | — | — | — |
| 39 | — | None | — | — | — |
| 40 | — | None | — | — | — |
| 41 | — | None | — | — | — |
| 42 | — | None | — | — | — |
| 43 | — | None | — | — | — |
| 44 | — | None | — | — | — |
| 45 | — | None | — | — | — |
| 46 | — | None | — | — | — |
| 47 | — | None | — | — | — |
| 48 | — | None | — | — | — |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)