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William Decker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lehigh-County, Pennsylvania
Our Model Tree links this William Decker across the 1930 and 1940 US Censuses in Lehigh-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lehigh-County, Pennsylvania |
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Emmaus borough |
| 1935 Residence (County) | Lehigh |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Emmaus Borough |
| Est. Birth Year | ~1925 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Oliver Decker | Son | — | 11 | ~1929 |
| Mae Decker | Daughter | — | 17 | ~1923 |
| William Decker | Son | — | 15 | ~1925 |
| Barton Decker | Son | — | 9 | ~1931 |
| Everett Decker | Head | — | 40 | ~1900 |
| Eva Decker | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Lehigh, Pennsylvania
Son, age 5
Lehigh, Pennsylvania · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lehigh-County, Pennsylvania
Son, age 15
Lehigh-County, Pennsylvania · implied b. ~1925 — 6 household members
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Emmaus borough |
| 1935 Residence (County) | Lehigh |
| Highest Grade | No 8 |
| 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 William Decker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Decker
Son · 1940 · age 15 · b. ~1925 · Pennsylvania
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Sibling
Barton Decker
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oliver Decker
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mae Decker
Sibling · 1940 · age 17
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 — Lehigh-County, Pennsylvania
Open full size
1940 US Federal Census — Lehigh-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03546-00348)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis E. Grim | 58 | Head | Laborer | Pennsylvania |
| 2 | Mae Grim | 52 | Wife | — | Pennsylvania |
| 3 | Harold Christman | 28 | Nephew | Tool Designer | Pennsylvania |
| 4 | Ammon Bauman | 46 | Head | Weaver | Pennsylvania |
| 5 | Ella Bauman | 46 | Wife | — | Pennsylvania |
| 6 | Howard Schaffer | 43 | Head | Truck Driver | Pennsylvania |
| 7 | Emma Schaffer | 44 | Wife | — | Pennsylvania |
| 8 | Russel Herzog | 49 | Head | Engineer | Pennsylvania |
| 9 | Eva Herzog | 47 | Wife | — | Pennsylvania |
| 10 | Earl Herzog | 18 | Son | — | Pennsylvania |
| 11 | Wilmer A. Herzog | 15 | Son | — | Pennsylvania |
| 12 | Clayton Cook | 49 | Head | Porter | Pennsylvania |
| 13 | Helen Cook | 44 | Wife | — | Pennsylvania |
| 14 | Pauline Cook | 23 | Daughter | Health Teacher | Pennsylvania |
| 15 | Lewis Cook | 21 | Son | Clerk | Pennsylvania |
| 16 | Arthur Kuhns | 30 | Head | Spinning | Pennsylvania |
| 17 | Marie Kuhns | 28 | Wife | Machine Operator | Pennsylvania |
| 18 | Ronald Kuhns | 10 | Son | — | Pennsylvania |
| 19 | Mary Yotter | 72 | Head | — | Pennsylvania |
| 20 | Helen Albright | 48 | Daughter | Assistant Matron | Pennsylvania |
| 21 | Charles Albright | 18 | Grandson | Printer | Pennsylvania |
| 22 | Harold Albright | 17 | Grandson | — | Pennsylvania |
| 23 | Carol Albright | 15 | Granddaughter | — | Pennsylvania |
| 24 | Harvey Kehm | 59 | Head | Warper | Pennsylvania |
| 25 | Mabel Kehm | 57 | Wife | — | Pennsylvania |
| 26 | Emily Walbert | 70 | Head | — | Pennsylvania |
| 27 | Sallie Frick | 68 | Boarder | Housekeeper | Pennsylvania |
| 28 | James H. Ironheiser | 32 | Head | Delivery | Pennsylvania |
| 29 | Althea Ironheiser | 27 | Wife | Pressing | Pennsylvania |
| 30 | Everett Decker | 40 | Head | Mechanics Helper | Pennsylvania |
| 31 | Eva Decker | 35 | Wife | — | Pennsylvania |
| 32 | Mae Decker | 17 | Daughter | Maid | Pennsylvania |
| 33 | William Decker THIS PERSON | 15 | Son | — | Pennsylvania |
| 34 | Oliver Decker | 11 | Son | — | Pennsylvania |
| 35 | Barton Decker | 9 | Son | — | Pennsylvania |
| 36 | Herbert Miller | 44 | Head | Weaver | Pennsylvania |
| 37 | Elizabeth Miller | 39 | Wife | Machine Operator | Pennsylvania |
| 38 | William Miller | 15 | Son | — | Pennsylvania |
| 39 | Helena Shoemaker | 19 | Daughter | — | Pennsylvania |
| 40 | Stanley Shoemaker | 21 | Son in law | Truck Driver | Pennsylvania |
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)