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William Decker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Orleans-County, Louisiana
Our Model Tree links this William Decker across the 1930 and 1940 US Censuses in Orleans-County, Louisiana (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 8-person household.
Age 25
b. ~1915
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Orleans-County, Louisiana |
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans City |
| 1935 Residence (County) | Orleans |
| Additional Details | |
| Occupation | Porter |
| Industry | Market |
| Class of Worker | PW |
| Hours Worked | 63 |
| Income (1939) | 20 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Porter |
| Township / Ward | New Orleans City |
| Est. Birth Year | ~1915 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Irene Decker | Daughter | — | 8 | ~1932 |
| Ivel Decker | Daughter | — | 17 | ~1923 |
| Shirley Decker | Daughter | — | 13 | ~1927 |
| Gladys Decker | Son | — | 12 | ~1928 |
| Irene Decker | Spouse | — | 46 | ~1894 |
| William Decker | Head | — | 47 | ~1893 |
| Audrey Decker | Daughter | — | 18 | ~1922 |
| William Decker | Son | — | 25 | ~1915 |
Census Appearances
1930
Orleans, Louisiana
Son, age 14
Orleans, Louisiana · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | William E Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Texas |
| Mother's Birthplace | Louisiana |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Orleans-County, Louisiana
Son, age 25
Orleans-County, Louisiana · implied b. ~1915 — 8 household members
| Surname | Decker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans City |
| 1935 Residence (County) | Orleans |
| Occupation | Porter |
| Industry | Market |
| Class of Worker | PW |
| Hours Worked | 63 |
| Income (1939) | 20 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 25 · b. ~1915 · Louisiana
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Sibling
Shirley Decker
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ivel Decker
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Decker
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audrey Decker
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Decker
Sibling · 1940 · age 8
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 — Orleans-County, Louisiana
Open full size
1940 US Federal Census — Orleans-County, Louisiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01436-00521)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank Stevenson | 15 | Head | — | Louisiana |
| 42 | Mary Stevenson | 13 | Daughter | — | Louisiana |
| 43 | James Stevenson | 8 | Son | — | Louisiana |
| 44 | Alberta Stevenson | 3 | Daughter | — | Louisiana |
| 45 | Frank Taylor | 67 | Brother-in-law | — | Louisiana |
| 46 | Ella Rose Dixon | 4 | Granddaughter | — | Louisiana |
| 47 | David Palmer | 55 | Head | Minister | Louisiana |
| 48 | Rose Palmer | 42 | Wife | — | Arkansas |
| 49 | Fred Palmer | 19 | Son | — | Louisiana |
| 50 | Rayfield Palmer | 14 | Son | — | Louisiana |
| 51 | James Palmer | 13 | Son | — | Louisiana |
| 52 | James Sr. Verdun | 30 | Son-in-law | Laborer | Louisiana |
| 53 | Louisa Verdun | 25 | Daughter | — | Louisiana |
| 54 | James Jr. Verdun | 2 | Grandson | — | Louisiana |
| 56 | William Decker | 47 | Head | Ice Route | Texas |
| 57 | Irene Decker | 46 | Wife | — | Louisiana |
| 58 | William Decker THIS PERSON | 25 | Son | Porter | Louisiana |
| 59 | Audrey Decker | 18 | Daughter | — | Louisiana |
| 60 | Ivel Decker | 17 | Daughter | — | Louisiana |
| 61 | Shirley Decker | 13 | Daughter | — | Louisiana |
| 62 | Gladys Decker | 12 | Son | — | Louisiana |
| 63 | Irene Decker | 8 | Daughter | — | Louisiana |
| 64 | Rosalie Hamburger | 56 | Head | — | Louisiana |
| 65 | Jacob S. Hamburger | 28 | Son | — | Louisiana |
| 66 | John Andrews | 43 | Brother | — | Louisiana |
| 67 | Fredricka Grier | 59 | Sister | Music Teacher | Louisiana |
| 68 | Lucy Harvey | 63 | Head | — | Louisiana |
| 69 | John Harvey | 37 | Son | Ironworker Helper | Louisiana |
| 70 | Leonard Landry | 26 | Son-in-law | Truck Driver | Louisiana |
| 71 | Helen Landry | 24 | Daughter | — | Louisiana |
| 72 | Rita Fifty | 20 | Head | — | Louisiana |
| 73 | Anna Ruth Fifty | 5 | Daughter | — | Louisiana |
| 74 | Starlynne Fifty | 2 | Daughter | — | Louisiana |
| 75 | David G. Shumaker | 30 | Head | Truck Driver | Louisiana |
| 76 | Roberta Shumaker | 27 | Wife | — | Louisiana |
| 77 | Patricia A. Shumaker | 6 | Daughter | — | Louisiana |
| 78 | Arthur G. Finigan | 28 | Head | Painter | Louisiana |
| 79 | Mildred Finigan | 22 | Wife | — | Louisiana |
| 80 | Arthur G. Jr. Finigan | 3 | Son | — | Louisiana |
Related Census Records
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)