JD
John Decker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Columbia-County, New York
Our Model Tree links this John Decker across the 1920, 1930 and 1940 US Censuses in Columbia-County, New York (XGBoost, ~Confirmed), with identified parents Evans & Maggie — first a head (b.~1900), then head of a 8-person household.
Age 40
b. ~1900
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Columbia-County, New York |
| Surname | Decker |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Ancram |
| 1935 Residence (County) | Columbia |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 72 |
| Income (1939) | 152 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Laborer |
| Township / Ward | Ancram |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Decker | Head | — | 40 | ~1900 |
| Benjamin Westfall | Other | — | 25 | ~1915 |
| Willard Westfall | Other | — | 21 | ~1919 |
| Oliver Westfall | Other | — | 18 | ~1922 |
| Nellie Westfall | Other | — | 27 | ~1913 |
| Marjorie Decker | Daughter | — | 9 | ~1931 |
| Peter Zarintyzarintz | Other | — | 27 | ~1913 |
| Grace Decker | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Columbia, New …
Son, age 20
Columbia, New York · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Columbia, New …
Head, age 30
Columbia, New York · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Decker |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 26 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Farmer |
| Industry | Gen'l Farming |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Columbia-County, New …
Head, age 40
Columbia-County, New York · implied b. ~1900 — 8 household members
| Surname | Decker |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Ancram |
| 1935 Residence (County) | Columbia |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 72 |
| Income (1939) | 152 |
| Highest Grade | 8 |
| 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 John Decker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Evans Decker (~0.92 confidence) and mother Maggie Decker (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Evans Decker
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Maggie Decker
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Decker
Head · 1940 · age 40 · b. ~1900 · 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 — Columbia-County, New York
Open full size
1940 US Federal Census — Columbia-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02518-00025)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carrie Miller | 65 | Head | — | New York |
| 42 | George Miller | 45 | Son | Laborer | New York |
| 43 | Jacob Miller | 42 | Head | Laborer | New York |
| 44 | Jennie Miller | 50 | Wife | — | New York |
| 45 | Jacob Jr Miller | 12 | Son | — | New York |
| 46 | Janet Miller | 10 | Daughter | — | New York |
| 47 | Mary Cade | 40 | Head | — | New York |
| 48 | Ethel Cade | 14 | Daughter | — | New York |
| 49 | Almer Cade | 7 | Son | — | New York |
| 50 | Charles Kilmer | 55 | Father | — | New York |
| 51 | Katie Kilmer | 85 | Mother | — | New York |
| 52 | Abraham Johnson | 33 | Head | Laborer | Virginia |
| 53 | Dorothy Johnson | 21 | Wife | — | New Jersey |
| 54 | Richard Johnson | 3 | Son | — | New York |
| 55 | Ronald Johnson | 1 | Son | — | New York |
| 56 | William Douglas | 49 | Head | Laborer | Virginia |
| 57 | Rosa Douglas | 40 | Wife | — | Virginia |
| 58 | John Anspach | 61 | Head | Laborer | New York |
| 59 | Caroline Anspach | 45 | Wife | — | New York |
| 60 | Hattie Bohler | 34 | Head | — | New York |
| 61 | Peter Bohler | 40 | Husband | Baker | New York |
| 62 | Alexander Bohler | 15 | Son | — | New York |
| 63 | Peter Jr. Bohler | 12 | Son | — | New York |
| 64 | Dorothy Bohler | 10 | Daughter | — | New York |
| 65 | Walter Shook | 49 | Head | Laborer | New York |
| 66 | Henry Shook | 71 | Cousin | Laborer | New York |
| 67 | Ira Shook | 70 | Brother | Laborer | New York |
| 68 | Clifford Gorman | 35 | Lodger | Laborer | New York |
| 69 | Peter Fox | 55 | Lodger | Laborer | New York |
| 70 | Lee Shook | 20 | Son | Laborer | New York |
| 71 | Clayton Shook | 18 | Son | Laborer | New York |
| 72 | Roberta Shook | 14 | Daughter | — | New York |
| 73 | John Decker THIS PERSON | 40 | Head | Laborer | New York |
| 74 | Grace Decker | 50 | Wife | — | New York |
| 75 | Peter Zarinty|Zarintz | 27 | Lodger | Truck Driver | New York |
| 76 | Benjamin Westfall | 25 | Lodger | Laborer | New York |
| 77 | Willard Westfall | 21 | Lodger | Laborer | New York |
| 78 | Oliver Westfall | 18 | Lodger | Laborer | New York |
| 79 | Nellie Westfall | 27 | Lodger | — | New York |
| 80 | Marjorie Decker | 9 | Daughter | — | New York |
Pedigree Summary
John
Gen 1 · 2 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)