JB
John Boyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Somerset-County, New Jersey
Our Model Tree links this John Boyer across the 1930 and 1940 US Censuses in Somerset-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 12-person household.
Age 19
b. ~1921
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Somerset-County, New Jersey |
| Surname | Boyer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Bridgewater |
| 1935 Residence (County) | Somerset |
| Additional Details | |
| Occupation | Core Maker |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Core Maker |
| Township / Ward | Bridgewater |
| Est. Birth Year | ~1921 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ella Boyer | Spouse | — | 43 | ~1897 |
| George Boyer | Son | — | 10 | ~1930 |
| George Boyer | Head | — | 55 | ~1885 |
| Katherine Boyer | Daughter | — | 14 | ~1926 |
| Helen Boyer | Daughter | — | 11 | ~1929 |
| Shirley Boyer | Daughter | — | 9 | ~1931 |
| Fred Boyer | Son | — | 23 | ~1917 |
| Donald Boyer | Son | — | 5 | ~1935 |
| Richard Boyer | Son | — | 6 | ~1934 |
| Theodore Boyer | Son | — | 18 | ~1922 |
| Joan Boyer | Daughter | — | 3 | ~1937 |
| John Boyer | Son | — | 19 | ~1921 |
Census Appearances
1930
Somerset, New …
Son, age 9
Somerset, New Jersey · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Somerset-County, New …
Son, age 19
Somerset-County, New Jersey · implied b. ~1921 — 12 household members
| Surname | Boyer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Bridgewater |
| 1935 Residence (County) | Somerset |
| Occupation | Core Maker |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Boyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Boyer
Son · 1940 · age 19 · b. ~1921 · New Jersey
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Sibling
Joan Boyer
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Boyer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Boyer
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Boyer
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Boyer
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Boyer
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Boyer
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Boyer
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Boyer
Sibling · 1940 · age 6
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 — Somerset-County, New Jersey
Open full size
1940 US Federal Census — Somerset-County, New Jersey
Page Contents
17 people indexed on this census page (nara:1940:m-t0627-02382-00637)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Draper Engress | 30 | Head | Stenographer | New Jersey |
| 2 | Mary Engress | 27 | Wife | — | New Jersey |
| 3 | Donna Engress | 4 | Daughter | — | New Jersey |
| 4 | Alvar Dornfield | 28 | Head | Pipe Fitter | New Jersey |
| 5 | Dorothy Dornfield | 25 | Wife | — | New Jersey |
| 6 | George Boyer | 55 | Head | Laborer | New Jersey |
| 7 | Ella Boyer | 43 | Wife | — | New Jersey |
| 8 | Fred Boyer | 23 | Son | Laborer | New Jersey |
| 9 | John Boyer THIS PERSON | 19 | Son | Core Maker | New Jersey |
| 10 | Theodore Boyer | 18 | Son | U | New Jersey |
| 11 | Katherine Boyer | 14 | Daughter | — | New Jersey |
| 12 | Helen Boyer | 11 | Daughter | — | New Jersey |
| 13 | George Boyer | 10 | Son | — | New Jersey |
| 14 | Shirley Boyer | 9 | Daughter | — | New Jersey |
| 15 | Donald Boyer | 5 | Son | — | New Jersey |
| 16 | Richard Boyer | 6 | Son | — | New Jersey |
| 17 | Joan Boyer | 3 | Daughter | — | 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)