JF
John Fox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this John Fox across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents John & Charles — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Fox |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Maplewood |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | asst operator |
| Industry | sub-station station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | H1 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Asst Operator |
| Township / Ward | Maplewood |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Martha Fox | Head | — | 48 | ~1892 |
| Catherine Kolbenschlag | Other | — | 72 | ~1868 |
| John Fox | Son | — | 23 | ~1917 |
| Sanford Fox | Son | — | 21 | ~1919 |
Census Appearances
1920
Essex, New …
Son, age 3
Essex, New Jersey · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fox |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 13
Essex, New Jersey · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fox |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Essex-County, New …
Son, age 23
Essex-County, New Jersey · implied b. ~1917 — 4 household members
| Surname | Fox |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Maplewood |
| 1935 Residence (County) | Essex |
| Occupation | asst operator |
| Industry | sub-station station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | H1 |
| 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 Fox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Fox (~0.92 confidence) and father Charles Fox (~0.92 confidence) and mother Martha Fox (~0.92 confidence) and mother Martha Fox (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Fox
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Charles Fox
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Martha Fox
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Martha Fox
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Fox
Son · 1940 · age 23 · b. ~1917 · New Jersey
★ You are viewing this record
Sibling
Sanford Fox
Sibling · 1940 · age 21
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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02336-00632)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Philip Schantz | 42 | head | Gardener | Germany |
| 42 | Katherine Schantz | 43 | wife | — | Germany |
| 44 | Mahlon Cotton | 26 | head | Salesman | Penn |
| 45 | Olga O. Cotton | 24 | wife | — | Penn |
| 46 | Mahlon J. Cotton | 4 | son | — | Penn |
| 47 | Margaret Cotton | 3 | daughter | — | Penn |
| 48 | Carol Cotton | 2 | daughter | — | Penn |
| 49 | Robert Cotton | 0 | son | — | Penn |
| 50 | Jack Daneluke | 50 | head | Bartender Owner | Russia |
| 51 | Julia Daneluke | 38 | wife | — | Austria |
| 52 | Nettie Daneluke | 13 | daughter | — | New Jersey |
| 53 | Vera Daneluke | 12 | daughter | — | New Jersey |
| 54 | Ethel Daneluke | 5 | daughter | — | New Jersey |
| 55 | Martha Bigos | 65 | mother-in-law | — | Austria |
| 56 | Frank Ratus | 39 | head | Window Cleaner | Poland |
| 57 | Mary A. Ratus | 29 | wife | Operator | Poland |
| 58 | Jerry Ratus | 5 | son | — | New Jersey |
| 59 | Harold Schott | 44 | head | Plumbing | New Jersey |
| 60 | Gertrude Schott | 42 | wife | — | New Jersey |
| 61 | Jack Schott | 20 | son | Stock Clerk | New Jersey |
| 62 | Ethel Schott | 17 | daughter | — | New Jersey |
| 63 | Benedict Helmstaetter | 67 | father-in-law | Polisher | New Jersey |
| 64 | Louis Schweitzer | 60 | head | Painter | New Jersey |
| 65 | Anna A. Schweitzer | 54 | wife | — | New Jersey |
| 66 | James Schweitzer | 30 | son | Butcher | New Jersey |
| 67 | Anna Schweitzer | 26 | daughter-in-law | — | New Jersey |
| 68 | Phyllis Schweitzer | 3 | daughter | — | New Jersey |
| 69 | Richard Schweitzer | 1 | grandson | — | New Jersey |
| 70 | Martha Fox | 48 | head | — | New Jersey |
| 71 | John Fox THIS PERSON | 23 | son | Asst Operator | New Jersey |
| 72 | Sanford Fox | 21 | son | Clerk | New Jersey |
| 73 | Catherine Kolbenschlag | 72 | mother | — | New Jersey |
| 74 | Charles Schnibbe | 56 | head | Clerk | New Jersey |
| 75 | Christine Schnibbe | 55 | wife | — | New Jersey |
| 76 | Charlotte Schnibbe | 23 | daughter | Secretary | New Jersey |
| 77 | Edna Schnibbe | 18 | daughter | — | New Jersey |
| 78 | August Zimmermann | 54 | head | Foreman | Germany |
| 79 | Marie Zimmermann | 47 | wife | — | Germany |
| 80 | Eleanor Zimmermann | 21 | daughter | Clerk | New Jersey |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)