JS
John Stark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this John Stark across the 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | Stark |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Sayreville |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Sayreville |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| Matilda Stark | Daughter | — | 16 | ~1924 |
| Theresa Stark | Daughter | — | 9 | ~1931 |
| Wanda Stark | Daughter | — | 18 | ~1922 |
| Elsie Stark | Daughter | — | 13 | ~1927 |
| John Stark | Head | — | 47 | ~1893 |
| John Stark | Son | — | 13 | ~1927 |
| Edward Stark | Son | — | 2 | ~1938 |
| Anna Stark | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Hudson, New …
Son, age 3
Hudson, New Jersey · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Stark |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Mother's Birthplace | Irish Free State |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Son, age 13
Middlesex-County, New Jersey · implied b. ~1927 — 8 household members
| Surname | Stark |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Sayreville |
| 1935 Residence (County) | Middlesex |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Stark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Stark
Son · 1940 · age 13 · b. ~1927 · New Jersey
★ You are viewing this record
Sibling
Edward Stark
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Stark
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wanda Stark
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Stark
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matilda Stark
Sibling · 1940 · age 16
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 — Middlesex-County, New Jersey
Open full size
1940 US Federal Census — Middlesex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02363-00086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Stah|Stab Stab | None | Elsie | — | Hs 2 |
| 42 | Charkowski Stab | None | Johanna | — | No 7 |
| 43 | Peter Rhatican | 40 | Head | Janitor | New Jersey |
| 44 | Sophie Rhatican | 35 | Wife | — | New Jersey |
| 45 | Bernard Rhatican | 15 | Son | New Worker | New Jersey |
| 46 | Lloyd Rhatican | 14 | Son | New Worker | New Jersey |
| 47 | Cyril Rhatican | 10 | Son | — | New Jersey |
| 48 | Robert Rhatican | 5 | Son | — | New Jersey |
| 49 | John Kachnowski | 47 | Head | Laborer | Poland |
| 50 | Genevieve Kachnowski | 24 | Daughter | Cigar Maker | New Jersey |
| 51 | Helen Kachnowski | 21 | Daughter | Laborer | New Jersey |
| 52 | John Kachnowski | 18 | Son | Cigar Maker | New Jersey |
| 53 | Dorothy Kachnowski | 14 | Daughter | New Worker | New Jersey |
| 54 | Rose Kachnowski | 12 | Daughter | — | New Jersey |
| 55 | Neal Chevalier | 34 | Head | Policeman | New Jersey |
| 56 | Marie Chevalier | 31 | Wife | Stenographer | New Jersey |
| 57 | Young Mary Chevalier | 4 | Daughter | — | New Jersey |
| 58 | Joseph Malachowski | 50 | Head | Janitor | Poland |
| 59 | Sophie Malachowski | 42 | Wife | — | Poland |
| 60 | Edward Malachowski | 23 | Son | Chemist | New Jersey |
| 61 | Vincent Malachowski | 21 | Son | Laborer | New Jersey |
| 62 | John Stark | 47 | Head | Road Worker | Poland |
| 63 | Anna Stark | 39 | Wife | — | New Jersey |
| 64 | Wanda Stark | 18 | Daughter | Embroidery Trimmer | New Jersey |
| 65 | Matilda Stark | 16 | Daughter | Cigar Maker | New Jersey |
| 66 | Elsie Stark | 13 | Daughter | — | New Jersey |
| 67 | John Stark THIS PERSON | 13 | Son | — | New Jersey |
| 68 | Theresa Stark | 9 | Daughter | — | New Jersey |
| 69 | Edward Stark | 2 | Son | — | New Jersey |
| 70 | Victoria Wojcik | 48 | Head | — | Poland |
| 71 | John Wojcik | 25 | Son | Waiter | New Jersey |
| 72 | Walter Wojcik | 21 | Son | Truck Driver | New Jersey |
| 73 | Bert Worthley | 35 | Head | Precision Grinder | New Jersey |
| 74 | Gertrude Worthley | 40 | Wife | Clerk (Dept.) | New Jersey |
| 75 | Lila Worthley | 31 | Daughter | — | New Jersey |
| 76 | George Worthley | 32 | Son | Carpenter | New Jersey |
| 77 | John Mandahar|Mandakas | 42 | Head | Truck Driver | New Jersey |
| 78 | Florence Mandahar|Mandakas | 37 | Wife | — | New Jersey |
| 79 | William King | 39 | Head | Auto Body Repair | New Jersey |
| 80 | Lena King | 68 | Mother | — | Germany |
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)