JK
John Knox — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this John Knox across the 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 7-person household.
Age 27
b. ~1913
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | Knox |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | New Brunswick |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | driver |
| Industry | coal company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Driver |
| Township / Ward | New Brunswick |
| Est. Birth Year | ~1913 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Knox | Spouse | — | 66 | ~1874 |
| John Merritt | Son | — | 32 | ~1908 |
| Bayard Merritt | Son | — | 25 | ~1915 |
| Melanie Merritt | Daughter | — | 18 | ~1922 |
| John Knox | Son | — | 27 | ~1913 |
| Henrietta Knox | Daughter | — | 23 | ~1917 |
| John Knox | Head | — | 66 | ~1874 |
Census Appearances
1930
Middlesex, New …
Son, age 17
Middlesex, New Jersey · implied b. ~1913 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Presser |
| Industry | Clothing factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Son, age 27
Middlesex-County, New Jersey · implied b. ~1913 — 7 household members
| Surname | Knox |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | New Brunswick |
| 1935 Residence (County) | Middlesex |
| Occupation | driver |
| Industry | coal company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H 4 |
| 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 Knox across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Knox
Son · 1940 · age 27 · b. ~1913 · New Jersey
★ You are viewing this record
Sibling
Melanie Merritt
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Merritt
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bayard Merritt
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henrietta Knox
Sibling · 1940 · age 23
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-t0627-02359-00841)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Neuburger | 16 | Grandson | — | New Jersey |
| 42 | Robert Bell | 34 | Head | Handy Man | New Jersey |
| 43 | Lucy Bell | 65 | Mother | — | New Jersey |
| 44 | Ella Farrell | 18 | Cousin | — | New Jersey |
| 45 | Virginia Bell | 25 | Sister | — | New Jersey |
| 46 | John D. Knox | 66 | Head | — | New Jersey |
| 47 | Elizabeth Knox | 66 | Wife | — | New Jersey |
| 48 | John Knox THIS PERSON | 27 | Son | Driver | New Jersey |
| 49 | Henrietta Knox | 23 | Daughter | Operator | New Jersey |
| 50 | John Merritt | 32 | Son | Driver | New Jersey |
| 51 | Bayard Merritt | 25 | Son | Printer | New Jersey |
| 52 | Melanie Merritt | 18 | Daughter | Operator | New Jersey |
| 53 | Terhune Jansen | 57 | Head | Machinist | New Jersey |
| 54 | Charlotte Jansen | 54 | Wife | — | New Jersey |
| 55 | Muriel Jansen | 23 | Daughter | Typist | New Jersey |
| 56 | Elsie Jansen | 15 | Daughter | — | New Jersey |
| 57 | Martin Reichel | 57 | Head | Operator | Germany |
| 58 | Marie Reichel | 46 | Wife | — | Rumania |
| 59 | Frank Hewitt | 31 | Son-in-law | Teacher | New Jersey |
| 60 | Mary K. Hewitt | 29 | Daughter | — | New Jersey |
| 61 | George Roster | 34 | Head | Painter | New Jersey |
| 62 | Ruth Roster | 24 | Wife | — | New Jersey |
| 63 | David Snow | 54 | Head | Truckman | Virginia |
| 64 | Mary Snow | 53 | Wife | — | North Carolina |
| 65 | Lucille Taylor | 27 | Niece | — | North Carolina |
| 66 | Samuel Taylor | 28 | Nephew | Laborer | Virginia |
| 67 | Gaylord Taylor | 1 | Son | — | Virginia |
| 68 | Richard Brown | 11 | Nephew | — | New Jersey |
| 69 | Morris Brown | 8 | Nephew | — | New Jersey |
| 70 | Edward Sevain | 44 | Head | Laborer | Georgia |
| 71 | Tinnie Sevain | 40 | Wife | — | Georgia |
| 72 | Elijah Sevain | 24 | Son | Laborer | Georgia |
| 73 | Verna Sevain | 19 | Daughter | Maid | Georgia |
| 74 | Sarah Sevain | 15 | Daughter | — | New Jersey |
| 75 | Miles Wilson | 58 | Head | Laborer | Georgia |
| 76 | Ivory Wilson | 50 | Wife | — | Georgia |
| 77 | Julia Zachary | 30 | Daughter | Maid | Georgia |
| 78 | James Zachary | 32 | Son-in-law | Laborer | North Carolina |
| 79 | Charles Koch | 74 | Head | Keeper | Germany |
| 80 | Barbara Koch | 69 | Wife | — | 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)