JK
John Knight — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this John Knight across the 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Knight |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | TRENTON CITY |
| 1935 Residence (County) | MERCER |
| Additional Details | |
| Highest Grade | Hs 5 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1926 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ruby Knight | Daughter | — | 12 | ~1928 |
| Louise Knight | Daughter | — | 8 | ~1932 |
| Vera Knight | Daughter | — | 18 | ~1922 |
| Pearl Knight | Daughter | — | 10 | ~1930 |
| Jerry Knight | Head | — | 51 | ~1889 |
| Preston Knight | Son | — | 16 | ~1924 |
| Ernest Knight | Son | — | 21 | ~1919 |
| Terries Knight | Son | — | 6 | ~1934 |
| John Knight | Son | — | 14 | ~1926 |
| Lillie Knight | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Mercer, New …
Son, age 5
Mercer, New Jersey · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Son, age 14
Mercer-County, New Jersey · implied b. ~1926 — 10 household members
| Surname | Knight |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | TRENTON CITY |
| 1935 Residence (County) | MERCER |
| Highest Grade | Hs 5 |
| 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 Knight across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Knight
Son · 1940 · age 14 · b. ~1926 · New Jersey
★ You are viewing this record
Sibling
Preston Knight
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Knight
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vera Knight
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Knight
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Terries Knight
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Knight
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Knight
Sibling · 1940 · age 12
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 — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02435-00808)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Thomplin | 18 | Neice | Laborer | Georgia |
| 42 | James Taylor | 36 | Lodger | Laborer | Carolina |
| 43 | Henry Dennard | 23 | Head | Laborer | Georgia |
| 44 | Katie Dennard | 18 | Wife | — | Georgia |
| 45 | Henrietta Dennard | 0 | Daughter | — | New Jersey |
| 46 | William Kee | 60 | Head | Laborer | Virginia |
| 47 | Catherine Kee | 42 | Wife | — | New York |
| 48 | Sarah Self | 39 | Head | — | Georgia |
| 49 | Bernice Self | 13 | Daughter | — | New Jersey |
| 50 | John Self | 11 | Son | — | New Jersey |
| 51 | Henry Self | 10 | Son | — | New Jersey |
| 52 | Martha Self | 8 | Daughter | — | New Jersey |
| 53 | Vivian Self | 6 | Daughter | — | New Jersey |
| 54 | Charles Hatcher | 33 | Head | Laborer | Virginia |
| 55 | Grace Hatcher | 23 | Wife | Servant | Virginia |
| 56 | Pearl Bronner | 47 | Head | — | Georgia |
| 57 | Ollie Flemming | 26 | Daughter | Seamstress | Georgia |
| 58 | James Flemming | 10 | Grandson | — | New Jersey |
| 59 | Peter Flemming | 4 | Grandson | — | New Jersey |
| 60 | Jerry Knight | 51 | Head | Truck Driver | Georgia |
| 61 | Lillie Knight | 40 | Wife | — | Georgia |
| 62 | Ernest Knight | 21 | Son | New Worker | New Jersey |
| 63 | Vera Knight | 18 | Daughter | Servant | New Jersey |
| 64 | Preston Knight | 16 | Son | New Worker | New Jersey |
| 65 | John Knight THIS PERSON | 14 | Son | — | New Jersey |
| 66 | Ruby Knight | 12 | Daughter | — | New Jersey |
| 67 | Pearl Knight | 10 | Daughter | — | New Jersey |
| 68 | Louise Knight | 8 | Daughter | — | New Jersey |
| 69 | Terries Knight | 6 | Son | — | New Jersey |
| 70 | Mabel Brooks | 26 | Head | Maid | Carolina |
| 71 | Napoleon Brooks | 23 | Brother | Presser | Carolina |
| 72 | Attie Brooks | 28 | Sister | Servant | Carolina |
| 73 | Crockett Dorsey | 49 | Head | Laborer | Georgia |
| 74 | Melvie Dorsey | 36 | Wife | — | Georgia |
| 75 | Rufus Dorsey | 20 | Son | Truck Driver | Georgia |
| 76 | Jesse Dorsey | 17 | Son | Laborer | Georgia |
| 77 | Mildred Dorsey | 18 | Daughter | Servant | Georgia |
| 78 | Calvin Dorsey | 14 | Son | — | New Jersey |
| 79 | Eugene Dorsey | 10 | Son | — | New Jersey |
| 80 | George Yurcho | 22 | Head | Bartender | 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)