JC
John Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Greenville-County, South Carolina
Our Model Tree links this John Cox across the 1920, 1930 and 1940 US Censuses in Greenville-County, South Carolina (XGBoost, ~Confirmed), with identified parents W & J — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Greenville-County, South Carolina |
| Surname | Cox |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Greenville Township |
| 1935 Residence (County) | Greenville |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | W.P.A |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 338 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Truck Driver |
| Township / Ward | Greenville Township |
| 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 |
|---|---|---|---|---|
| Mary Cox | Daughter | — | 15 | ~1925 |
| Clara Cox | Daughter | — | 17 | ~1923 |
| Mamie Cox | Head | — | 53 | ~1887 |
| John Cox | Son | — | 23 | ~1917 |
Census Appearances
1920
Greenville, South …
Son, age 4
Greenville, South Carolina · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | J. B. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Greenville, South …
Son, age 14
Greenville, South Carolina · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Greenville-County, South …
Son, age 23
Greenville-County, South Carolina · implied b. ~1917 — 4 household members
| Surname | Cox |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Greenville Township |
| 1935 Residence (County) | Greenville |
| Occupation | Truck Driver |
| Industry | W.P.A |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 338 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father W Cox (~0.92 confidence) and father J Cox (~0.92 confidence) and mother Freddie Cox (~0.92 confidence) and mother Mamie Cox (~0.92 confidence) and mother Eula Cox (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
W Cox
b. ~1878
Source father
● Household
· direct · ~0.92
Father
J Cox
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Freddie Cox
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Mamie Cox
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Eula Cox
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cox
Son · 1940 · age 23 · b. ~1917 · South Carolina
★ You are viewing this record
Sibling
Clara Cox
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cox
Sibling · 1940 · age 15
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 — Greenville-County, South Carolina
Open full size
1940 US Federal Census — Greenville-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03813-00589)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Readona Jennings | 3 | Daughter | — | South Carolina |
| 2 | Leroy Jennings | 22 | Head | Weaver | South Carolina |
| 3 | Ruby Jennings | 20 | Wife | — | South Carolina |
| 4 | Marion Jennings | 1 | Daughter | — | South Carolina |
| 5 | Leroy Jr Jennings | 1 | Son | — | South Carolina |
| 6 | Mamie Cox | 53 | Head | — | South Carolina |
| 7 | John E Cox THIS PERSON | 23 | Son | Truck Driver | South Carolina |
| 8 | Clara Cox | 17 | Daughter | Spinner | South Carolina |
| 9 | Mary Cox | 15 | Daughter | — | South Carolina |
| 10 | John R Rochester | 53 | Head | Run Elevator | South Carolina |
| 11 | Mary Rochester | 51 | Wife | — | South Carolina |
| 12 | Harold Rochester | 21 | Son | Doffer | South Carolina |
| 13 | Carston Rosa Pearl Rochester | 26 | Daughter | Spinner | South Carolina |
| 14 | Ben H Rochester | 50 | Brother | Over All | South Carolina |
| 15 | Carlton Rochester | 17 | Son | — | South Carolina |
| 16 | Doris Rochester | 13 | Daughter | — | South Carolina |
| 17 | John R Jr Rochester | 9 | Son | — | South Carolina |
| 18 | Barbara Ann Rochester | 2 | Daughter | — | South Carolina |
| 19 | Ida Mcmahon | 62 | Sister | — | South Carolina |
| 20 | William R Mackey | 57 | Head | Cloth Room | South Carolina |
| 21 | Jessie Mackey | 41 | Wife | Spooler | South Carolina |
| 22 | Ruby N Mackey | 16 | Daughter | — | South Carolina |
| 23 | Charlie Gromes | 27 | Head | Run Cards | North Carolina |
| 24 | Juanita Gromes | 24 | Wife | Fill Batteries | South Carolina |
| 25 | Carl Hilley | 24 | Head | Frame Repairer | South Carolina |
| 26 | Hazel Hilley | 21 | Wife | Cloth Inspector | South Carolina |
| 27 | Florence Griffin | 42 | Head | Spooler | South Carolina |
| 28 | Clara Lee Griffin | 23 | Daughter | Nurse | South Carolina |
| 29 | Florence A Griffin | 17 | Daughter | — | South Carolina |
| 30 | Billie Griffin | 15 | Son | — | South Carolina |
| 31 | Leroy Hollingworth | 31 | Head | Run Draw | South Carolina |
| 32 | Gladys Hollingworth | 24 | Wife | — | South Carolina |
| 33 | Jesse Burton | 42 | Head | Oiler | Georgia |
| 34 | Hannie Burton | 40 | Wife | Spinner | South Carolina |
| 35 | Jessie Mae Burton | 5 | Daughter | — | South Carolina |
| 36 | Robert D Wham | 27 | Head | Run Section | South Carolina |
| 37 | Lucie Wham | 24 | Wife | — | Georgia |
| 38 | Gerald Wham | 22 | Son | Doff Twister | South Carolina |
| 39 | Katherine Wham | 4 | Daughter | — | South Carolina |
| 40 | Robert D Jr Wham | 2 | Son | — | South Carolina |
Pedigree Summary
John + 2 siblings
Gen 1 · 5 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)