RJ
Robert Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Fairfield-County, South Carolina
Our Model Tree links this Robert Jackson across the 1920, 1930 and 1940 US Censuses in Fairfield-County, South Carolina (XGBoost, ~Confirmed), with identified parents Isaac & I — first a head (b.~1920), then head of a 3-person household.
Age 20
b. ~1920
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fairfield-County, South Carolina |
| Surname | Jackson |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Rockton |
| 1935 Residence (County) | Fairfield |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 186 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Laborer |
| Township / Ward | Rockton |
| Est. Birth Year | ~1920 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Bertha Jackson | Daughter | — | 1 | ~1939 |
| Robert Jackson | Head | — | 20 | ~1920 |
| Minnie Jackson | Spouse | — | 19 | ~1921 |
Census Appearances
1920
Fairfield, South …
Son, age 3
Fairfield, South Carolina · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Fairfield, South …
Son, age 11
Fairfield, South Carolina · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Fairfield-County, South …
Head, age 20
Fairfield-County, South Carolina · implied b. ~1920 — 3 household members
| Surname | Jackson |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Rockton |
| 1935 Residence (County) | Fairfield |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 186 |
| Highest Grade | No 5 |
| 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 Robert Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Isaac Jackson (~0.92 confidence) and father I Jackson (~0.92 confidence) and mother Coline Jackson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Isaac Jackson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
I Jackson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Coline Jackson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Jackson
Head · 1940 · age 20 · b. ~1920 · South Carolina
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Fairfield-County, South Carolina
Open full size
1940 US Federal Census — Fairfield-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03807-00276)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daniel John | 7 | Son | — | South Carolina |
| 2 | Alice Mae John | 5 | Daughter | — | South Carolina |
| 3 | Mildred John | 3 | Daughter | — | South Carolina |
| 4 | Reese Edwards | 27 | Head | Handyman | South Carolina |
| 5 | Annie Bell Edwards | 27 | Wife | — | South Carolina |
| 6 | Reese Jr Edwards | 4 | Son | — | South Carolina |
| 7 | John Flower | 61 | Head | Farmer | South Carolina |
| 8 | Mattie Flower | 49 | Wife | — | South Carolina |
| 9 | Eddie Flower | 17 | Son | Laborer | South Carolina |
| 10 | Frances Flower | 14 | Daughter | — | South Carolina |
| 11 | Walter Flower | 9 | Son | — | South Carolina |
| 12 | Frank Flower | 6 | Son | — | South Carolina |
| 13 | Mattie Flower | 3 | Daughter | — | South Carolina |
| 14 | Willie Flower | 26 | Head | Farmer | South Carolina |
| 15 | Willie Mae Flower | 20 | Wife | — | South Carolina |
| 16 | Isaac Flower | 5 | Son | — | South Carolina |
| 17 | Willie Jr Flower | 1 | Son | — | South Carolina |
| 18 | Mary Martin | 92 | Head | — | South Carolina |
| 19 | Argelle Moore | 25 | Daughter | — | South Carolina |
| 20 | Ollie Brown | 64 | Head | — | South Carolina |
| 21 | Robert Brown | 27 | Nephew | Stone Cutter | South Carolina |
| 22 | Mildred Brown | 22 | Wife | — | South Carolina |
| 23 | Arnett Copeland | 20 | Head | Laborer | South Carolina |
| 24 | Celestine Copeland | 18 | Wife | — | South Carolina |
| 25 | Essie Mae Copeland | 2 | Daughter | — | South Carolina |
| 26 | Robert Jackson THIS PERSON | 20 | Head | Laborer | South Carolina |
| 27 | Minnie Jackson | 19 | Wife | — | South Carolina |
| 28 | Bertha Lee Jackson | 1 | Daughter | — | South Carolina |
| 29 | Sam Davis | 58 | Head | Laborer | South Carolina |
| 30 | Pauline Davis | 34 | Wife | — | South Carolina |
| 31 | Eunice Davis | 13 | Daughter | — | South Carolina |
| 32 | Virginia Davis | 8 | Daughter | — | South Carolina |
| 33 | Ida Mae Davis | 6 | Daughter | — | South Carolina |
| 34 | Wagner Edwards | 51 | Head | Drill | South Carolina |
| 35 | Bertha Edwards | 42 | Wife | — | South Carolina |
| 36 | Jessie Edwards | 19 | Daughter | — | South Carolina |
| 37 | James Edwards | 18 | Son | Laborer | South Carolina |
| 38 | Hermond Edwards | 16 | Son | Laborer | South Carolina |
| 39 | Eugene Edwards | 14 | Son | — | South Carolina |
| 40 | Bessie Lee Edwards | 11 | Daughter | — | South Carolina |
Pedigree Summary
Robert
Gen 1 · 3 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)