TR
Thomas Robertson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fairfield-County, South Carolina
Our Model Tree links this Thomas Robertson across the 1930 and 1940 US Censuses in Fairfield-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fairfield-County, South Carolina |
| Surname | Robertson |
| Given Name | Thomas C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Township 9 |
| 1935 Residence (County) | Fairfield |
| Additional Details | |
| Occupation | Day laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 60 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Laborer |
| Township / Ward | Township 9 |
| Est. Birth Year | ~1922 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Hattie Robertson | Daughter | — | 10 | ~1930 |
| Lucy Robertson | Daughter | — | 13 | ~1927 |
| Thomas Robertson | Son | — | 18 | ~1922 |
| Sarah Robertson | Daughter | — | 16 | ~1924 |
| Dorothy Robertson | Daughter | — | 11 | ~1929 |
| Arthur Robertson | Head | — | 50 | ~1890 |
| Arthur Robertson | Son | — | 15 | ~1925 |
| Lucy Robertson | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Fairfield, South …
Son, age 6
Fairfield, South Carolina · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | Tom |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Fairfield-County, South …
Son, age 18
Fairfield-County, South Carolina · implied b. ~1922 — 8 household members
| Surname | Robertson |
| Given Name | Thomas C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Township 9 |
| 1935 Residence (County) | Fairfield |
| Occupation | Day laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 60 |
| Highest Grade | No 6 |
| 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 Thomas Robertson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Robertson
Son · 1940 · age 18 · b. ~1922 · South Carolina
★ You are viewing this record
Sibling
Dorothy Robertson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Robertson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hattie Robertson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Robertson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Robertson
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 — 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-t0627-03807-00312)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Prof D Robinson | 32 | Head | Farmer | South Carolina |
| 2 | Alberta Robinson | 31 | Wife | Unpaid Laborer | South Carolina |
| 3 | Lila Mae Robinson | 9 | Daughter | — | South Carolina |
| 4 | Ray Robinson | 6 | Son | — | South Carolina |
| 5 | Walker Robinson | 29 | Head | Laborer | South Carolina |
| 6 | Lillie Mae Robinson | 28 | Wife | — | South Carolina |
| 7 | Johnnie Robinson | 6 | Son | — | South Carolina |
| 8 | Laura Robinson | 71 | Head | — | South Carolina |
| 9 | Annie Belle Davis | 33 | Daughter | Housekeeper | South Carolina |
| 10 | James Robinson | 8 | Grandson | — | South Carolina |
| 11 | Mozelle Davis | 5 | Granddaughter | — | South Carolina |
| 12 | Erline Coleman | 25 | Granddaughter | Housekeeper | South Carolina |
| 13 | William Cook | 63 | Head | Farmer | South Carolina |
| 14 | Katie Cook | 59 | Wife | Laborer | South Carolina |
| 15 | Charlie Cook | 24 | Son | Laborer | South Carolina |
| 16 | Alberta Cook | 23 | Daughter-in-law | — | South Carolina |
| 17 | Mattie Lou Cook | 3 | Granddaughter | — | South Carolina |
| 18 | Claude Edward Cook | 1 | Grandson | — | South Carolina |
| 19 | Willie James Hiles | 18 | Grandson | New Worker | South Carolina |
| 20 | Freddie Hiles | 17 | Grandson | Laborer | Michigan |
| 21 | Nancy Lee Hiles | 15 | Grandson | — | South Carolina |
| 22 | Ulysses Gailles | 22 | Head | Laborer | South Carolina |
| 23 | Annie Mae Gailles | 25 | Wife | — | South Carolina |
| 24 | Eugene Gailles | 1 | Son | — | South Carolina |
| 25 | John Gailles | 0 | Son | — | South Carolina |
| 26 | Richard C Caldwell | 61 | Head | Farmer | South Carolina |
| 27 | Mary Caldwell | 57 | Wife | Unpaid Laborer | South Carolina |
| 28 | David Caldwell | 18 | Son | Day Laborer | South Carolina |
| 29 | Elizabeth Caldwell | 14 | Daughter | — | South Carolina |
| 30 | Medora Caldwell | 12 | Daughter | — | South Carolina |
| 31 | Hermione Sherard | 22 | Lodger | Grammar School Teacher | South Carolina |
| 32 | Beulah Haltiwanger | 21 | Lodger | Primary Teacher | South Carolina |
| 33 | Arthur Robertson | 50 | Head | Laborer | South Carolina |
| 34 | Lucy Robertson | 45 | Wife | — | South Carolina |
| 35 | Thomas C Robertson THIS PERSON | 18 | Son | Day Laborer | South Carolina |
| 36 | Sarah Robertson | 16 | Daughter | Maid | South Carolina |
| 37 | Arthur Robertson | 15 | Son | — | South Carolina |
| 38 | Lucy Bell Robertson | 13 | Daughter | — | South Carolina |
| 39 | Dorothy Robertson | 11 | Daughter | — | South Carolina |
| 40 | Hattie Robertson | 10 | Daughter | — | South Carolina |
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)