JT
James Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lancaster-County, South Carolina
Our Model Tree links this James Thompson across the 1920, 1930 and 1940 US Censuses in Lancaster-County, South Carolina (XGBoost, ~Confirmed), with identified parents Adam & Ben — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, South Carolina |
| Surname | Thompson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Gills Creek Township |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Machine repair shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | No 12 |
| 1935 Residence | Same house |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Truck Driver |
| Township / Ward | Gills Creek Township |
| Est. Birth Year | ~1916 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Sarah Thompson | Daughter | — | 25 | ~1915 |
| Victoria Thompson | Daughter | — | 22 | ~1918 |
| Adam Thompson | Head | — | 67 | ~1873 |
| James Thompson | Son | — | 24 | ~1916 |
| Lottie Thompson | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Lancaster, South …
Son, age 2
Lancaster, South Carolina · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| 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
Lancaster, South …
Son, age 11
Lancaster, South Carolina · implied b. ~1919 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | James |
| 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
Lancaster-County, South …
Son, age 24
Lancaster-County, South Carolina · implied b. ~1916 — 5 household members
| Surname | Thompson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Gills Creek Township |
| 1935 Residence (County) | Lancaster |
| Occupation | Truck driver |
| Industry | Machine repair shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | No 12 |
| 1935 Residence | Same house |
| 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 James Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adam Thompson (~0.92 confidence) and father Ben Thompson (~0.92 confidence) and father Wellington Thompson (~0.92 confidence) and mother Lottie Thompson (~0.92 confidence) and mother Pearl Thompson (~0.92 confidence) and mother Ida Thompson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adam Thompson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Ben Thompson
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Wellington Thompson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Lottie Thompson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Pearl Thompson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Ida Thompson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Thompson
Son · 1940 · age 24 · b. ~1916 · South Carolina
★ You are viewing this record
Sibling
Victoria Thompson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Thompson
Sibling · 1940 · age 25
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 — Lancaster-County, South Carolina
Open full size
1940 US Federal Census — Lancaster-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03820-00603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Haskell Harris | 30 | Head | Truck Driver | South Carolina |
| 2 | Mildred Harris | 28 | Wife | — | South Carolina |
| 3 | Clennon Harris | 9 | Son | — | South Carolina |
| 4 | Dorathy Harris | 7 | Daughter | — | South Carolina |
| 5 | Morrison Harris | 1 | Daughter | — | South Carolina |
| 6 | Chester Crowder | 34 | Head | Laying Frames | South Carolina |
| 7 | Ella Crowder | 34 | Wife | Servant | South Carolina |
| 8 | Ervin Crowder | 10 | Son | — | South Carolina |
| 9 | Louise Harris | 24 | Sister | Servant | South Carolina |
| 10 | Elsie Frazier | 23 | Wife | Servant | South Carolina |
| 11 | Roosevelt Mcdow | 30 | Head | Laborer | South Carolina |
| 12 | Maryfella Mcdow | 22 | Wife | — | South Carolina |
| 13 | Bennie Mcilwain | 37 | Head | Laundress | South Carolina |
| 14 | Martha Mcilwain | 9 | Daughter | — | South Carolina |
| 15 | Willie Mcilwain | 4 | Son | — | South Carolina |
| 16 | Arthur Mcilwain | 1 | Son | — | South Carolina |
| 17 | Annie Bushe | 70 | Head | — | South Carolina |
| 18 | Lovella Eckles | 37 | Head | Laborer | South Carolina |
| 19 | Alberto Eckles | 20 | Son | Laborer | South Carolina |
| 20 | Junior Eckles | 19 | Son | Laborer | South Carolina |
| 21 | Horace Robinson | 37 | Head | Laborer | South Carolina |
| 22 | Thelma Robinson | 30 | Wife | Laundress | South Carolina |
| 23 | Lula Williams | 50 | Head | — | South Carolina |
| 24 | Robert Williams | 28 | Son | Carpenter | South Carolina |
| 25 | Ellen Williams | 19 | Daughter | Seamstress | South Carolina |
| 26 | Rosalee Williams | 17 | Daughter | — | South Carolina |
| 27 | Emma Williams | 11 | Daughter | — | South Carolina |
| 28 | Vina Hinton | 72 | Head | — | South Carolina |
| 29 | Arthur Clyburn | 26 | Head | Delivery Boy | South Carolina |
| 30 | Mary Clyburn | 26 | Wife | Laundress | South Carolina |
| 31 | Louise Clyburn | 24 | Sister | Maid | South Carolina |
| 32 | Margaret Clyburn | 22 | Sister | Servant | South Carolina |
| 33 | Clarence Clyburn | 19 | Brother | Teacher | South Carolina |
| 34 | Willie Clyburn | 14 | Sister | — | South Carolina |
| 35 | Dan Clyburn | 12 | Brother | — | South Carolina |
| 36 | Adam Thompson | 67 | Head | Farmer | South Carolina |
| 37 | Lottie Thompson | 56 | Wife | Laundress | South Carolina |
| 38 | Sarah Thompson | 25 | Daughter | — | South Carolina |
| 39 | James Thompson THIS PERSON | 24 | Son | Truck Driver | South Carolina |
| 40 | Victoria Thompson | 22 | Daughter | Maid | South Carolina |
Pedigree Summary
James + 2 siblings
Gen 1 · 6 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)