IW
Isaac Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lexington-County, South Carolina
Our Model Tree links this Isaac Williams across the 1920, 1930 and 1940 US Censuses in Lexington-County, South Carolina (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 9-person household.
Age 37
b. ~1903
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lexington-County, South Carolina |
| Surname | Williams |
| Given Name | Isaac |
| Relationship to Head | head |
| Sex | M |
| Color / Race | Black |
| Age | 37 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bull Swamp |
| 1935 Residence (County) | Lexington |
| Additional Details | |
| Occupation | Farm manager |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Farm Manager |
| Township / Ward | Bull Swamp |
| Est. Birth Year | ~1903 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Earline Williams | Daughter | — | 6 | ~1934 |
| Isaac Williams | Head | — | 37 | ~1903 |
| Phillippi Williams | Other | — | 74 | ~1866 |
| Enell Williams | Son | — | 13 | ~1927 |
| Isaac Williams | Son | — | 2 | ~1938 |
| Nathaniel Williams | Son | — | 12 | ~1928 |
| Curtis Williams | Son | — | 8 | ~1932 |
| Ulysses Williams | Son | — | 11 | ~1929 |
| Agnes Williams | Spouse | — | 33 | ~1907 |
Census Appearances
1920
Richland, South …
Son, age 16
Richland, South Carolina · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Lexington, South …
Head, age 26
Lexington, South Carolina · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 21 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | No |
| Home Owned/Rented | R |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Lexington-County, South …
Head, age 37
Lexington-County, South Carolina · implied b. ~1903 — 9 household members
| Surname | Williams |
| Given Name | Isaac |
| Relationship to Head | head |
| Sex | M |
| Color / Race | Black |
| Age | 37 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bull Swamp |
| 1935 Residence (County) | Lexington |
| Occupation | Farm manager |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 0 |
| 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 Isaac Williams across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Isaac Williams
Head · 1940 · age 37 · b. ~1903 · South Carolina
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lexington-County, South Carolina
Open full size
1940 US Federal Census — Lexington-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03823-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robena Wannamaker | 2 | daughter | — | South Carolina |
| 2 | Isaac Williams THIS PERSON | 37 | head | Farm Manager | South Carolina |
| 3 | Agnes Williams | 33 | wife | — | South Carolina |
| 4 | Enell Williams | 13 | son | — | South Carolina |
| 5 | Nathaniel Williams | 12 | son | — | South Carolina |
| 6 | Ulysses Williams | 11 | son | — | South Carolina |
| 7 | Curtis Lee Williams | 8 | son | — | South Carolina |
| 8 | Earline Williams | 6 | daughter | — | South Carolina |
| 9 | Isaac Jr. Williams | 2 | son | — | South Carolina |
| 10 | Phillippi, Ella Williams | 74 | mother-in-law | — | South Carolina |
| 11 | Harry Edmond | 56 | head | Farm Manager | South Carolina |
| 12 | Effie Edmond | 40 | wife | — | South Carolina |
| 13 | Henry Edmond | 21 | son | Laborer | South Carolina |
| 14 | Matthew Edmond | 19 | son | Laborer | South Carolina |
| 15 | Clorine Edmond | 16 | daughter | — | South Carolina |
| 16 | Eliza Edmond | 15 | daughter | — | South Carolina |
| 17 | Joe Edmond | 12 | son | — | South Carolina |
| 18 | Bessie Edmond | 9 | daughter | — | South Carolina |
| 19 | Mary Edmond | 7 | daughter | — | South Carolina |
| 20 | Francis M. Edmond | 4 | son | — | South Carolina |
| 21 | Benjamin Edmond | 2 | son | — | South Carolina |
| 22 | Willie Lee Robinson | 11 | nephew | — | South Carolina |
| 23 | Willie Gaffney | 53 | head | Farm Manager | South Carolina |
| 24 | Beaulah Gaffney | 42 | wife | Laborer | South Carolina |
| 25 | Cleo Gaffney | 23 | son | Laborer | South Carolina |
| 26 | Freddie Gaffney | 16 | son | Laborer | South Carolina |
| 27 | Willie Jr. Gaffney | 3 | son | — | South Carolina |
| 28 | Ernestine Felder | 13 | adopted daughter | — | South Carolina |
| 29 | Cleo Gaffney | 23 | lodger | Laborer | South Carolina |
| 30 | Hattie Lou Gaffney | 20 | daughter-in-law | Laborer | South Carolina |
| 31 | Arthur Lee Geiger | 32 | head | Farm Manager | South Carolina |
| 32 | Marsella Geiger | 28 | wife | — | South Carolina |
| 33 | Joe Sally | 63 | head | Farm Manager | South Carolina |
| 34 | Mary Sally | 56 | wife | — | South Carolina |
| 35 | Sylveta Howell | 14 | lodger | — | South Carolina |
| 36 | Ethel Mae Sally | 13 | lodger | — | South Carolina |
| 37 | Charles H. Goldson | 23 | head | Farm Manager | South Carolina |
| 38 | Helen Goldson | 20 | wife | — | South Carolina |
| 39 | Belvin Goldson | 5 | son | — | South Carolina |
| 40 | Ethel Goldson | 3 | daughter | — | South Carolina |
Related Census Records
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)