MW
Mamie Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allendale-County, South Carolina
Our Model Tree links this Mamie Williams across the 1920, 1930 and 1940 US Censuses in Allendale-County, South Carolina (XGBoost, ~Confirmed), with identified parents Ogan & Almar — first a daughter (b.~1917), then head of a 8-person household.
Age 23
b. ~1917
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allendale-County, South Carolina |
| Surname | Williams |
| Given Name | Mamie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Allendale |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Allendale 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mamie | Age | Birth yr |
|---|---|---|---|---|
| Clenitine Williams | Daughter | — | 17 | ~1923 |
| Celestine Williams | Daughter | — | 24 | ~1916 |
| Mamie Williams | Daughter | — | 23 | ~1917 |
| Oscar Williams | Head | — | 66 | ~1874 |
| Celestine Williams | Other | — | 25 | ~1915 |
| Henry Williams | Son | — | 25 | ~1915 |
| Shurman Williams | Son | — | 19 | ~1921 |
| Almar Williams | Spouse | — | 66 | ~1874 |
Census Appearances
1920
Allendale, South …
Daughter, age 4
Allendale, South Carolina · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mamie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| 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
Allendale, South …
Daughter, age 14
Allendale, South Carolina · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mamie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Allendale-County, South …
Daughter, age 23
Allendale-County, South Carolina · implied b. ~1917 — 8 household members
| Surname | Williams |
| Given Name | Mamie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Allendale |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Mamie Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ogan Williams (~0.92 confidence) and mother Almar Williams (~0.92 confidence) and father Oscar Williams (~0.92 confidence) and mother Alsena Williams (~0.92 confidence) and mother Algena Williams (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ogan Williams
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Almar Williams
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Oscar Williams
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Alsena Williams
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Algena Williams
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mamie Williams
Daughter · 1940 · age 23 · b. ~1917 · South Carolina
★ You are viewing this record
Sibling
Shurman Williams
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Williams
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Celestine Williams
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clenitine Williams
Sibling · 1940 · age 17
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 — Allendale-County, South Carolina
Open full size
1940 US Federal Census — Allendale-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03784-00158)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mattie Best | 16 | daughter | — | South Carolina |
| 42 | Etta Best | 14 | daughter | — | South Carolina |
| 43 | Mabel Best | 11 | daughter | — | South Carolina |
| 44 | Alonzo Jr Best | 8 | son | — | South Carolina |
| 45 | Mary Lee Best | 7 | daughter | — | South Carolina |
| 46 | Mary Alice Best | 4 | daughter | — | South Carolina |
| 47 | Bernice Best | 2 | daughter | — | South Carolina |
| 48 | Arthur Manuel | 40 | Head | Laborer | South Carolina |
| 49 | Ranie Manuel | 27 | wife | Laborer | South Carolina |
| 50 | Ester Manuel | 7 | daughter | — | South Carolina |
| 51 | Carrie Bell Manuel | 5 | daughter | — | South Carolina |
| 52 | Minnie Lee Manuel | 4 | daughter | — | South Carolina |
| 53 | Birdell Manuel | 3 | daughter | — | South Carolina |
| 54 | Martin Manuel | 22 | cousin | Laborer | South Carolina |
| 55 | Lee Thomas Manuel | 20 | cousin | Laborer | South Carolina |
| 56 | Lucretia Manuel | 64 | mother | — | South Carolina |
| 57 | Grey Allen | 42 | Head | Farmer | South Carolina |
| 58 | W. G. Allen | 18 | son | Laborer | South Carolina |
| 59 | Frankie Allen | 15 | son | Laborer | South Carolina |
| 60 | Ida May Allen | 19 | daughter | Laborer | South Carolina |
| 61 | Rosa Allen | 13 | daughter | — | South Carolina |
| 62 | Josie Bell Allen | 11 | daughter | — | South Carolina |
| 63 | Angieria Allen | 8 | daughter | — | South Carolina |
| 64 | D. J. Harter | 65 | Head | Farmer | South Carolina |
| 65 | Sina Harter | 38 | wife | — | South Carolina |
| 66 | Leroy Brotham | 36 | Head | Laborer | South Carolina |
| 67 | Leon Bestman | 32 | Head | Laborer | South Carolina |
| 68 | Ronell Bestman | 20 | wife | Laborer | South Carolina |
| 69 | Earline Bestman | 4 | daughter | — | South Carolina |
| 70 | Henry Bryant | 60 | Head | Laborer | South Carolina |
| 71 | Keziah Bryant | 26 | wife | Laborer | South Carolina |
| 72 | Willie James Bryant | 13 | nephew | — | South Carolina |
| 73 | Oscar Williams | 66 | Head | Farmer | South Carolina |
| 74 | Almar Williams | 66 | wife | — | South Carolina |
| 75 | Celestine Williams | 24 | daughter | Laborer | South Carolina |
| 76 | Clenitine Williams | 17 | daughter | — | South Carolina |
| 77 | Mamie Williams THIS PERSON | 23 | daughter | — | South Carolina |
| 78 | Shurman Williams | 19 | son | — | South Carolina |
| 79 | Henry Williams | 25 | son | Farm Helper | South Carolina |
| 80 | Celestine Williams | 25 | daughter-in-law | Farm Helper | South Carolina |
Related Census Records
Pedigree Summary
Mamie + 4 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)