MG
Mary Graham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Williamsburg-County, South Carolina
Our Model Tree links this Mary Graham across the 1930 and 1940 US Censuses in Williamsburg-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 14-person household.
Age 17
b. ~1923
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Williamsburg-County, South Carolina |
| Surname | Graham |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Kingstree Township |
| 1935 Residence (County) | Williamsburg |
| Additional Details | |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 520 |
| Highest Grade | No 6 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Cook |
| Township / Ward | Kingstree Township |
| Est. Birth Year | ~1923 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Graham | Daughter | — | 1 | ~1939 |
| Eveline Graham | Daughter | — | 2 | ~1938 |
| Mary Graham | Daughter | — | 17 | ~1923 |
| Pearline Graham | Daughter | — | 7 | ~1933 |
| Annie Graham | Daughter | — | 7 | ~1933 |
| Francis Graham | Daughter | — | 8 | ~1932 |
| Frances Graham | Daughter | — | 16 | ~1924 |
| Frank Graham | Head | — | 55 | ~1885 |
| Mable Graham | Other | — | 20 | ~1920 |
| Isaac Graham | Son | — | 26 | ~1914 |
| Willie Graham | Son | — | 4 | ~1936 |
| Robinson Graham | Son | — | 13 | ~1927 |
| Frank Graham | Son | — | 18 | ~1922 |
| Bessie Graham | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Williamsburg, South …
Other, age 7
Williamsburg, South Carolina · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Mary |
| Relationship to Head | G daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| 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
Williamsburg-County, South …
Daughter, age 17
Williamsburg-County, South Carolina · implied b. ~1923 — 14 household members
| Surname | Graham |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Kingstree Township |
| 1935 Residence (County) | Williamsburg |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 520 |
| Highest Grade | No 6 |
| 1935 Residence | South Carolina |
| 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 Mary Graham across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Graham
Daughter · 1940 · age 17 · b. ~1923 · South Carolina
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Sibling
Isaac Graham
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Graham
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Graham
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eveline Graham
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Graham
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearline Graham
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Graham
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robinson Graham
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Graham
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Graham
Sibling · 1940 · age 8
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 — Williamsburg-County, South Carolina
Open full size
1940 US Federal Census — Williamsburg-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03844-00678)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jettie May Mclean | 5 | daughter | — | South Carolina |
| 42 | Lonnie D. Nesmith | 65 | Head | — | South Carolina |
| 43 | Willard Nesmith | 36 | Head | Merchant | South Carolina |
| 44 | Pearl Nesmith | 29 | Wife | — | South Carolina |
| 45 | Margeret Nesmith | 7 | Daughter | — | South Carolina |
| 46 | Bill Nesmith | 5 | Son | — | South Carolina |
| 47 | Henry Brown | 38 | Head | Postmaster | South Carolina |
| 48 | Silas Courtney | 25 | Head | Section Hand | South Carolina |
| 49 | Lillian Courtney | 21 | Wife | — | South Carolina |
| 50 | Jerrie Courtney | 6 | Daughter | — | South Carolina |
| 51 | Alice Courtney | 4 | Daughter | — | South Carolina |
| 52 | Manon Courtney | 3 | Daughter | — | South Carolina |
| 53 | Margalee Courtney | 1 | Daughter | — | South Carolina |
| 54 | Thomas Mcteheer | 36 | Head | Section Hand | South Carolina |
| 55 | Mattie Mcteheer | 26 | Wife | — | South Carolina |
| 56 | Creighton Hinds | 45 | Head | Section Boss | South Carolina |
| 57 | Beatrice Hinds | 45 | Wife | — | South Carolina |
| 58 | Mitchel Hinds | 12 | Son | — | South Carolina |
| 59 | Cristopher Jones | 75 | Head | — | North Carolina |
| 60 | Lottie Jones | 50 | Wife | Laborer | South Carolina |
| 61 | Essie Jones | 20 | Daughter | Laborer | South Carolina |
| 62 | Mary Jones | 12 | Daughter | — | South Carolina |
| 63 | Frank Graham | 55 | Head | Farmer | South Carolina |
| 64 | Bessie Graham | 34 | Wife | Laborer | South Carolina |
| 65 | Frank Jr. Graham | 18 | Son | Laborer | South Carolina |
| 66 | Frances Graham | 16 | Daughter | Laborer | South Carolina |
| 67 | Robinson Graham | 13 | Son | — | South Carolina |
| 68 | Francis Graham | 8 | Daughter | — | South Carolina |
| 69 | Pearline Graham | 7 | Daughter | — | South Carolina |
| 70 | Annie Mae Graham | 7 | Daughter | — | South Carolina |
| 71 | Willie Graham | 4 | Son | — | South Carolina |
| 72 | Eveline Graham | 2 | Daughter | — | South Carolina |
| 73 | Dorothy Graham | 1 | Daughter | — | South Carolina |
| 74 | Isaac Graham | 26 | Son | Laborer | South Carolina |
| 75 | Mable Graham | 20 | Daughter-in-law | Laborer | South Carolina |
| 76 | Mary Graham THIS PERSON | 17 | Daughter | Cook | South Carolina |
| 77 | Mary Mcknight | 45 | Head | Cook | South Carolina |
| 78 | Sam Mcknight | 20 | Son | Laborer | South Carolina |
| 79 | Ben Mcknight | 15 | Son | Laborer | South Carolina |
| 80 | Clifton Mcknight | 14 | Son | Laborer | 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)