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Martha Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Williamsburg-County, South Carolina
Our Model Tree links this Martha Gray across the 1930 and 1940 US Censuses in Williamsburg-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Williamsburg-County, South Carolina |
| Surname | Gray |
| Given Name | Martha A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter Township |
| 1935 Residence (County) | Williamsburg |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same Place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Sumter Township |
| Est. Birth Year | ~1927 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Hazel Gray | Son | — | 6 | ~1934 |
| Sam Gray | Head | — | 38 | ~1902 |
| Clyde Gray | Son | — | 10 | ~1930 |
| Martha Gray | Daughter | — | 13 | ~1927 |
| Hoyt Gray | Son | — | 16 | ~1924 |
| Sherwood Gray | Son | — | 3 | ~1937 |
| Grace Gray | Spouse | — | 37 | ~1903 |
| Hubert Gray | Son | — | 19 | ~1921 |
Census Appearances
1930
Williamsburg, South …
Daughter, age 2
Williamsburg, South Carolina · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Martha L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| 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 |
1940
Williamsburg-County, South …
Daughter, age 13
Williamsburg-County, South Carolina · implied b. ~1927 — 8 household members
| Surname | Gray |
| Given Name | Martha A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter Township |
| 1935 Residence (County) | Williamsburg |
| Highest Grade | 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 Martha Gray across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Gray
Daughter · 1940 · age 13 · b. ~1927 · South Carolina
★ You are viewing this record
Sibling
Hoyt Gray
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clyde Gray
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hubert Gray
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sherwood Gray
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Gray
Sibling · 1940 · age 6
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-t0627-03844-00406)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Asher Oliver | 20 | Head | Helper | South Carolina |
| 42 | Millie Branco | 4 | Lodger | — | South Carolina |
| 43 | William W. Huggins | 24 | Head | Farmer | South Carolina |
| 44 | Basil Huggins | 22 | Wife | — | South Carolina |
| 45 | Bella Huggins | 3 | Daughter | — | South Carolina |
| 46 | Sam E. Gray | 38 | Head | Farmer | South Carolina |
| 47 | Grace Gray | 37 | Wife | — | South Carolina |
| 48 | Hubert F. Gray | 19 | Son | — | South Carolina |
| 49 | Hoyt E. Gray | 16 | Son | — | South Carolina |
| 50 | Martha A. Gray THIS PERSON | 13 | Daughter | — | South Carolina |
| 51 | Clyde J. Gray | 10 | Son | — | South Carolina |
| 52 | Hazel L. Gray | 6 | Son | — | South Carolina |
| 53 | Sherwood A. Gray | 3 | Son | — | South Carolina |
| 54 | Jas. P. Weaver | 56 | Head | Farmer | South Carolina |
| 55 | Mary J. Weaver | 43 | Wife | — | South Carolina |
| 56 | Travis L. Weaver | 18 | Daughter | — | South Carolina |
| 57 | Emma J. Weaver | 16 | Daughter | — | South Carolina |
| 58 | Jas. P. Jr. Weaver | 13 | Son | — | South Carolina |
| 59 | Silas J. Weaver | 9 | Son | — | South Carolina |
| 60 | Mary J. Weaver | 2 | Daughter | — | South Carolina |
| 61 | Fred Myers | 38 | Head | Farmer | Tennessee |
| 62 | Tasha Myers | 33 | Wife | — | South Carolina |
| 63 | Freddie Myers | 11 | Son | — | South Carolina |
| 64 | Geraldine Myers | 4 | Daughter | — | South Carolina |
| 65 | Gerald Myers | 12 | Son | — | South Carolina |
| 66 | Joe Alford | 34 | Head | Farmer | South Carolina |
| 67 | Rosie Alford | 31 | Wife | — | South Carolina |
| 68 | Lula M. Alford | 4 | Daughter | — | South Carolina |
| 69 | Sherman Baker | 33 | Head | Farmer | South Carolina |
| 70 | Minnie B. Baker | 17 | Wife | — | South Carolina |
| 71 | Cripple Baker | 14 | Son | — | South Carolina |
| 72 | Sherman L. Baker | 12 | Son | — | South Carolina |
| 73 | Susan J. Mckenzie | 66 | Mother in law | — | South Carolina |
| 74 | Early Simon | 24 | Head | Farmer | South Carolina |
| 75 | Leola H. Simon | 23 | Wife | — | South Carolina |
| 76 | Carlina Simon | 0 | Daughter | — | South Carolina |
| 77 | Samuel W. Simon | 6 | Brother in law | — | South Carolina |
| 78 | Lloyd Brown | 26 | Head | Farmer | South Carolina |
| 79 | Ola Brown | 27 | Wife | — | South Carolina |
| 80 | Malice Brown | 5 | 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)