MG
Mary Graves — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, South Carolina
Our Model Tree links this Mary Graves across the 1930 and 1940 US Censuses in Marion-County, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 9-person household.
Age 35
b. ~1905
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, South Carolina |
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Brittons Neck township |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 20 |
| 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 Laborer |
| Township / Ward | Brittons Neck Township |
| Est. Birth Year | ~1905 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Wesley Graves | Son | — | 5 | ~1935 |
| Isaiah Graves | Son | — | 8 | ~1932 |
| George Graves | Son | — | 12 | ~1928 |
| Mary Graves | Spouse | — | 35 | ~1905 |
| Aubrey Graves | Son | — | 6 | ~1934 |
| Andrew Graves | Son | — | 1 | ~1939 |
| Woodrow Graves | Son | — | 11 | ~1929 |
| Phillip Graves | Son | — | 9 | ~1931 |
| Lofton Graves | Head | — | 38 | ~1902 |
Census Appearances
1930
Marion, South …
Other, age 20
Marion, South Carolina · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 16 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Marion-County, South …
Spouse, age 35
Marion-County, South Carolina · implied b. ~1905 — 9 household members
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Brittons Neck township |
| 1935 Residence (County) | Marion |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 20 |
| 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 Mary Graves across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Graves
Spouse · 1940 · age 35 · b. ~1905 · 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 — Marion-County, South Carolina
Open full size
1940 US Federal Census — Marion-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03825-00062)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Johnson | 48 | Head | Watchman | North Carolina |
| 2 | Birdell Johnson | 28 | Wife | — | South Carolina |
| 3 | Delois H. Herring | 9 | Daughter | — | South Carolina |
| 4 | Fred C. Herring | 7 | Son | — | South Carolina |
| 5 | Elsa M. Herring | 5 | Daughter | — | South Carolina |
| 6 | Henry Johnson | 3 | Son | — | South Carolina |
| 7 | Robert W. Johnson | 0 | Son | — | South Carolina |
| 8 | Lonnie Causey | 35 | Head | Laborer | South Carolina |
| 9 | Beala Causey | 30 | Wife | — | South Carolina |
| 10 | James Causey | 13 | Son | — | South Carolina |
| 11 | Harley Causey | 11 | Son | — | South Carolina |
| 12 | Joshell Causey | 9 | Daughter | — | South Carolina |
| 13 | Thomas Causey | 4 | Son | — | South Carolina |
| 14 | Hazel Causey | 3 | Daughter | — | South Carolina |
| 15 | Andarilla Causey | 2 | Daughter | — | South Carolina |
| 16 | Suzana Causey | 0 | Daughter | — | South Carolina |
| 17 | Lou Causey | 76 | Grand mother | — | South Carolina |
| 18 | Rullia Backus | 25 | Cousin | Farm Laborer | South Carolina |
| 19 | Lee Woodberry | 34 | Head | Farmer | South Carolina |
| 20 | Rosetta Woodberry | 25 | Wife | — | South Carolina |
| 21 | Willie Woodberry | 13 | Son | — | South Carolina |
| 22 | Joseph Woodberry | 12 | Son | — | South Carolina |
| 23 | Hardy L. Woodberry | 10 | Son | — | South Carolina |
| 24 | Ethel L. Woodberry | 4 | Daughter | — | South Carolina |
| 25 | Lofton Graves | 38 | Head | Farmer | South Carolina |
| 26 | Mary Graves THIS PERSON | 35 | Wife | Farm Laborer | South Carolina |
| 27 | George W. Graves | 12 | Son | — | South Carolina |
| 28 | Woodrow Graves | 11 | Son | — | South Carolina |
| 29 | Phillip Graves | 9 | Son | — | South Carolina |
| 30 | Isaiah Graves | 8 | Son | — | South Carolina |
| 31 | Aubrey Graves | 6 | Son | — | South Carolina |
| 32 | Wesley Graves | 5 | Son | — | South Carolina |
| 33 | Andrew Graves | 1 | Son | — | South Carolina |
| 34 | Miles Richardson | 39 | Head | Section Hand | South Carolina |
| 35 | Georgia Richardson | 31 | Wife | Farm Laborer | South Carolina |
| 36 | Magnolia Richardson | 15 | Daughter | Farm Laborer | South Carolina |
| 37 | Lizzie Richardson | 8 | Daughter | — | South Carolina |
| 38 | Wilbert Richardson | 7 | Son | — | South Carolina |
| 39 | Annie Richardson | 6 | Daughter | — | South Carolina |
| 40 | Hattie Richardson | 2 | 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)