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Mary Black — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Edgefield-County, South Carolina
Our Model Tree links this Mary Black across the 1920, 1930 and 1940 US Censuses in Edgefield-County, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 3-person household.
Age 61
b. ~1879
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Edgefield-County, South Carolina |
| Surname | Black |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Trenton town |
| 1935 Residence (County) | Edgefield |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Trenton Town |
| Est. Birth Year | ~1879 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Black | Daughter | — | 30 | ~1910 |
| Oscar Black | Head | — | 59 | ~1881 |
| Mary Black | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Edgefield, South …
Spouse, age 40
Edgefield, South Carolina · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farmer |
| Industry | Cotton |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Edgefield, South …
Spouse, age 51
Edgefield, South Carolina · implied b. ~1879 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 29 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Housework |
| Industry | Own home |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Edgefield-County, South …
Spouse, age 61
Edgefield-County, South Carolina · implied b. ~1879 — 3 household members
| Surname | Black |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Trenton town |
| 1935 Residence (County) | Edgefield |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 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 Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Black
Spouse · 1940 · age 61 · b. ~1879 · South Carolina
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Edgefield-County, South Carolina
Open full size
1940 US Federal Census — Edgefield-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03806-00363)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lona Carpenter | 54 | Head | Foreman | South Carolina |
| 2 | Paul Carpenter | 24 | Son | Cutting | South Carolina |
| 3 | Lona Mae Carpenter | 14 | Daughter | — | South Carolina |
| 4 | Hugh S Quarles | 70 | Head | — | South Carolina |
| 5 | Lula Quarles | 69 | Wife | — | South Carolina |
| 6 | Oscar Quarles | 48 | Son | — | South Carolina |
| 7 | Lizzie Quarles | 46 | Daughter | — | South Carolina |
| 8 | Frank Coats | 78 | Head | — | South Carolina |
| 9 | James Glover | 25 | Head | Laborer | South Carolina |
| 10 | Liza Glover | 20 | Wife | — | South Carolina |
| 11 | Ned Langeford | 22 | Head | Cook | South Carolina |
| 12 | Sophia Langeford | 20 | Wife | Laborer | South Carolina |
| 13 | James R Penn | 42 | Head | — | South Carolina |
| 14 | Mary Penn | 39 | Wife | Merchant | South Carolina |
| 15 | James M Penn | 18 | Son | — | South Carolina |
| 16 | Mary Francis Penn | 15 | Daughter | — | South Carolina |
| 17 | June Penn | 11 | Daughter | — | South Carolina |
| 18 | William H Penn | 5 | Son | — | South Carolina |
| 19 | Grecy Lowe | 67 | Head | — | South Carolina |
| 20 | Lloyd Leroy Lowe | 6 | Son | — | South Carolina |
| 21 | William E Powell | 35 | Head | — | South Carolina |
| 22 | Annie Mae Powell | 34 | Wife | Clerk | South Carolina |
| 23 | William R Powell | 13 | Son | — | South Carolina |
| 24 | Robert A Powell | 11 | Son | — | South Carolina |
| 25 | Harry L Powell | 8 | Son | — | South Carolina |
| 26 | Theodore Rainford | 24 | Head | Laborer | South Carolina |
| 27 | Hattie Rainford | 17 | Wife | — | South Carolina |
| 28 | Sarah Brown | 29 | Lodger | Teacher | Georgia |
| 29 | Sarah Brown | 25 | Lodger | Teacher | South Carolina |
| 30 | Thelma Mabry | 25 | Lodger | Teacher | South Carolina |
| 31 | James C. Day | 48 | Head | Truck Driver | South Carolina |
| 32 | Edith M Day | 50 | Wife | — | South Carolina |
| 33 | Ben Day | 18 | Son | Textile Worker | South Carolina |
| 34 | Edith Day | 14 | Daughter | — | South Carolina |
| 35 | Marion Butler | 21 | Nephew | Textile Worker | South Carolina |
| 36 | Francis Butler | 19 | Nephew | Textile Worker | South Carolina |
| 37 | Oscar L Black | 59 | Head | Farm Owner | South Carolina |
| 38 | Mary Black THIS PERSON | 61 | Wife | — | South Carolina |
| 39 | James Louise Black | 30 | Daughter | Waitress | South Carolina |
| 40 | Pickens Jr Chandler | 55 | Head | 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)