MC
Mary Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Williamsburg-County, South Carolina
Our Model Tree links this Mary Cooper across the 1920, 1930 and 1940 US Censuses in Williamsburg-County, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Williamsburg-County, South Carolina |
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Williamsburg |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Turkey 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Domy Cooper | Daughter | — | 3 | ~1937 |
| Florence Cooper | Daughter | — | 10 | ~1930 |
| Hodges Cooper | Head | — | 40 | ~1900 |
| Sam Cooper | Son | — | 5 | ~1935 |
| Mary Cooper | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Williamsburg, South …
Other, age 12
Williamsburg, South Carolina · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Maria |
| Relationship to Head | Step-daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Williamsburg, South …
Other, age 23
Williamsburg, South Carolina · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Wife's Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Williamsburg-County, South …
Spouse, age 35
Williamsburg-County, South Carolina · implied b. ~1905 — 5 household members
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Williamsburg |
| Highest Grade | No 7 |
| 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 Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cooper
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 — 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-t0627-03844-00633)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wovals | 2 | Niece | — | South Carolina |
| 42 | Rubie Wovals | 1 | Daughter | — | South Carolina |
| 43 | Vanda Wovals | 1 | Nephew | — | South Carolina |
| 44 | Purvis Wovals | 2 | Son | — | South Carolina |
| 45 | Melia Wovals | 77 | Mother | — | South Carolina |
| 46 | Thomas Nesmith | 57 | Head | Farmer | South Carolina |
| 47 | Louisa Nesmith | 49 | Wife | — | South Carolina |
| 48 | Wilford Nesmith | 20 | Son | Laborer | South Carolina |
| 49 | Worthela Nesmith | 12 | Daughter | — | South Carolina |
| 50 | Isaiah Nesmith | 8 | Son | — | South Carolina |
| 51 | Alex Nesmith | 10 | Son | — | South Carolina |
| 52 | Cicero Nesmith | 22 | Head | Farmer | South Carolina |
| 53 | Jane Nesmith | 20 | Wife | — | South Carolina |
| 54 | Alma Nesmith | 1 | Daughter | — | South Carolina |
| 55 | Anna Paul | 59 | Mother-in-law | — | South Carolina |
| 56 | Hodges Cooper | 40 | Head | Farmer | South Carolina |
| 57 | Mary Cooper THIS PERSON | 35 | Wife | — | South Carolina |
| 58 | Florence Cooper | 10 | Daughter | — | South Carolina |
| 59 | Sam Cooper | 5 | Son | — | South Carolina |
| 60 | Domy Cooper | 3 | Daughter | — | South Carolina |
| 61 | Sam J. Nesmith | 58 | Head | Farmer | South Carolina |
| 62 | Lillie Nesmith | 42 | Wife | — | South Carolina |
| 63 | Pansie Nesmith | 14 | Daughter | — | South Carolina |
| 64 | Edward Nesmith | 13 | Son | — | South Carolina |
| 65 | Roshell Nesmith | 16 | Son | — | South Carolina |
| 66 | Letha Nesmith | 12 | Daughter | — | South Carolina |
| 67 | Hugh Nesmith | 8 | Son | — | South Carolina |
| 68 | Willie Nesmith | 9 | Son | — | South Carolina |
| 69 | Gladis Nesmith | 6 | Daughter | — | South Carolina |
| 70 | Ronvelt Nesmith | 3 | Son | — | South Carolina |
| 71 | Peter Nesmith | 48 | Head | Farmer | South Carolina |
| 72 | Luttie Nesmith | 47 | Wife | — | South Carolina |
| 73 | James Nesmith | 18 | Son | Laborer | South Carolina |
| 74 | Bertha Nesmith | 17 | Daughter | — | South Carolina |
| 75 | Johnnie Nesmith | 16 | Son | Laborer | South Carolina |
| 76 | Nula Nesmith | 14 | Daughter | — | South Carolina |
| 77 | Robinson Nesmith | 6 | Son | — | South Carolina |
| 78 | Ida B. Nesmith | 5 | Daughter | — | South Carolina |
| 79 | Peter Jr. Nesmith | 1 | Son | — | South Carolina |
| 80 | John H. Nesmith | 60 | Head | Farmer | 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)