MC
Mary Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Edgefield-County, South Carolina
Our Model Tree links this Mary Clark across the 1920, 1930 and 1940 US Censuses in Edgefield-County, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Edgefield-County, South Carolina |
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Edgefield |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 7 |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Ward Township |
| Est. Birth Year | ~1878 |
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 |
|---|---|---|---|---|
| John Clark | Head | — | 65 | ~1875 |
| Olin Clark | Son | — | 41 | ~1899 |
| Mary Clark | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Edgefield, South …
Spouse, age 42
Edgefield, South Carolina · implied b. ~1878 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| 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 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 20 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Home maker |
| Industry | Own home |
| Class of Worker | XXXX |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Edgefield-County, South …
Spouse, age 62
Edgefield-County, South Carolina · implied b. ~1878 — 3 household members
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Edgefield |
| Industry | 0 |
| Highest Grade | No 7 |
| 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 Clark 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 Clark
Spouse · 1940 · age 62 · b. ~1878 · 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-t0627-03806-00434)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carmetrie Weaver | 2 | daughter | — | South Carolina |
| 42 | Sam Canady | 41 | head | Farm | South Carolina |
| 43 | Ella May Canady | 40 | wife | — | South Carolina |
| 44 | George Canady | 18 | son | Farm | South Carolina |
| 45 | Florence Canady | 15 | daughter | — | South Carolina |
| 46 | Bennie Canady | 14 | son | — | South Carolina |
| 47 | Annie May Canady | 12 | daughter | — | South Carolina |
| 48 | Hattie Frances Canady | 2 | grand daughter | — | South Carolina |
| 49 | Charlie D. Clark | 33 | head | Farm | South Carolina |
| 50 | Lillian Clark | 28 | wife | — | South Carolina |
| 51 | Arthur Richardson | 26 | head | Farm | South Carolina |
| 52 | Harriette Richardson | 70 | mother | — | South Carolina |
| 53 | Lillian Timmerman | 40 | head | Farm | South Carolina |
| 54 | Bertha Timmerman | 24 | daughter | Farm | South Carolina |
| 55 | Connie Timmerman | 23 | daughter | Farm | South Carolina |
| 56 | Efarious Timmerman | 16 | son | Farm | South Carolina |
| 57 | May Timmerman | 14 | daughter | Farm | South Carolina |
| 58 | Cliford Benjamin Timmerman | 12 | son | — | South Carolina |
| 59 | Joe Timmerman | 9 | daughter | — | South Carolina |
| 60 | Lloyd Timmerman | 5 | son | — | South Carolina |
| 61 | Tant Timmerman | 4 | son | — | South Carolina |
| 62 | Charlie Stedman | 66 | head | Farm | South Carolina |
| 63 | Martha Lee Stedman | 65 | wife | — | South Carolina |
| 64 | Clemon Lee Stedman | 5 | grand daughter | — | South Carolina |
| 65 | Robert Stedman | 3 | grand son | — | South Carolina |
| 66 | Annie May Collie | 22 | head | Farm | South Carolina |
| 67 | Martin Corline Collie | 50 | mother | Farm | South Carolina |
| 68 | John A. Clark | 65 | head | Farm | South Carolina |
| 69 | Mary Clark THIS PERSON | 62 | wife | — | South Carolina |
| 70 | Olin Clark | 41 | son | Carpenter | South Carolina |
| 71 | L. A. Claxon | 33 | head | Farm | South Carolina |
| 72 | Daisy Bell Claxon | 31 | wife | — | South Carolina |
| 73 | Joe Ann Claxon | 2 | daughter | — | South Carolina |
| 74 | W. A. Jr. Clark | 30 | brother-in-law | Farm | South Carolina |
| 75 | Pearl Clark | 34 | sister | — | South Carolina |
| 76 | Margaret Clark | 6 | niece | — | South Carolina |
| 77 | Hubert Harris | 34 | head | Farm | South Carolina |
| 78 | Mary Harris | 35 | wife | — | South Carolina |
| 79 | Rosa Bell Harris | 17 | daughter | — | South Carolina |
| 80 | Sanky Harris | 15 | son | Farm | 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)