MT
Mary Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Orangeburg-County, South Carolina
Our Model Tree links this Mary Thomas across the 1920, 1930 and 1940 US Censuses in Orangeburg-County, South Carolina (XGBoost, ~Confirmed), with identified parents Dawson — first a head (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Female
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Orangeburg-County, South Carolina |
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Orangeburg |
| Additional Details | |
| Occupation | Same place |
| Industry | 48 |
| Class of Worker | Laundress |
| Highest Grade | No 4 |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Same Place |
| Township / Ward | Orangeburg City |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lloyd Thomas | Daughter | — | 3 | ~1937 |
| Thelma Thomas | Daughter | — | 5 | ~1935 |
| Mary Thomas | Head | — | 29 | ~1911 |
| Ezell Thomas | Son | — | 9 | ~1931 |
Census Appearances
1920
Orangeburg, South …
Other, age 5
Orangeburg, South Carolina · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Orangeburg, South …
Daughter, age 16
Orangeburg, South Carolina · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Orangeburg-County, South …
Head, age 29
Orangeburg-County, South Carolina · implied b. ~1911 — 4 household members
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Orangeburg |
| Occupation | Same place |
| Industry | 48 |
| Class of Worker | Laundress |
| Highest Grade | No 4 |
| 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 Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Dawson Thomas (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dawson Thomas
b. ~1879
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Thomas
Head · 1940 · age 29 · b. ~1911 · 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 — Orangeburg-County, South Carolina
Open full size
1940 US Federal Census — Orangeburg-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03829-00165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Doris Smith | 1 | Daughter | Same Place | South Carolina |
| 2 | Chester Harding | 20 | Head | Same Place | South Carolina |
| 3 | Margaret Harding | 30 | Wife | Same Place | South Carolina |
| 4 | William Blake | 16 | Son | Same Place | South Carolina |
| 5 | Margret Blake | 13 | Daughter | Same Place | South Carolina |
| 6 | Louie Walling | 17 | Lodger | Same Place | South Carolina |
| 7 | Bettie Walling | 1 | Lodger | Same Place | South Carolina |
| 8 | Fred Walling | 20 | Head | Same Place | South Carolina |
| 9 | Alma Walling | 20 | Wife | Same Place | South Carolina |
| 10 | Elizabeth Brunson | 54 | Mother-in-law | Same Place | South Carolina |
| 11 | Borie Harley | 23 | Head | Same Place | South Carolina |
| 12 | Kathin Harley | 19 | Wife | Same Place | South Carolina |
| 13 | Annie Whitfield | 48 | Head | Same Place | South Carolina |
| 14 | Eddie Fielder | 19 | Grand Son | Same Place | South Carolina |
| 15 | Martha Furness | 28 | Lodger | Same Place | South Carolina |
| 16 | Daisy Stromand | 29 | Head | Same Place | South Carolina |
| 17 | Mary J. Harley | 70 | Head | Same Place | South Carolina |
| 18 | Eugene Lee | 24 | Head | Same Place | South Carolina |
| 19 | Cassie M. Lee | 21 | Wife | Same Place | South Carolina |
| 20 | Joseph Whitmore | 24 | Head | Same Place | South Carolina |
| 21 | Emma Whitmore | 21 | Wife | Same Place | South Carolina |
| 22 | Harry C. Mars | 38 | Head | Same Place | South Carolina |
| 23 | Mary Thomas THIS PERSON | 29 | Head | Same Place | South Carolina |
| 24 | Ezell Thomas | 9 | Son | Same Place | South Carolina |
| 25 | Thelma Thomas | 5 | Daughter | Same Place | South Carolina |
| 26 | Lloyd Thomas | 3 | Daughter | Same Place | South Carolina |
| 27 | Lula Baxter | 22 | Head | Same Place | South Carolina |
| 28 | James Baxter | 7 | Son | Same Place | South Carolina |
| 29 | Junior Baxter | 4 | Son | Same Place | South Carolina |
| 30 | Rachel Jamison | 32 | Head | Same Place | South Carolina |
| 31 | James Murphy | 65 | Head | Same Place | South Carolina |
| 32 | Anna Murphy | 63 | Wife | Same Place | South Carolina |
| 33 | Malcolm Gidly | 36 | Head | Same Place | South Carolina |
| 34 | Harry Gidly | 12 | Son | Same Place | South Carolina |
| 35 | Margaret Gidly | 10 | Daughter | Same Place | South Carolina |
| 36 | Doris Gidly | 7 | Daughter | Same Place | South Carolina |
| 37 | Elizabeth Furgeany | 37 | House Keeper | Same Place | South Carolina |
| 38 | Fannie Block | 27 | Head | Same Place | South Carolina |
| 39 | Marion Way | 22 | Boarder | Same Place | South Carolina |
| 40 | Clarence Way | 5 | Boarder | Same Place | South Carolina |
Pedigree Summary
Mary
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)