MT
Mary Thomas — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Fairfield, South Carolina
Our Model Tree links this Mary Thomas across the 1900, 1910, 1920 and 1930 US Censuses in Fairfield, South Carolina (XGBoost, ~Confirmed) — first a head (b.~1847), then head of a 3-person household.
Age 83
b. ~1847
Female
Head
Born: South Carolina
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Fairfield, South Carolina |
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 83 |
| Marital Status | Widowed |
| Birthplace | South Carolina |
| Age at First Marriage | 20 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Radio Set | R |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Ridgeway Town |
| Est. Birth Year | ~1847 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lula Thomas | Daughter | — | 44 | ~1886 |
| Mary Thomas | Head | — | 83 | ~1847 |
| Rebecca Edwards | Other | — | 74 | ~1856 |
Census Appearances
1900
Fairfield, South …
Other, age 54
Fairfield, South Carolina · implied b. ~1846 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary H |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Birth Month | Nov |
| Birth Year | 1846 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1910
Fairfield, South …
Head, age 63
Fairfield, South Carolina · implied b. ~1847 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Children Born | 0 |
| Children Living | 0 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farmer |
| Industry | General farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1920
Fairfield, South …
Other, age 73
Fairfield, South Carolina · implied b. ~1847 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Single |
| 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
Fairfield, South …
Head, age 83
Fairfield, South Carolina · implied b. ~1847 — 3 household members
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 83 |
| Marital Status | Widowed |
| Birthplace | South Carolina |
| Age at First Marriage | 20 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Radio Set | R |
| 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 4 US Census years (1900, 1910, 1920 and 1930) in Fairfield, South Carolina, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Thomas
Head · 1930 · age 83 · b. ~1847 · South Carolina
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Fairfield, South Carolina
Open full size
1930 US Federal Census — Fairfield, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2196unit:0164)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl C Harman | 41 | Head | Postmaster | South Carolina |
| 2 | Alice Harman | 36 | Wife | — | South Carolina |
| 3 | Carl Jr Harman | 9 | Son | — | South Carolina |
| 4 | Olive Harman | 5 | Son | — | South Carolina |
| 5 | James Harman | 2 | Son | — | South Carolina |
| 6 | Elizabeth Cooper | 75 | Head | — | South Carolina |
| 7 | Effie Cooper | 40 | Daughter | — | South Carolina |
| 8 | Stephen Sessions | 41 | Head | Farmer | South Carolina |
| 9 | Sophie Sessions | 45 | Wife | — | South Carolina |
| 10 | Archie Watson | 63 | Head | Farmer | South Carolina |
| 11 | Oscar Watson | 35 | Son | Laborer | South Carolina |
| 12 | Lula V Lawson | 46 | Head | — | South Carolina |
| 13 | Raymond Lawson | 17 | Son | Laborer | South Carolina |
| 14 | Thelma Lawson | 12 | Daughter | — | South Carolina |
| 15 | Margaret Lawson | 10 | Daughter | — | South Carolina |
| 16 | John Ewin | 41 | Head | Farmer | South Carolina |
| 17 | Annie Lee Ewin | 37 | Wife | — | South Carolina |
| 18 | James Ewin | 10 | Son | — | South Carolina |
| 19 | Frank T Harman | 60 | Head | Farmer | South Carolina |
| 20 | Sallie M Harman | 45 | Wife | — | South Carolina |
| 21 | Francis M Harman | 23 | Daughter | Teacher | South Carolina |
| 22 | Sarah M Harman | 17 | Daughter | — | South Carolina |
| 23 | Sallie L Harman | 15 | Son | — | South Carolina |
| 24 | Robert L Harman | 12 | Son | — | South Carolina |
| 25 | Daniel W Ruff | 37 | Head | Farmer | South Carolina |
| 26 | Sallie Ruff | 35 | Wife | — | South Carolina |
| 27 | Walter T Ruff | 8 | Son | — | South Carolina |
| 28 | Sam T Ruff | 7 | Son | — | South Carolina |
| 29 | Clarence Simmons | 33 | Head | Farmer | South Carolina |
| 30 | Willie M Simmons | 20 | Wife | — | South Carolina |
| 31 | William Simmons | 3 | Son | — | South Carolina |
| 32 | Arthur B Price | 43 | Head | Farmer | South Carolina |
| 33 | Eloise R Price | 42 | Wife | — | South Carolina |
| 34 | Arthur B Price | 17 | Son | Laborer | South Carolina |
| 35 | Eloise M Price | 14 | Daughter | — | South Carolina |
| 36 | Lee H Williamson | 51 | Head | Farmer | South Carolina |
| 37 | Alice Williamson | 42 | Wife | — | South Carolina |
| 38 | Leland Williamson | 21 | Son | Laborer | South Carolina |
| 39 | Myrtle B Williamson | 23 | Daughter | — | South Carolina |
| 40 | Alice D Williamson | 21 | Daughter | — | South Carolina |
| 41 | Lula Williamson | 19 | Daughter | — | South Carolina |
| 42 | Mary Williamson | 17 | Daughter | — | South Carolina |
| 43 | Mary Thomas THIS PERSON | 83 | Head | — | South Carolina |
| 44 | Lula Thomas | 44 | Daughter | — | South Carolina |
| 45 | Rebecca Edwards | 74 | Sister | — | South Carolina |
| 46 | — | None | — | — | — |
| 47 | — | None | — | — | — |
| 48 | — | None | — | — | — |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)