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Mary Thomas — 1920 US Census Record
Model Tree available1920 United States Federal Census · Lee, South Carolina
Our Model Tree links this Mary Thomas across the 1920, 1930 and 1940 US Censuses in Lee, South Carolina (XGBoost, ~Confirmed), with identified parents William & Arthur — first a daughter (b.~1913), then head of a 6-person household.
Age 7
b. ~1913
Female
Daughter
Born: South Carolina
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Lee, South Carolina |
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Bishopville Town Ship |
| Est. Birth Year | ~1913 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Wilson Thomas | Daughter | — | 10 | ~1910 |
| Mary Thomas | Daughter | — | 7 | ~1913 |
| Arthur Thomas | Head | — | 28 | ~1892 |
| Arthur Thomas | Son | — | 5 | ~1915 |
| Robert Thomas | Son | — | 3 | ~1917 |
| Ruth Thomas | Spouse | — | 24 | ~1896 |
Census Appearances
1920
Lee, South …
Daughter, age 7
Lee, South Carolina · implied b. ~1913 — 6 household members
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Lee, South …
Daughter, age 16
Lee, South Carolina · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Marie |
| 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 | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Lee-County, South …
Spouse, age 26
Lee-County, South Carolina · implied b. ~1914 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sumter |
| 1935 Residence (County) | Sumter |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 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 Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Thomas (~0.92 confidence) and father Arthur Thomas (~0.92 confidence) and mother Ruth Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Arthur Thomas
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Ruth Thomas
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Thomas
Daughter · 1920 · age 7 · b. ~1913 · South Carolina
★ You are viewing this record
Sibling
Robert Thomas
Sibling · 1920 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Thomas
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilson Thomas
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Lee, South Carolina
Open full size
1920 US Federal Census — Lee, South Carolina
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1701unit:0668)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Davis | 40 | Head | Farmer | South Carolina |
| 2 | Della Davis | 34 | Wife | — | South Carolina |
| 3 | George E Davis | 12 | Son | — | South Carolina |
| 4 | Lillie A Davis | 10 | Daughter | — | South Carolina |
| 5 | Ethel M Davis | 8 | Daughter | — | South Carolina |
| 6 | Idell Davis | 5 | Daughter | — | South Carolina |
| 7 | Earl Davis | 2 | Son | — | South Carolina |
| 8 | Milton Mathis | 24 | Head | Farmer | South Carolina |
| 9 | Lydia Mathis | 21 | Wife | — | South Carolina |
| 10 | James Mathis | 3 | Son | — | South Carolina |
| 11 | Edith Mathis | 1 | Daughter | — | South Carolina |
| 12 | Charles B Lee | 43 | Head | Farmer | South Carolina |
| 13 | Annie L Lee | 32 | Wife | — | South Carolina |
| 14 | Charles B Lee | 14 | Son | — | South Carolina |
| 15 | Lorton Lee | 11 | Son | — | South Carolina |
| 16 | Lizzie Lee | 8 | Daughter | — | South Carolina |
| 17 | Daisy Lee | 5 | Daughter | — | South Carolina |
| 18 | Ush Holland | 40 | Head | — | South Carolina |
| 19 | Willie Holland | 17 | Son | Laborer | South Carolina |
| 20 | Willie Holland | 13 | Son | — | South Carolina |
| 21 | Lorena Holland | 9 | Daughter | — | South Carolina |
| 22 | Bill Simmons | 35 | Head | Laborer | South Carolina |
| 23 | Alice Simmons | 40 | Wife | — | South Carolina |
| 24 | Eugene Philips | 40 | Head | Farmer | South Carolina |
| 25 | Lizzie Philips | 37 | Wife | — | South Carolina |
| 26 | Steline Philips | 15 | Daughter | — | South Carolina |
| 27 | Marie Philips | 13 | Daughter | — | South Carolina |
| 28 | Walter Philips | 11 | Son | — | South Carolina |
| 29 | Scott | 40 | Head | Farmer | South Carolina |
| 30 | Sarah Scott | 16 | Daughter | — | South Carolina |
| 31 | Willie Scott | 16 | Son | — | South Carolina |
| 32 | John Ball | 30 | Head | Farmer | South Carolina |
| 33 | Lula Ball | 22 | Wife | — | South Carolina |
| 34 | James Ball | 4 | Son | — | South Carolina |
| 35 | Arthur Thomas | 28 | Head | Farmer | South Carolina |
| 36 | Ruth Thomas | 24 | Wife | — | South Carolina |
| 37 | Wilson Thomas | 10 | Daughter | — | South Carolina |
| 38 | Mary Thomas THIS PERSON | 7 | Daughter | — | South Carolina |
| 39 | Arthur Thomas | 5 | Son | — | South Carolina |
| 40 | Robert Thomas | 3 | Son | — | South Carolina |
| 41 | Grant Homer | 35 | Head | Farmer | South Carolina |
| 42 | Gertie Homer | 30 | Wife | — | South Carolina |
| 43 | Annie M Homer | 13 | Daughter | — | South Carolina |
| 44 | Ernest Homer | 10 | Son | — | South Carolina |
| 45 | Helen Homer | 7 | Daughter | — | South Carolina |
| 46 | Lizzie Homer | 5 | Daughter | — | South Carolina |
| 47 | Ruth Homer | 3 | Daughter | — | South Carolina |
| 48 | James Homer | 0 | Son | — | South Carolina |
| 49 | Stroll Homer | 15 | Brother | Laborer | South Carolina |
| 50 | Daniel Mclaughlin | 45 | Head | Farmer | South Carolina |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)