IT
Irene Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Florence-County, South Carolina
Our Model Tree links this Irene Thomas across the 1920, 1930 and 1940 US Censuses in Florence-County, South Carolina (XGBoost, ~Confirmed), with identified parents Lizzie & William — first a daughter (b.~1917), then head of a 12-person household.
Age 23
b. ~1917
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Florence-County, South Carolina |
| Surname | Thomas |
| Given Name | Irene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Florence City |
| 1935 Residence (County) | Florence |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Florence City |
| Est. Birth Year | ~1917 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Irene | Age | Birth yr |
|---|---|---|---|---|
| Ruby Thomas | Daughter | — | 19 | ~1921 |
| Irene Thomas | Daughter | — | 23 | ~1917 |
| Jefferson Thomas | Head | — | 54 | ~1886 |
| Josephine Thomas | Daughter | — | 21 | ~1919 |
| Dora Thomas | Daughter | — | 15 | ~1925 |
| Jefferson Thomas | Son | — | 24 | ~1916 |
| Miriam Thomas | Daughter | — | 8 | ~1932 |
| Ruth Thomas | Daughter | — | 19 | ~1921 |
| Bernard Thomas | Son | — | 4 | ~1936 |
| James Thomas | Son | — | 13 | ~1927 |
| Henry Thomas | Son | — | 11 | ~1929 |
| Lizzie Thomas | Spouse | — | 50 | ~1890 |
Census Appearances
Daughter, age 1
Florence, South Carolina · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ida May |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| 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
Florence, South …
Daughter, age 12
Florence, South Carolina · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ima Mae |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| 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
Florence-County, South …
Daughter, age 23
Florence-County, South Carolina · implied b. ~1917 — 12 household members
| Surname | Thomas |
| Given Name | Irene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Florence City |
| 1935 Residence (County) | Florence |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Irene Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lizzie Thomas (~0.83 confidence) and father William Thomas (~0.92 confidence) and father Jefferson Thomas (~0.92 confidence) and mother Lizzie Thomas (~0.92 confidence) and mother Bessie Thomas (~0.92 confidence) and father Willie Thomas (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Mother
Lizzie Thomas
b. ~1870
Source mother>mother
● Household
· direct · ~0.83
Father
William Thomas
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Jefferson Thomas
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Lizzie Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Bessie Thomas
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Willie Thomas
b. ~1893
Source father
● Household
· direct · ~0.92
This person
Anchor record
Irene Thomas
Daughter · 1940 · age 23 · b. ~1917 · South Carolina
★ You are viewing this record
Sibling
Jefferson Thomas
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dora Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Thomas
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Miriam Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Thomas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Thomas
Sibling · 1940 · age 19
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
1940 US Federal Census — Florence-County, South Carolina
Open full size
1940 US Federal Census — Florence-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03808-00349)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sam Simmons | 12 | Boarder | — | South Carolina |
| 42 | Leroy Brown | 15 | Grandson | — | South Carolina |
| 43 | Jefferson Thomas | 54 | Head | Laborer | South Carolina |
| 44 | Lizzie Thomas | 50 | Wife | — | South Carolina |
| 45 | Jefferson Thomas | 24 | Son | — | South Carolina |
| 46 | Irene Thomas THIS PERSON | 23 | Daughter | — | South Carolina |
| 47 | Josephine Thomas | 21 | Daughter | Maid | South Carolina |
| 48 | Ruby Thomas | 19 | Daughter | Cook | South Carolina |
| 49 | Ruth Thomas | 19 | Daughter | — | South Carolina |
| 50 | Dora Thomas | 15 | Daughter | — | South Carolina |
| 51 | James Thomas | 13 | Son | — | South Carolina |
| 52 | Henry Thomas | 11 | Son | — | South Carolina |
| 53 | Miriam Thomas | 8 | Daughter | — | South Carolina |
| 54 | Bernard Thomas | 4 | Son | — | South Carolina |
| 55 | Evelyn Q Noble | 33 | Head | — | South Carolina |
| 56 | Paul Noble | 16 | Son | — | South Carolina |
| 57 | Charles B. Brisbane | 36 | Lodger | Brick Mason | South Carolina |
| 58 | Claude Simmons | 36 | Head | Cook | South Carolina |
| 59 | Rosa Simmons | 35 | Wife | — | South Carolina |
| 60 | Helena Simmons | 15 | Daughter | — | South Carolina |
| 61 | James Robinson | 18 | Lodger | Laborer | South Carolina |
| 62 | Leroy Mcelveen | 50 | Head | — | South Carolina |
| 63 | Maggie Mcelveen | 40 | Wife | Cook | South Carolina |
| 64 | Joseph Mcelveen | 23 | Son | Laborer | South Carolina |
| 65 | Robert Mcelveen | 21 | Son | Laborer | South Carolina |
| 66 | Mary Mcelveen | 19 | Daughter | Cook | South Carolina |
| 67 | Samuel Mcelveen | 18 | Son | — | South Carolina |
| 68 | Luther Mcelveen | 17 | Son | — | South Carolina |
| 69 | Martha Mcelveen | 15 | Daughter | — | South Carolina |
| 70 | Asbury Mcelveen | 11 | Son | — | South Carolina |
| 71 | Marion Mcelveen | 9 | Son | — | South Carolina |
| 72 | Fannie Mcelveen | 8 | Daughter | — | South Carolina |
| 73 | Corrie Mcelveen | 7 | Daughter | — | South Carolina |
| 74 | Ethel Mcelveen | 6 | Daughter | — | South Carolina |
| 75 | Ruth Mcelveen | 4 | Daughter | — | South Carolina |
| 76 | Jack Mcelveen | 2 | Son | — | South Carolina |
| 77 | Jane Mae Mcelveen | 1 | Daughter | — | South Carolina |
| 78 | David Stephenson | 32 | Head | Attendant | South Carolina |
| 79 | Alva Stephenson | 28 | Wife | — | South Carolina |
| 80 | Sam Jones | 13 | Son | — | South Carolina |
Related Census Records
Pedigree Summary
Irene + 9 siblings
Gen 1 · 5 parents
~0.92
Gen 2 · 1 grandparents
~0.83
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)