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Thelma Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Calhoun-County, Alabama
Our Model Tree links this Thelma Thomas across the 1920, 1930 and 1940 US Censuses in Calhoun-County, Alabama (XGBoost, ~Confirmed), with identified parents Charles & Charlie — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calhoun-County, Alabama |
| Surname | Thomas |
| Given Name | Thelma G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 24 |
| 1935 Residence (County) | Calhoun |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Beat 24 |
| Est. Birth Year | ~1918 |
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 Thelma | Age | Birth yr |
|---|---|---|---|---|
| Lizzie Thomas | Spouse | — | 58 | ~1882 |
| Charlie Thomas | Head | — | 58 | ~1882 |
| Thelma Thomas | Daughter | — | 22 | ~1918 |
Census Appearances
1920
Calhoun, Alabama
Daughter, age 2
Calhoun, Alabama · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Calhoun, Alabama
Daughter, age 12
Calhoun, Alabama · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Thelma J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Calhoun-County, Alabama
Daughter, age 22
Calhoun-County, Alabama · implied b. ~1918 — 3 household members
| Surname | Thomas |
| Given Name | Thelma G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 24 |
| 1935 Residence (County) | Calhoun |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Thelma Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Thomas (~0.92 confidence) and father Charlie Thomas (~0.92 confidence) and father W Thomas (~0.92 confidence) and mother Ada Thomas (~0.92 confidence) and mother Lizzie Thomas (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Thomas
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Charlie Thomas
b. ~1882
Source father
● Household
· direct · ~0.92
Father
W Thomas
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Ada Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Lizzie Thomas
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thelma Thomas
Daughter · 1940 · age 22 · b. ~1918 · Alabama
★ 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 — Calhoun-County, Alabama
Open full size
1940 US Federal Census — Calhoun-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00009-01029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joe L. Johnson | 17 | Son | — | Alabama |
| 42 | Edward Johnson | 16 | Son | — | Alabama |
| 43 | Eugene Johnson | 9 | Son | — | Alabama |
| 44 | Betty Mae Johnson | 7 | Daughter | — | Alabama |
| 45 | Eddie L. Clark | 57 | Head | Farming | Alabama |
| 46 | Addie Clark | 54 | Wife | — | Alabama |
| 47 | Robert L. Clark | 31 | Son | Farming | Alabama |
| 48 | Annie Clark | 23 | Daughter | — | Alabama |
| 49 | Edna E. Clark | 20 | Daughter | — | Alabama |
| 50 | Willie L. Clark | 16 | Son | — | Alabama |
| 51 | Linnie Q. Broughton | 72 | Head | — | Alabama |
| 52 | James W. Nance | 29 | Head | Farming | Alabama |
| 53 | Clara B. Nance | 26 | Wife | — | Alabama |
| 54 | Marie W. Nance | 4 | Son | 0 | Alabama |
| 55 | J. Dan Nance | 2 | Son | 0 | Alabama |
| 56 | Howard W. Nance | 26 | Son | — | Alabama |
| 57 | Vinnie Nance | 25 | Daughter-in-law | Farming | Alabama |
| 58 | Eleanor L. Nance | 1 | Daughter | 0 | Alabama |
| 59 | Dave D. Thomas | 60 | Head | Farming | Alabama |
| 60 | Lonnie F. Thomas | 50 | Brother | Laborer | Alabama |
| 61 | Charlie R. Thomas | 58 | Head | Farming | Alabama |
| 62 | Lizzie Q. Thomas | 58 | Wife | — | Alabama |
| 63 | Thelma G. Thomas THIS PERSON | 22 | Daughter | — | Alabama |
| 64 | Harper Grantham | 36 | Head | Laborer | Georgia |
| 65 | Arrie V. Grantham | 35 | Wife | — | Alabama |
| 66 | Melvin J. Grantham | 13 | Son | — | Alabama |
| 67 | Pelham J. Grantham | 12 | Son | — | Alabama |
| 68 | Marvin L. Grantham | 5 | Son | — | Alabama |
| 69 | Ellen Kiker | 71 | Head | — | Alabama |
| 70 | Willard D. Snider | 38 | Head | Farming | Alabama |
| 71 | Drusilla Snider | 34 | Wife | — | Alabama |
| 72 | Burnice Snider | 13 | Daughter | — | Alabama |
| 73 | Harold R. Snider | 5 | Son | — | Alabama |
| 74 | Shirley Snider | 3 | Daughter | — | Alabama |
| 75 | Alice Brown | 62 | Mother-in-law | — | Alabama |
| 76 | Benjamin F. Pike | 73 | Head | — | Tennessee |
| 77 | Lila Pike | 62 | Wife | Farming | Alabama |
| 78 | Weldon Pike | 34 | Son | Laborer | Alabama |
| 79 | Herman Pike | 31 | Son | Laborer | Alabama |
| 80 | L. J. Pike | 25 | Son | Laborer | Alabama |
Pedigree Summary
Thelma
Gen 1 · 5 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)