IT
Isaac Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · East-Feliciana-County, Louisiana
Our Model Tree links this Isaac Thomas across the 1920, 1930 and 1940 US Censuses in East-Feliciana-County, Louisiana (XGBoost, ~Confirmed), with identified parents Wilford & Lizzie — first a head (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | East-Feliciana-County, Louisiana |
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Police Jury Ward 5 |
| 1935 Residence (County) | E. Feliciana |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Farmer |
| Township / Ward | Police Jury Ward 5 |
| Est. Birth Year | ~1909 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Robert Thomas | Son | — | ~1940 | |
| Leola Thomas | Daughter | — | 3 | ~1937 |
| Leroy Thomas | Son | — | 5 | ~1935 |
| Isaac Thomas | Head | — | 31 | ~1909 |
| Viola Thomas | Spouse | — | 22 | ~1918 |
Census Appearances
1920
East Feliciana, …
Son, age 11
East Feliciana, Louisiana · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
East Baton …
Son, age 22
East Baton Rouge, Louisiana · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Laborer |
| Industry | Oil refinery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
East-Feliciana-County, Louisiana
Head, age 31
East-Feliciana-County, Louisiana · implied b. ~1909 — 5 household members
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Police Jury Ward 5 |
| 1935 Residence (County) | E. Feliciana |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Isaac Thomas across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Wilford Thomas (~0.92 confidence) and mother Lizzie Thomas (~0.92 confidence) and mother Callie Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Wilford Thomas
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Lizzie Thomas
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Callie Thomas
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Isaac Thomas
Head · 1940 · age 31 · b. ~1909 · Louisiana
★ 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 — East-Feliciana-County, Louisiana
Open full size
1940 US Federal Census — East-Feliciana-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01399-00873)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alberta Cooks | 25 | Sister | — | Louisiana |
| 2 | John B. W. Bankston | 37 | Head | Farmer | Louisiana |
| 3 | Mariah Bankston | 35 | Wife | Laborer | Louisiana |
| 4 | Odeal Bankston | 11 | Daughter | — | Louisiana |
| 5 | Elizabeth Bankston | 10 | Daughter | — | Louisiana |
| 6 | Andrew Williams | 22 | Head | Farmer | Louisiana |
| 7 | Lucinda Williams | 24 | Wife | Laborer | Mississippi |
| 8 | Banks Caine | 24 | Head | Farmer | Louisiana |
| 9 | Amanda Caine | 23 | Wife | Laborer | Louisiana |
| 10 | Lee Andrew Caine | 3 | Son | — | Louisiana |
| 11 | Annie B. Caine | 1 | Daughter | — | Louisiana |
| 12 | Edith Caine | 0 | Daughter | — | Louisiana |
| 13 | Paul Caine | 16 | Brother | Laborer | Louisiana |
| 14 | Salina Caine | 14 | Sister | — | Louisiana |
| 15 | Caroline Williams | 55 | Head | Farmer | Louisiana |
| 16 | Ed. Williams | 24 | Son | Laborer | Louisiana |
| 17 | Nettie Williams | 19 | Daughter | Laborer | Louisiana |
| 18 | Helen Williams | 17 | Daughter | Laborer | Louisiana |
| 19 | George Williams | 14 | Son | — | Louisiana |
| 20 | Jeanette Williams | 2 | Daughter | — | Louisiana |
| 21 | Mallie Sanford | 30 | Head | Laborer | Louisiana |
| 22 | Andrew Spears | 27 | Head | Farmer | Louisiana |
| 23 | Willie Edna Spears | 21 | Wife | Laborer | Louisiana |
| 24 | Herman Spears | 4 | Son | — | Louisiana |
| 25 | Asalie Spears | 2 | Daughter | — | Louisiana |
| 26 | Kirk Theophile | 38 | Head | Farmer | Louisiana |
| 27 | Polina Theophile | 38 | Wife | Laborer | Louisiana |
| 28 | Isaiah Theophile | 17 | Son | Laborer | Louisiana |
| 29 | Al J. Theophile | 15 | Son | — | Louisiana |
| 30 | Frank Theophile | 13 | Son | — | Louisiana |
| 31 | Johnnie Mae Theophile | 9 | Daughter | — | Louisiana |
| 32 | T. J. Theophile | 7 | Son | — | Louisiana |
| 33 | Wilton Theophile | 5 | Son | — | Louisiana |
| 34 | Ruby Lee Theophile | 0 | Daughter | — | Louisiana |
| 35 | Isaac Thomas THIS PERSON | 31 | Head | Farmer | Louisiana |
| 36 | Viola Thomas | 22 | Wife | Laborer | Louisiana |
| 37 | Leroy Thomas | 5 | Son | — | Louisiana |
| 38 | Leola Thomas | 3 | Daughter | — | Louisiana |
| 39 | Robert Thomas | 0 | Son | — | Louisiana |
| 40 | Simon Washington | 25 | Head | Farmer | Louisiana |
Pedigree Summary
Isaac
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 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)