AT
Ada Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bolivar-County, Mississippi
Our Model Tree links this Ada Thomas across the 1930 and 1940 US Censuses in Bolivar-County, Mississippi (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Female
Daughter
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bolivar-County, Mississippi |
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Bolivar |
| 1935 Residence (County) | Bolivar |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Township / Ward | Beat 4 Town 23 R 6 |
| Est. Birth Year | ~1928 |
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 1940 census.
| Name | Relation to head | Relative to Ada | Age | Birth yr |
|---|---|---|---|---|
| Lee Thomas | Son | — | 11 | ~1929 |
| Ada Thomas | Spouse | — | 23 | ~1917 |
| John Thomas | Son | — | 9 | ~1931 |
| Mitchell Thomas | Head | — | 26 | ~1914 |
| Ada Thomas | Daughter | — | 12 | ~1928 |
| Iora Thomas | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Sunflower, Mississippi
Other, age 1
Sunflower, Mississippi · implied b. ~1929 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ada |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Bolivar-County, Mississippi
Daughter, age 12
Bolivar-County, Mississippi · implied b. ~1928 — 6 household members
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Bolivar |
| 1935 Residence (County) | Bolivar |
| Class of Worker | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Ada Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ada Thomas
Daughter · 1940 · age 12 · b. ~1928 · Mississippi
★ You are viewing this record
Sibling
Lee Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Thomas
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iora Thomas
Sibling · 1940 · age 3
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 — Bolivar-County, Mississippi
Open full size
1940 US Federal Census — Bolivar-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02010-00433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Tom Reeves | 46 | Head | Farm Operator | Mississippi |
| 2 | Mae Reeves | 38 | Wife | — | Mississippi |
| 3 | Tom Reeves | 17 | Son | — | Mississippi |
| 4 | Sarah Reeves | 15 | Daughter | — | Mississippi |
| 5 | Elin Reeves | 12 | Daughter | — | Mississippi |
| 6 | Curtis Reeves | 11 | Son | — | Mississippi |
| 7 | Aaron Reeves | 9 | Son | — | Mississippi |
| 8 | Noel Reeves | 6 | Son | — | Mississippi |
| 9 | Dora Reeves | 4 | Daughter | — | Mississippi |
| 10 | Sam Fields | 20 | Head | Farm Operator | Mississippi |
| 11 | Catherine Fields | 19 | Wife | — | Mississippi |
| 12 | Noah Fields | 0 | Son | — | Mississippi |
| 13 | Ida Reed | 60 | Lodger | — | Mississippi |
| 14 | Adeline Reed | 60 | Lodger | — | Mississippi |
| 15 | Si Hewitt | 48 | Head | Laborer | Mississippi |
| 16 | Jane Hewitt | 58 | Wife | Farm Operator | Mississippi |
| 17 | Katie Hewitt | 56 | Wife | — | Mississippi |
| 18 | Ben Jones | 21 | Son | — | Mississippi |
| 19 | Tom Jones | 15 | Son | — | Mississippi |
| 20 | David Frisby | 17 | Grandchild | — | Mississippi |
| 21 | Robert Frisby | 16 | Grandchild | — | Mississippi |
| 22 | Booker Frisby | 15 | Grandchild | — | Mississippi |
| 23 | Nathan Frisby | 12 | Grandchild | — | Mississippi |
| 24 | Ben Frisby | 11 | Grandchild | — | Mississippi |
| 25 | R E Barton | 12 | Nephew | — | Mississippi |
| 26 | Monroe Davenport | 80 | Sister | — | Mississippi |
| 27 | Mitchell Thomas | 26 | Head | Laborer | Mississippi |
| 28 | Ada Thomas | 23 | Wife | — | Mississippi |
| 29 | Ada Thomas THIS PERSON | 12 | Daughter | — | Mississippi |
| 30 | Lee Thomas | 11 | Son | — | Mississippi |
| 31 | John Thomas | 9 | Son | — | Mississippi |
| 32 | Iora Thomas | 3 | Daughter | — | Mississippi |
| 33 | D C Kogard | 30 | Head | Farm Operator | Mississippi |
| 34 | Della Kogard | 26 | Wife | — | Mississippi |
| 35 | Charlie Kogard | 8 | Son | — | Mississippi |
| 36 | Tom Kogard | 4 | Son | — | Mississippi |
| 37 | Ed Gatty | 55 | Head | Farm Operator | Mississippi |
| 38 | Bessie Gatty | 54 | Wife | — | Mississippi |
| 39 | Henry Neal | 43 | Head | Farm Operator | Mississippi |
| 40 | Callie Neal | 24 | Wife | — | Mississippi |
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)