IT
Ida Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Alabama
Our Model Tree links this Ida Thomas across the 1930 and 1940 US Censuses in Montgomery-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Alabama |
| Surname | Thomas |
| Given Name | Ida M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct 12 Porters |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Election Precinct 12 Porters |
| Est. Birth Year | ~1927 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ida | Age | Birth yr |
|---|---|---|---|---|
| Ora Thomas | Daughter | — | 17 | ~1923 |
| Ida Thomas | Daughter | — | 13 | ~1927 |
| Sara Thomas | Daughter | — | 14 | ~1926 |
| Willie Thomas | Daughter | — | 6 | ~1934 |
| Annie Thomas | Daughter | — | 7 | ~1933 |
| Joseph Thomas | Head | — | 49 | ~1891 |
| John Thomas | Son | — | 9 | ~1931 |
| Gussie Thomas | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Montgomery, Alabama
Daughter, age 6
Montgomery, Alabama · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ida M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Montgomery-County, Alabama
Daughter, age 13
Montgomery-County, Alabama · implied b. ~1927 — 8 household members
| Surname | Thomas |
| Given Name | Ida M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct 12 Porters |
| 1935 Residence (County) | Montgomery |
| Highest Grade | No 5 |
| 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 Ida Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Thomas
Daughter · 1940 · age 13 · b. ~1927 · Alabama
★ You are viewing this record
Sibling
John Thomas
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sara Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ora Thomas
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Thomas
Sibling · 1940 · age 6
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 — Montgomery-County, Alabama
Open full size
1940 US Federal Census — Montgomery-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00070-00035)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hughie (X) Gay | 67 | Head | Farmer | Alabama |
| 2 | Mary A Gay | 65 | Wife | Farm Laborer | Alabama |
| 3 | Doris Pearl Gay | 17 | Neice | — | Alabama |
| 4 | John (X) Lyde | 36 | Head | Farmer | Alabama |
| 5 | Annie M Lyde | 33 | Wife | Farm Laborer | Alabama |
| 6 | Jessie J Lyde | 8 | Son | — | Alabama |
| 7 | Ruby M Lyde | 7 | Daughter | — | Alabama |
| 8 | Rosa M Lyde | 5 | Daughter | — | Alabama |
| 9 | Annie L Lyde | 4 | Daughter | — | Alabama |
| 10 | John L Jr Lyde | 2 | Son | — | Alabama |
| 11 | Bettie J Lyde | 0 | Daughter | — | Alabama |
| 12 | John (X) Wright | 68 | Head | Farmer | Alabama |
| 13 | Josephine Lee | 57 | Partner | — | Alabama |
| 14 | Eula Mccall | 45 | Partner | Farm Laborer | Alabama |
| 15 | L C (X) Frazier | 24 | Head | Farmer | Alabama |
| 16 | Ruth L Frazier | 19 | Wife | Farm Laborer | Alabama |
| 17 | Robert M Frazier | 0 | Son | — | Alabama |
| 18 | Mathie L (X) Frazier | 47 | Head | Farmer | Alabama |
| 19 | Walter Frazier | 30 | Son | Farm Laborer | Alabama |
| 20 | Mattie L Frazier | 9 | Daughter | — | Alabama |
| 21 | Walter C Frazier | 8 | Grandson | — | Alabama |
| 22 | Jessie Strum | 9 | Granddaughter | — | Alabama |
| 23 | Essie M Strum | 7 | Granddaughter | — | Alabama |
| 24 | Adam (X) Strum | 74 | Head | Farm Laborer | Alabama |
| 25 | Hattie Britton | 52 | Partner | — | Georgia |
| 26 | Joseph Thomas | 49 | Head | Farmer | Alabama |
| 27 | Gussie Thomas | 44 | Wife | Farm Laborer | Alabama |
| 28 | Ora M Thomas | 17 | Daughter | Farm Laborer | Alabama |
| 29 | Sara J Thomas | 14 | Daughter | — | Alabama |
| 30 | Ida M Thomas THIS PERSON | 13 | Daughter | — | Alabama |
| 31 | John H Thomas | 9 | Son | — | Alabama |
| 32 | Annie R Thomas | 7 | Daughter | — | Alabama |
| 33 | Willie A Thomas | 6 | Daughter | — | Alabama |
| 34 | Willie Davis | 35 | Head | Farm Laborer | Alabama |
| 35 | Jacob J Spivey | 34 | Head | Truck Driver | Alabama |
| 36 | Sarah E (X) Spivey | 25 | Wife | — | Alabama |
| 37 | James G Spivey | 5 | Son | — | Alabama |
| 38 | Sara J Spivey | 2 | Daughter | — | Alabama |
| 39 | James H Cook | 34 | Head | Truck Driver | Alabama |
| 40 | Elda M (X) Cook | 29 | Wife | — | Alabama |
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)