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Bertha Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Doniphan-County, Kansas
Our Model Tree links this Bertha Thomas across the 1920, 1930 and 1940 US Censuses in Doniphan-County, Kansas (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 6-person household.
Age 65
b. ~1875
Female
Spouse
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Doniphan-County, Kansas |
| Surname | Thomas |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Highland |
| 1935 Residence (County) | Doniphan |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Highland |
| Est. Birth Year | ~1875 |
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 Bertha | Age | Birth yr |
|---|---|---|---|---|
| Lula Thomas | Other | — | 11 | ~1929 |
| Bertha Thomas | Spouse | — | 65 | ~1875 |
| Aris Thomas | Son | — | 22 | ~1918 |
| Richard Thomas | Head | — | 75 | ~1865 |
| James Thomas | Other | — | 8 | ~1932 |
| Blanche Thomas | Other | — | 13 | ~1927 |
Census Appearances
1920
Doniphan, Kansas
Spouse, age 46
Doniphan, Kansas · implied b. ~1874 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Doniphan, Kansas
Spouse, age 54
Doniphan, Kansas · implied b. ~1876 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 20 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Doniphan-County, Kansas
Spouse, age 65
Doniphan-County, Kansas · implied b. ~1875 — 6 household members
| Surname | Thomas |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Highland |
| 1935 Residence (County) | Doniphan |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Bertha Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Bertha Thomas
Spouse · 1940 · age 65 · b. ~1875 · Kansas
★ 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 — Doniphan-County, Kansas
Open full size
1940 US Federal Census — Doniphan-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01229-00126)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George H Drake | 30 | Head | Laborer | Kansas |
| 42 | Laurene E Drake | 23 | Wife | — | Kansas |
| 43 | Tom Hathaway | 70 | Head | — | Kentucky |
| 44 | Charles Brooks | 50 | In-law | Laborer | Tennessee |
| 45 | Sara Brooks | 47 | Daughter | — | Kentucky |
| 46 | Charles Jr Brooks | 19 | Grandson | — | Kansas |
| 47 | Delmer D Painter | 43 | Head | Laborer | Kansas |
| 48 | Margaret W Painter | 24 | Wife | — | Kansas |
| 49 | Patricia E Painter | 2 | Daughter | — | Kansas |
| 50 | Claude L Leibron | 36 | Head | Clerk | Kansas |
| 51 | Josephine L Leibron | 31 | Wife | — | Kansas |
| 52 | Claude L Jr Leibron | 10 | Son | — | Kansas |
| 53 | Nellie J Leibron | 8 | Daughter | — | Kansas |
| 54 | Roger D Leibron | 1 | Son | — | Kansas |
| 55 | Lu Vaughn Blankenali|Blankenalip | 30 | Head | Salesman | Missouri |
| 56 | Nannie A Blankenali|Blankenalip | 28 | Wife | — | Kansas |
| 57 | Lu Vaughn Blankenali|Blankenalip | 5 | Son | — | Kansas |
| 58 | George R Elliott | 74 | Head | — | Missouri |
| 59 | Elizabeth Elliott | 67 | Wife | — | India |
| 60 | Jack L Elliott | 23 | Son | Farm | Missouri |
| 61 | Garnett E Moore | 34 | Son-in-law | Cook | Missouri |
| 62 | Dorothy G Moore | 27 | Daughter | — | Missouri |
| 63 | Richard Thomas | 75 | Head | — | Missouri |
| 64 | Bertha Thomas THIS PERSON | 65 | Wife | — | South Dakota |
| 65 | Aris D Thomas | 22 | Son | Day Laborer | Kansas |
| 66 | Blanche Thomas | 13 | Daughter-in-law | — | Kansas |
| 67 | Lula R Thomas | 11 | Granddaughter | — | Nebraska |
| 68 | James E Thomas | 8 | Grandson | — | Kansas |
| 69 | Ernie F Barber | 27 | Head | Manager | Kansas |
| 70 | Ezra E Barber | 23 | Wife | — | Tenn |
| 71 | Joan Barber | 4 | Daughter | — | Kansas |
| 72 | Dean F Barber | 2 | Son | — | Kansas |
| 73 | John H Tilton | 34 | Head | Road Construction | Kansas |
| 74 | Hettie E Tilton | 33 | Wife | — | Kansas |
| 75 | Wayne E Tilton | 15 | Son | — | Kansas |
| 76 | Virginia D Tilton | 8 | Daughter | — | Kansas |
| 77 | William H Woeland | 30 | Head | Assistant | Missouri |
| 78 | Helen D Woeland | 23 | Wife | — | Kansas |
| 79 | Charles Star | 70 | Head | Laborer | Kansas |
| 80 | Fred L Stes | 44 | Head | Rock Quarry | Kansas |
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)