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Margaret Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buchanan-County, Missouri
Our Model Tree links this Margaret Thomas across the 1920, 1930 and 1940 US Censuses in Buchanan-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 6-person household.
Age 43
b. ~1897
Female
Spouse
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Buchanan-County, Missouri |
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | St. Joseph City |
| 1935 Residence (County) | Buchanan |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | St Joseph City |
| Est. Birth Year | ~1897 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Ellen Thomas | Daughter | — | 17 | ~1923 |
| William Thomas | Head | — | 73 | ~1867 |
| Herman Thomas | Son | — | 4 | ~1936 |
| William Thomas | Son | — | 20 | ~1920 |
| Lawrence Thomas | Son | — | 9 | ~1931 |
| Margaret Thomas | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Buchanan, Missouri
Spouse, age 24
Buchanan, Missouri · implied b. ~1896 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Buchanan, Missouri
Other, age 35
Buchanan, Missouri · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 23 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Buchanan-County, Missouri
Spouse, age 43
Buchanan-County, Missouri · implied b. ~1897 — 6 household members
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | St. Joseph City |
| 1935 Residence (County) | Buchanan |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Margaret 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
Margaret Thomas
Spouse · 1940 · age 43 · b. ~1897 · Missouri
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Buchanan-County, Missouri
Open full size
1940 US Federal Census — Buchanan-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02089-00518)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary J. O'Connor | 10 | Daughter | — | Missouri |
| 2 | John R. Jones | 31 | Head | Belt Loader | Iowa |
| 3 | Jessie M. Jones | 31 | Wife | — | Arizona |
| 4 | William E. Allen | 52 | Head | Section Foreman | Mississippi |
| 5 | Margaret Allen | 46 | Wife | — | Oklahoma |
| 6 | Ralph E. Allen | 26 | Son | Laborer | Missouri |
| 7 | William D. Allen | 21 | Son | Janitor Helper | Missouri |
| 8 | Ruby Faye Allen | 19 | Daughter | Page | Missouri |
| 9 | John G. S. Mccown | 49 | Head | Car Inspector | Iowa |
| 10 | Mary E. Mccown | 42 | Wife | Garment Worker | Missouri |
| 11 | Billy J. Mccown | 17 | Son | — | Missouri |
| 12 | Burman D. Caton | 52 | Head | Inspector | Missouri |
| 13 | Mary E. Caton | 56 | Wife | — | Kansas |
| 14 | Burman D. Jr. Caton | 22 | Son | — | Missouri |
| 15 | Marcus W. Caton | 18 | Son | — | Colorado |
| 16 | Elizabeth A. Caton | 17 | Daughter | — | Illinois |
| 17 | George H. Murphy | 45 | Head | Veterinary Inspector | Illinois |
| 18 | Jessie C. Murphy | 34 | Wife | — | Kansas |
| 19 | Norma L. Murphy | 15 | Daughter | — | Kansas |
| 20 | George H. Jr. Murphy | 10 | Son | — | Illinois |
| 21 | Barbara R. Murphy | 6 | Daughter | — | Missouri |
| 22 | Claude A. Martin | 36 | Head | Millwright | Missouri |
| 23 | Edna M. Martin | 30 | Wife | — | Missouri |
| 24 | Stepheny B. Martin | 6 | Daughter | — | Missouri |
| 25 | Beverly K. Martin | 4 | Daughter | — | Missouri |
| 26 | Archie W. Fower | 45 | Head | Stone Mason Helper | Missouri |
| 27 | Veta A. Fower | 43 | Wife | — | Missouri |
| 28 | Archie W. W. Fower | 25 | Son | Laborer | Missouri |
| 29 | William H. Thomas | 73 | Head | Watchman | Nebraska |
| 30 | Margaret Thomas THIS PERSON | 43 | Wife | — | Kansas |
| 31 | William E. Thomas | 20 | Son | Supervisor | Missouri |
| 32 | Ellen N. Thomas | 17 | Daughter | Housekeeper | Missouri |
| 33 | Lawrence J. Thomas | 9 | Son | — | Missouri |
| 34 | Herman L. Thomas | 4 | Son | — | Missouri |
| 35 | Aaron L. Montgomery | 35 | Head | Carpenter | Missouri |
| 36 | Effie L. Montgomery | 34 | Wife | — | Oklahoma |
| 37 | Opal L. Montgomery | 16 | Daughter | — | Missouri |
| 38 | — | None | — | — | — |
| 39 | Joseph Sanger | 55 | Head | Roundhouse Helper | Russia |
| 40 | Theresa M. Sanger | 50 | Wife | — | 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)