BT
Bertha Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shiawassee-County, Michigan
Our Model Tree links this Bertha Thomas across the 1930 and 1940 US Censuses in Shiawassee-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1903), then head of a 14-person household.
Age 37
b. ~1903
Female
Spouse
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Shiawassee-County, Michigan |
| Surname | Thomas |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Hazelton Township |
| 1935 Residence (County) | Shiawassee |
| Additional Details | |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Hazelton Township |
| Est. Birth Year | ~1903 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Philip Thomas | Son | — | 2 | ~1938 |
| Bertha Thomas | Spouse | — | 37 | ~1903 |
| Shirley Thomas | Daughter | — | 5 | ~1935 |
| Peggy Thomas | Daughter | — | 15 | ~1925 |
| Phyllis Thomas | Daughter | — | 18 | ~1922 |
| William Mcaninch | Son | — | 14 | ~1926 |
| Robert Thomas | Son | — | 7 | ~1933 |
| Leslie Ormsby | Other | — | 57 | ~1883 |
| Alfred Thomas | Son | — | 13 | ~1927 |
| Harold Thomas | Son | — | 16 | ~1924 |
| Richard Thomas | Son | — | 8 | ~1932 |
| Philip Thomas | Head | — | 38 | ~1902 |
| Wilma Thomas | Daughter | — | 10 | ~1930 |
| Allen Thomas | Son | — | 3 | ~1937 |
Census Appearances
1930
Shiawassee, Michigan
Other, age 29
Shiawassee, Michigan · implied b. ~1901 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Bertha A. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 18 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Shiawassee-County, Michigan
Spouse, age 37
Shiawassee-County, Michigan · implied b. ~1903 — 14 household members
| Surname | Thomas |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Hazelton Township |
| 1935 Residence (County) | Shiawassee |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Thomas
Spouse · 1940 · age 37 · b. ~1903 · Michigan
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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 — Shiawassee-County, Michigan
Open full size
1940 US Federal Census — Shiawassee-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01820-00327)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Kusener|Kusner | 15 | Daughter | — | Michigan |
| 42 | Mildred Kusener|Kusner | 12 | Daughter | — | Michigan |
| 43 | Dolores Kusener|Kusner | 4 | Daughter | — | Michigan |
| 44 | Philip J. Thomas | 38 | Head | Grinder | Michigan |
| 45 | Bertha Thomas THIS PERSON | 37 | Wife | — | Michigan |
| 46 | Phyllis Thomas | 18 | Daughter | — | Michigan |
| 47 | Harold Thomas | 16 | Son | Farmer | Michigan |
| 48 | Peggy Thomas | 15 | Daughter | — | Michigan |
| 49 | Alfred Thomas | 13 | Son | — | Michigan |
| 50 | Wilma Thomas | 10 | Daughter | — | Michigan |
| 51 | Richard Thomas | 8 | Son | — | Michigan |
| 52 | Robert Thomas | 7 | Son | — | Michigan |
| 53 | Shirley Thomas | 5 | Daughter | — | Michigan |
| 54 | Allen Thomas | 3 | Son | — | Michigan |
| 55 | Philip Jr. Thomas | 2 | Son | — | Michigan |
| 56 | Leslie Ormsby | 57 | Lodger | Farmer | Michigan |
| 57 | William Mcaninch | 14 | Son | Farmer | Michigan |
| 58 | Charles Potter | 74 | Head | Farmer | New York |
| 59 | Reta Latham | 70 | Servant | Housekeeper | Illinois |
| 60 | Lloyd Potter | 37 | Head | Farmer | Michigan |
| 61 | Mary Potter | 33 | Wife | — | Michigan |
| 62 | Charles Potter | 15 | Son | Farmer | Michigan |
| 63 | Faye Potter | 14 | Daughter | — | Michigan |
| 64 | Richard Potter | 12 | Son | — | Michigan |
| 65 | Mildred Potter | 10 | Daughter | — | Michigan |
| 66 | Gerald Potter | 4 | Son | — | Michigan |
| 67 | James Potter | 1 | Son | — | Michigan |
| 68 | Leo Vandeglasen|Vandeglasen | 49 | Head | Grinder | Michigan |
| 69 | Edna Vandeglasen|Vandeglasen | 46 | Wife | — | Michigan |
| 70 | Bruce Vandeglasen|Vandeglasen | 15 | Son | — | Michigan |
| 71 | Wayne Vandeglasen|Vandeglasen | 12 | Son | — | Michigan |
| 72 | William Vandeglasen|Vandeglasen | 8 | Son | — | Michigan |
| 73 | Jean Vandeglasen|Vandeglasen | 7 | Daughter | — | Michigan |
| 74 | Dale Vandeglasen|Vandeglasen | 6 | Son | — | Michigan |
| 75 | Dean Vandeglasen|Vandeglasen | 3 | Son | — | Michigan |
| 76 | John Vandeglasen|Vandeglasen | 1 | Son | — | Michigan |
| 77 | John Rudd | 57 | Head | Farmer | Michigan |
| 78 | Katherine Rudd | 57 | Wife | — | Michigan |
| 79 | Charles Rudd | 16 | Son | Farmer | Michigan |
| 80 | Rudy Rudd | 13 | Son | Farmer | Michigan |
Related Census Records
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)