BT
Bertha Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mason-County, Michigan
Our Model Tree links this Bertha Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Mason-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 2-person household.
Age 66
b. ~1874
Female
Head
Born: Wisconsin
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Michigan |
| Surname | Thompson |
| Given Name | Bertha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Manitowoc |
| 1935 Residence (County) | Manitowoc |
| Additional Details | |
| Occupation | Sanitary |
| Industry | Private |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 369 |
| Highest Grade | Hs 4 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Sanitary |
| Township / Ward | Ludington City |
| Est. Birth Year | ~1874 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Helen Thompson | Daughter | — | 38 | ~1902 |
| Bertha Thompson | Head | — | 66 | ~1874 |
Census Appearances
1910
Mason, Michigan
Spouse, age 36
Mason, Michigan · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Years Married | 15 |
| Children Born | 10 |
| Children Living | 2 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Mason, Michigan
Spouse, age 45
Mason, Michigan · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Mason, Michigan
Spouse, age 56
Mason, Michigan · implied b. ~1874 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Bertha D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 21 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Mason-County, Michigan
Head, age 66
Mason-County, Michigan · implied b. ~1874 — 2 household members
| Surname | Thompson |
| Given Name | Bertha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Manitowoc |
| 1935 Residence (County) | Manitowoc |
| Occupation | Sanitary |
| Industry | Private |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 369 |
| Highest Grade | Hs 4 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Thompson
Head · 1940 · age 66 · b. ~1874 · 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 — Mason-County, Michigan
Open full size
1940 US Federal Census — Mason-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01788-00190)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martha Hath | 46 | Head | Superintendent | Germany |
| 2 | Bertha Thompson THIS PERSON | 66 | Head | Sanitary | Wisconsin |
| 3 | Helen Thompson | 38 | Daughter | Baker | Wisconsin |
| 4 | — | None | — | — | — |
| 5 | — | None | — | — | — |
| 6 | — | None | — | — | — |
| 7 | Alton Cloud | 34 | Head | Superintendent | Missouri |
| 8 | Hazel Cloud | 35 | Wife | — | Missouri |
| 9 | Fred Meissner | 71 | Head | — | Switzerland |
| 10 | Anna Mae Meissner | 41 | Daughter | Secretary | Illinois |
| 11 | Edna Meissner | 20 | Daughter | Plainer | Michigan |
| 12 | Albert Mason | 37 | Head | Laborer | Michigan |
| 13 | Josephine Mason | 34 | Wife | — | Michigan |
| 14 | John Dewar | 69 | Head | Laborer | Scotland |
| 15 | Janet Dewar | 69 | Wife | — | Ohio |
| 16 | Mike Darlin | 62 | Head | — | Hungary |
| 17 | Eva Darlin | 60 | Wife | — | Hungary |
| 18 | Charles Darlin | 26 | Son | Draftsman | Illinois |
| 19 | Joseph Shue | 40 | Head | Watch Case Maker | Michigan |
| 20 | Jessie Shue | 41 | Wife | — | Michigan |
| 21 | Doris Shue | 18 | Daughter | — | Illinois |
| 22 | Donna Shue | 16 | Daughter | — | Michigan |
| 23 | Anna Knouls | 75 | Mother-in-law | — | Ohio |
| 24 | Gladys Hagen | 27 | Head | — | Wisconsin |
| 25 | Richard Hagen | 25 | Wife | — | Wisconsin |
| 26 | Harry Lee | 33 | Head | Minister | Tennessee |
| 27 | Faustine Lee | 26 | Wife | — | Tennessee |
| 28 | Betty Lee | 5 | Daughter | — | Michigan |
| 29 | Darwin Lee | 3 | Son | — | Michigan |
| 30 | Alice Shultz | 30 | Head | — | Michigan |
| 31 | Samuel Duncan | 64 | Head | Insurance Manager | Indiana |
| 32 | Edith Duncan | 60 | Wife | — | Michigan |
| 33 | Mildred Duncan | 34 | Daughter | — | Michigan |
| 34 | Fred Weber | 58 | Head | — | Illinois |
| 35 | Edward Thompson | 43 | Head | Manufacturer | Wisconsin |
| 36 | Myrtle Thompson | 37 | Wife | — | Michigan |
| 37 | Robin Thompson | 3 | Son | — | Illinois |
| 38 | Maren Chase | 49 | Head | Laborer | Michigan |
| 39 | Estella Chase | 42 | Wife | — | Michigan |
| 40 | Vernice Chase | 10 | Daughter | — | Michigan |
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)