GT
Gertrude Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Joseph-County, Indiana
Our Model Tree links this Gertrude Thomas across the 1920, 1930 and 1940 US Censuses in St.-Joseph-County, Indiana (XGBoost, ~Confirmed), with identified parents Andrew & Laura — first a spouse (b.~1896), then head of a 4-person household.
Age 44
b. ~1896
Female
Spouse
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Joseph-County, Indiana |
| Surname | Thomas |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | South Bend |
| Est. Birth Year | ~1896 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Frank Thomas | Head | — | 45 | ~1895 |
| Walter Thomas | Son | — | 21 | ~1919 |
| Frances Thomas | Daughter | — | 16 | ~1924 |
| Gertrude Thomas | Spouse | — | 44 | ~1896 |
Census Appearances
1920
St Joseph, …
Daughter, age 22
St Joseph, Indiana · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
St Joseph, …
Other, age 33
St Joseph, Indiana · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Gertrude M. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
St.-Joseph-County, Indiana
Spouse, age 44
St.-Joseph-County, Indiana · implied b. ~1896 — 4 household members
| Surname | Thomas |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Gertrude Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Smith (~0.92 confidence) and mother Laura Smith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Smith
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Laura Smith
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Gertrude Thomas
Spouse · 1940 · age 44 · b. ~1896 · Indiana
★ 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 — St.-Joseph-County, Indiana
Open full size
1940 US Federal Census — St.-Joseph-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01133-00262)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ira D. Brown | 62 | Head | Receiving Clerk | Indiana |
| 42 | Bessie E. Brown | 59 | Wife | Clerk | Indiana |
| 43 | Ralph Lydick | 51 | Brother | Maintenance | Indiana |
| 44 | Pearl Lydick | 51 | Wife | — | Indiana |
| 45 | Joe Cierla | 48 | Head | Metal Finishing | Austria |
| 46 | Pearl Cierla | 39 | Wife | — | Wisconsin |
| 47 | Chester Cierla | 17 | Son | — | Wisconsin |
| 48 | James Cierla | 8 | Son | — | Indiana |
| 49 | Angeline Willard | 90 | Head | — | Michigan |
| 50 | Charles Ray | 42 | Son-in-law | Salesman | Washington D.C. |
| 51 | Rita Ray | 41 | Daughter | Bookkeeper | Michigan |
| 52 | Charles Jr. Ray | 14 | Grandson | — | Indiana |
| 54 | Glen Klappenstein | 30 | Head | Ice Cream Maker | Indiana |
| 55 | Anne Klappenstein | 30 | Wife | — | Illinois |
| 56 | Julia Mccarthy | 68 | Head | — | Vermont |
| 57 | Frank A. Thomas | 45 | Head | Cutter | Indiana |
| 58 | Gertrude Thomas THIS PERSON | 44 | Wife | — | Indiana |
| 59 | Walter Thomas | 21 | Son | — | Indiana |
| 60 | Frances Thomas | 16 | Daughter | — | Indiana |
| 61 | Pearl Stephens | 56 | Head | Shipping Dept | Indiana |
| 62 | Grace Stephens | 54 | Wife | — | Indiana |
| 63 | Martha Jean Stephens | 18 | Daughter | Waitress | Indiana |
| 64 | Clement Schindler | 44 | Head | Tool + Gauge Maker | Indiana |
| 65 | Ella Schindler | 34 | Wife | — | Indiana |
| 66 | Betty Lou Schindler | 11 | Daughter | — | Indiana |
| 67 | Mardell Schindler | 9 | Daughter | — | Indiana |
| 68 | Marvin Schindler | 5 | Son | — | Indiana |
| 69 | Robert G. Hood | 56 | Head | Embalmer | Illinois |
| 70 | Mabel E. Hood | 51 | Wife | — | Illinois |
| 71 | Helen L. Hood | 26 | Daughter | — | Illinois |
| 72 | Alfred Foster | 48 | Head | Electrician | Tennessee |
| 73 | Ollie Foster | 52 | Wife | — | Kentucky |
| 74 | Martha Foster | 17 | Daughter | — | Indiana |
| 75 | Fred Spronberg | 48 | Head | Plumber | Germany |
| 76 | Mary Spronberg | 49 | Wife | — | Indiana |
| 77 | Pauline Spronberg | 22 | Daughter | — | Indiana |
| 78 | Frank Spronberg | 21 | Son | Inventory Clerk | Indiana |
| 79 | Albert Spronberg | 20 | Son | Riveter | Indiana |
| 80 | Frederick Spronberg | 18 | Son | — | Indiana |
Pedigree Summary
Gertrude
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)