RC
Ruth Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Joseph-County, Indiana
Our Model Tree links this Ruth Carlson across the 1920, 1930 and 1940 US Censuses in St.-Joseph-County, Indiana (XGBoost, ~Confirmed), with identified parents Henning & Lillian — first a daughter (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Joseph-County, Indiana |
| Surname | Carlson |
| Given Name | Ruth E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | City of South Bend |
| 1935 Residence (County) | St. Joseph |
| Additional Details | |
| Occupation | Sales Clerk |
| Industry | Confectionery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 266 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Sales Clerk |
| Township / Ward | City Of South Bend |
| Est. Birth Year | ~1916 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Carlson | Spouse | — | 45 | ~1895 |
| Canning Carlson | Head | — | 49 | ~1891 |
| Ruth Carlson | Daughter | — | 24 | ~1916 |
| Gustave Carlson | Son | — | 23 | ~1917 |
Census Appearances
1920
St Joseph, …
Daughter, age 4
St Joseph, Indiana · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Indiana |
| Mother Tongue | Swedish |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
St Joseph, …
Daughter, age 14
St Joseph, Indiana · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Ruth E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
St.-Joseph-County, Indiana
Daughter, age 24
St.-Joseph-County, Indiana · implied b. ~1916 — 4 household members
| Surname | Carlson |
| Given Name | Ruth E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | City of South Bend |
| 1935 Residence (County) | St. Joseph |
| Occupation | Sales Clerk |
| Industry | Confectionery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 266 |
| Highest Grade | Hs 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 Ruth Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henning Carlson (~0.92 confidence) and mother Lillian Carlson (~0.92 confidence) and father Canning Carlson (~0.92 confidence) and father Gunning Carlson (~0.92 confidence) and mother Ruth Carlson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henning Carlson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Lillian Carlson
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Canning Carlson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Gunning Carlson
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Ruth Carlson
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Carlson
Daughter · 1940 · age 24 · b. ~1916 · Indiana
★ You are viewing this record
Sibling
Gustave Carlson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
38 people indexed on this census page (nara:1940:m-t0627-01133-00021)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theresa Kosa | 46 | Wife | — | Hungary |
| 2 | Annabelle Kosa | 12 | Daughter | — | Indiana |
| 3 | Marian Kosa | 9 | Daughter | — | Indiana |
| 4 | Della Brunnwalt | 51 | Head | — | Indiana |
| 5 | Isabel Brunnwalt | 26 | Daughter | Inspector | New York |
| 6 | Edward D. Brunnwalt | 11 | Son | — | Indiana |
| 7 | Russell Brown | 42 | Head | Inspector | Indiana |
| 8 | Bertha Brown | 42 | Wife | — | Indiana |
| 9 | Russell Jr. Brown | 12 | Son | Store Clerk | Indiana |
| 10 | Hazel Brown | 14 | Daughter | — | Indiana |
| 11 | Robert Brown | 8 | Son | — | Indiana |
| 12 | Roy Gross | 38 | Head | Drug Clerk | Illinois |
| 13 | Marjorie Gross | 32 | Wife | — | Indiana |
| 14 | Jacquelyn Gross | 11 | Daughter | — | Indiana |
| 15 | Curtis Roy Gross | 5 | Son | — | Indiana |
| 16 | Henry Helms | 39 | Head | Electrician | Indiana |
| 17 | Pearl Helms | 34 | Wife | — | Indiana |
| 18 | Junior Helms | 15 | Son | — | Indiana |
| 20 | Vern Jones | 45 | Head | Fireman | Indiana |
| 21 | Martha Jones | 53 | Wife | — | Colorado |
| 22 | Clarence Meyers | 21 | Step Son | Farm Worker | Colorado |
| 23 | Frank Whitehead | 52 | Head | Carpenter | Michigan |
| 24 | Rose Whitehead | 45 | Wife | — | Ohio |
| 25 | Ward Whitehead | 17 | Son | — | Indiana |
| 26 | Jean Whitehead | 14 | Daughter | — | Indiana |
| 27 | Joan Whitehead | 11 | Daughter | — | Indiana |
| 28 | James Hart | 22 | Head | Chemist | Indiana |
| 29 | Ruth Hart | 22 | Wife | — | Indiana |
| 30 | Tom Hart | 1 | Son | — | Indiana |
| 32 | Ova Thorton | 62 | Head | Assembler | Kentucky |
| 33 | Zola Thorton | 30 | Wife | — | Indiana |
| 34 | William Thorton | 10 | Son | — | Indiana |
| 35 | Constance Thorton | 4 | Daughter | — | Indiana |
| 36 | Dale Thorton | 3 | Son | — | Indiana |
| 37 | Canning Carlson | 49 | Head | Forger | Sweden |
| 38 | Ruth Carlson | 45 | Wife | — | Indiana |
| 39 | Ruth E. Carlson THIS PERSON | 24 | Daughter | Sales Clerk | Indiana |
| 40 | Gustave Carlson | 23 | Son | Apprentice Millwright | Indiana |
Pedigree Summary
Ruth + 1 sibling
Gen 1 · 5 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)