RL
Ruth Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ruth Larson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Jacob & Alexandra — first a daughter (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Larson |
| Given Name | Ruth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | clerk |
| Industry | Insurance Broker |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Chicago |
| Est. Birth Year | ~1911 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Esther Carlson | Head | — | 52 | ~1888 |
| Ruth Larson | Daughter | — | 29 | ~1911 |
| Robert Carlson | Son | — | 20 | ~1920 |
Census Appearances
1920
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1913 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Norway |
| Mother's Birthplace | Sweden |
| Can Read | No |
| Can Write | No |
| Mother Tongue | Swedish |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 18
Cook, Illinois · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Norway |
| Mother's Birthplace | Sweden |
| Occupation | Operator |
| Industry | Telephone Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 29
Cook-County, Illinois · implied b. ~1911 — 3 household members
| Surname | Larson |
| Given Name | Ruth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | clerk |
| Industry | Insurance Broker |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jacob Larsen (~0.92 confidence) and mother Alexandra Larsen (~0.92 confidence) and mother Esther Carlson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Larsen
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Alexandra Larsen
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Esther Carlson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Larson
Daughter · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
Sibling
Robert Carlson
Sibling · 1940 · age 20
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00947-00232)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Maire Szypplowa | 21 | daughter | Solicitor | Illinois |
| 42 | Joseph Szypplowa | 19 | son | Stock-Man | Illinois |
| 43 | Andrew Schraier | 29 | Head | Truck Driver | Illinois |
| 44 | Mildred Schraier | 27 | Wife | — | Ohio |
| 45 | Patricia Schraier | 3 | daughter | — | Illinois |
| 46 | Robert Twaddell | 52 | Head | Wood Finisher | Kentucky |
| 47 | Ella Twaddell | 52 | Wife | — | Illinois |
| 48 | Dorothy Twaddell | 20 | daughter | Analyzer | Illinois |
| 49 | Frank Wassock | 52 | Head | Laborer | Illinois |
| 50 | Doritta Wassock | 51 | Wife | — | Illinois |
| 51 | June Wassock | 7 | daughter | — | Illinois |
| 52 | Antone Vrahli | 54 | Head | — | Lithuania |
| 53 | John Simaria | 37 | Head | Laborer | Philippines |
| 54 | Harriet Simaria | 26 | Wife | — | Poland |
| 55 | Sylvestre S. Suero | 37 | lodger | Laborer | Philippines |
| 56 | Mary Glennon | 73 | Head | — | Eire |
| 57 | John Glennon | 54 | son | Shipping Clerk | Illinois |
| 58 | Lawrence Glennon | 39 | son | Machinist | Illinois |
| 59 | Cornelius Glennon | 35 | son | Clerk | Illinois |
| 60 | Margaret Glennon | 33 | daughter | Switchboard Operator | Illinois |
| 61 | Catherine Fluffy | 52 | daughter | Forelady | Illinois |
| 62 | Otto Hing | 47 | Head | Tool + Die Maker | Illinois |
| 63 | Marie Hing | 47 | Wife | — | Illinois |
| 64 | Otto Jr. Hing | 19 | son | Butcher Boy | Illinois |
| 65 | Gladys Hing | 18 | daughter | — | Illinois |
| 66 | Mary Ann Hing | 7 | daughter | — | Illinois |
| 67 | William Kohut | 31 | Son-in-law | Machinist | Texas |
| 68 | Evelyn Kohut | 27 | daughter | — | Illinois |
| 69 | Jeanette Kohut | 1 | grand-daughter | — | Illinois |
| 70 | Henrietta Hing | 71 | Mother | — | Germany |
| 71 | Jacob Halesta | 42 | Head | Upholsterer | Russia |
| 72 | Mabel Halesta | 38 | Wife | Punch Press Operator | Illinois |
| 73 | John Petrazek | 44 | Head | Butcher | Poland |
| 74 | Veronica Petrazek | 34 | Wife | — | Poland |
| 75 | Chester Petrazek | 22 | son | Butcher | Illinois |
| 76 | Jean Petrazek | 20 | daughter | Assembler | Illinois |
| 77 | Florence Petrazek | 16 | daughter | — | Illinois |
| 78 | Esther Carlson | 52 | Head | Seamstress | Sweden |
| 79 | Robert Carlson | 20 | son | Clerk | Minnesota |
| 80 | Ruth Larson THIS PERSON | 29 | daughter | Clerk | Illinois |
Pedigree Summary
Ruth + 1 sibling
Gen 1 · 3 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)