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Ruth Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Ruth Lee across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Albert & Lulu — first a daughter (b.~1918), then head of a 2-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Lee |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Utility Clerk |
| Industry | Settlement House |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 455 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Utility Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1918 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Lee | Daughter | — | 22 | ~1918 |
| Benjamin Lee | Head | — | 56 | ~1884 |
Census Appearances
1920
Cook, Illinois
Daughter, age 2
Cook, Illinois · implied b. ~1918 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 12
Cook, Illinois · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 22
Cook-County, Illinois · implied b. ~1918 — 2 household members
| Surname | Lee |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Utility Clerk |
| Industry | Settlement House |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 455 |
| Highest Grade | H-4 |
| 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 Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Lee (~0.92 confidence) and mother Lulu Lee (~0.92 confidence) and father Benjamin Lee (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Lee
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lulu Lee
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Benjamin Lee
b. ~1888
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ruth Lee
Daughter · 1940 · age 22 · b. ~1918 · Illinois
★ 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 — 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-t0627-00990-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillian Wojtow | 23 | Daughter | Typist | Poland |
| 42 | Milton Wojtow | 17 | Son | — | Poland |
| 43 | Marion Wojtow | 10 | Daughter | — | Illinois |
| 44 | Arthur Wacholz | 46 | Head | Shoe Dealer | Illinois |
| 45 | Elsie Wacholz | 40 | Wife | — | Illinois |
| 46 | Robert Wacholz | 19 | Son | Usher | Illinois |
| 47 | Arthur Wacholz | 11 | Son | — | Illinois |
| 48 | William Wacholz | 2 | Son | — | Illinois |
| 49 | William Ziffler | 52 | Head | Tailor | Hungary |
| 50 | Ella Ziffler | 42 | Wife | — | Hungary |
| 51 | Vivian Kraslee | 17 | Daughter | — | Illinois |
| 52 | Meyer Katz | 33 | Head | Manager | Iowa |
| 53 | Clara Katz | 36 | Wife | Clerk | Poland |
| 54 | Barbara Katz | 2 | Daughter | — | Illinois |
| 55 | Maude Whelan | 50 | Servant | Housekeeper | Indiana |
| 56 | Axel Johnson | 56 | Head | Tavern Keeper | Sweden |
| 57 | Agnes Johnson | 41 | Wife | Waitress | Illinois |
| 58 | George Haseldorf | 53 | Servant | Porter | Denmark |
| 59 | Rudolph Schmidt | 50 | Head | Carpet Maker | Netherlands |
| 60 | Katherine Schmidt | 27 | Wife | — | Illinois |
| 61 | Ronald Schmidt | 1 | Son | — | Illinois |
| 62 | Mildred Koski | 43 | Head | Adjustment Clerk | Michigan |
| 63 | Arlene Koski | 24 | Daughter | Waitress | Michigan |
| 64 | Otto Ekdahl | 70 | Head | — | Sweden |
| 65 | Edith Ekdahl | 60 | Wife | — | Sweden |
| 66 | Fritz Froberg | 51 | Head | — | Sweden |
| 67 | Anna Froberg | 53 | Wife | Homemaker | Sweden |
| 68 | Florence Froberg | 23 | Daughter | Stenographer | Illinois |
| 69 | Benjamin Lee | 56 | Head | Painter | Illinois |
| 70 | Ruth Lee THIS PERSON | 22 | Daughter | Utility Clerk | Illinois |
| 71 | Emma Kranz | 64 | Head | — | Germany |
| 72 | Freda Kranz | 29 | Daughter | Millinery Worker | Germany |
| 73 | Charlotte Kranz | 25 | Daughter | Sales Clerk | Germany |
| 74 | Lars Helslo | 44 | Head | — | Norway |
| 75 | Margit Helslo | 41 | Wife | — | Norway |
| 76 | Max Achen | 44 | Lodger | Machine Carver | Norway |
| 77 | Milton Sargent | 23 | Lodger | — | Illinois |
| 78 | Richard Wilson | 60 | Lodger | Carpenter | Illinois |
| 79 | Mikel Nelson | 54 | Lodger | House Painter | Illinois |
| 80 | Ole Thompson | 43 | Lodger | Laborer | Norway |
Pedigree Summary
Ruth
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)