RL
Rosa Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Rosa Lewis across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Julius & Percy — first a daughter (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Lewis |
| Given Name | Rosa |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | maid |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Maid |
| Township / Ward | Chicago |
| Est. Birth Year | ~1915 |
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 Rosa | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Lewis | Head | — | 18 | ~1922 |
| Leo Lewis | Son | — | 37 | ~1903 |
| Rosa Lewis | Daughter | — | 25 | ~1915 |
Census Appearances
1920
Cook, Illinois
Daughter, age 3
Cook, Illinois · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Rosa M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Cook, Illinois
Daughter, age 13
Cook, Illinois · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Rosa May |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Cook-County, Illinois
Daughter, age 25
Cook-County, Illinois · implied b. ~1915 — 3 household members
| Surname | Lewis |
| Given Name | Rosa |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | maid |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | H 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 Rosa Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Julius Lewis (~0.92 confidence) and father Percy Penney (~0.92 confidence) and mother Beatrice Lewis (~0.92 confidence) and mother Beatrice Lewis (~0.50 confidence) and mother Mary Penney (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Julius Lewis
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Percy Penney
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Beatrice Lewis
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Beatrice Lewis
b. ~1922
Source mother
● Household
· direct · ~0.5
Mother
Mary Penney
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Rosa Lewis
Daughter · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Leo Lewis
Sibling · 1940 · age 37
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-t0627-00925-00401)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Hill | 42 | Head | Laborer | Arkansas |
| 2 | Bruman Reese | 33 | Lodger | Laborer | Arkansas |
| 3 | Frank Hertz | 39 | Lodger | Laborer | Arkansas |
| 4 | Mamie Hill | 37 | Lodger | None | Tennessee |
| 5 | Lena Neely | 53 | Lodger | None | Tennessee |
| 6 | John Hill | 42 | Lodger | Laborer | Tennessee |
| 7 | Charles Johnson | 40 | Head | Ham Presser | Mississippi |
| 8 | Jessie Johnson | 39 | Wife | None | Tennessee |
| 9 | Virginia Manson | 18 | Daughter | None | Illinois |
| 10 | Mary Petway | 26 | Niece | Maid | Tennessee |
| 11 | Herbert Cole | 25 | Lodger | Bell Boy | Mississippi |
| 12 | Charles Haily | 22 | Head | Washer | Illinois |
| 13 | Cora Haily | 20 | Wife | None | Illinois |
| 14 | Mary Bottoms | 49 | Lodger | None | Kentucky |
| 15 | Elizabeth Haynes | 40 | Lodger | Ironer | Mississippi |
| 16 | James Bottoms | 31 | Lodger | Musician | Kentucky |
| 17 | John Troy | 42 | Head | None | Georgia |
| 18 | Mattie Troy | 46 | Wife | Maid | Tennessee |
| 19 | Sammuel Slatter | 56 | Head | None | Arkansas |
| 20 | Beatrice Williams | 32 | Head | Seamstress | Mississippi |
| 21 | Porter Steel | 60 | Head | None | Mississippi |
| 22 | Musera Atkinson | 34 | Head | Seamstress | Mississippi |
| 23 | Normal Beady | 17 | Daughter | None | Mississippi |
| 24 | Ella Atkinson | 58 | Mother | None | Illinois |
| 25 | Joseph Holmes | 49 | Lodger | Laborer | Louisiana |
| 26 | Florence Holmes | 39 | Lodger | None | Kentucky |
| 27 | Vernon Blackwell | 27 | Lodger | Laborer | Oklahoma |
| 28 | Beatrice Lewis | 18 | Head | None | East Chicago, Ind |
| 29 | Rosa Lewis THIS PERSON | 25 | Daughter | Maid | Indiana |
| 30 | Leo Lewis | 37 | Son | Butcher | Alabama |
| 31 | Clinton Browns | 25 | Head | Maintenance | Arkansas |
| 32 | William Flowers | 25 | Lodger | Laborer | Mississippi |
| 33 | George Fulgham | 25 | Lodger | Waiter | Louisiana |
| 34 | Lee Forester | 30 | Lodger | Porter | Arkansas |
| 35 | Wilbur Forester | 21 | Lodger | Waiter | Arkansas |
| 36 | Robin Adair | 46 | Head | Photograph | Illinois |
| 37 | Rosa Hayes | 49 | Head | Maid | Texas |
| 38 | Vernon Hayes | 25 | Nephew | Messenger | Texas |
| 39 | Hattie Agnew | 50 | Lodger | Maid | Virginia |
| 40 | William Bowman | 40 | Lodger | Porter | Texas |
Pedigree Summary
Rosa + 1 sibling
Gen 1 · 5 parents
~0.84
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)