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Lillian Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Lillian Harris across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Isaac & Morris — first a daughter (b.~1913), then head of a 7-person household.
Age 27
b. ~1913
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Harris |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Receptionist |
| Industry | Automotive |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 930 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Receptionist |
| Township / Ward | Chicago |
| Est. Birth Year | ~1913 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| Adele Harris | Spouse | — | 45 | ~1895 |
| Louis Harris | Son | — | 17 | ~1923 |
| Harold Harris | Son | — | 22 | ~1918 |
| Morris Harris | Head | — | 47 | ~1893 |
| Isadore Harris | Other | — | 38 | ~1902 |
| Jerome Harris | Son | — | 10 | ~1930 |
| Lillian Harris | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Yiddish |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 18
Cook, Illinois · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Stenographer |
| Industry | Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 27
Cook-County, Illinois · implied b. ~1913 — 7 household members
| Surname | Harris |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Receptionist |
| Industry | Automotive |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 930 |
| Highest Grade | No 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 Lillian Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Isaac Harris (~0.92 confidence) and father Morris Harris (~0.92 confidence) and father Morris Harris (~0.92 confidence) and father Joe Harris (~0.83 confidence) and mother Rose Harris (~0.83 confidence) and mother Adele Harris (~0.92 confidence) and mother Minnie Harris (~0.92 confidence) and mother Sarah Harris (~0.92 confidence). The pedigree spans 2 generations with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Father
Isaac Harris
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Morris Harris
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Morris Harris
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Joe Harris
b. ~1860
Source father>father
● Household
· direct · ~0.83
Mother
Rose Harris
b. ~1860
Source father>mother
● Household
· direct · ~0.83
Mother
Adele Harris
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Minnie Harris
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Sarah Harris
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lillian Harris
Daughter · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
Harold Harris
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Harris
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Harris
Sibling · 1940 · age 17
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-t0627-00969-00853)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Morris Harris | 47 | Head | Maintenance Mgr | Russia |
| 2 | Adele Harris | 45 | Wife | — | Russia |
| 3 | Lillian Harris THIS PERSON | 27 | Daughter | Receptionist | Illinois |
| 4 | Harold Harris | 22 | Son | Bank Clerk | Illinois |
| 5 | Louis Harris | 17 | Son | Order Clerk | Illinois |
| 6 | Jerome Harris | 10 | Son | — | Illinois |
| 7 | Isadore Harris | 38 | Brother | Salesman | Russia |
| 8 | Mayer Seifert | 63 | Head | Cantor | Poland |
| 9 | Mamie Seifert | 58 | Wife | — | Poland |
| 10 | Louis Brody | 40 | Head | Salesman | Russia |
| 11 | Sarah Brody | 40 | Wife | — | Illinois |
| 12 | Norman Brody | 15 | Son | — | Illinois |
| 13 | Erwin Brody | 13 | Son | — | Illinois |
| 14 | Doris Brody | 4 | Daughter | — | Illinois |
| 15 | Granom Lando | 29 | Head | Asst Dean | Russia |
| 16 | Mina Lando | 27 | Wife | — | Palestine |
| 17 | Judha Lando | 2 | Son | — | Ohio |
| 18 | Jacob Frank | 25 | Brother in law | — | Palestine |
| 19 | David Blank | 65 | Head | Salesman | Rumania |
| 20 | Rose Blank | 52 | Wife | — | Rumania |
| 21 | Jacob Roth | 63 | Head | — | Austria |
| 22 | Lena Roth | 58 | Wife | — | Austria |
| 23 | Gitta Roth | 30 | Daughter | Stenographer | Austria |
| 24 | Katie Schubert | 75 | Mother in law | — | Austria |
| 25 | Mandel Schneiderman | 64 | Head | Peddler | Russia |
| 26 | Gertrude Schneiderman | 62 | Wife | — | Russia |
| 27 | Harold Schneiderman | 23 | Son | Bookkeeper | Illinois |
| 28 | Theodore Schneiderman | 21 | Son | Stock Boy | Illinois |
| 29 | David Ziskind | 32 | Head | Packer | Illinois |
| 30 | Ida Ziskind | 31 | Wife | — | Illinois |
| 31 | Murray Ziskind | 1 | Son | — | Illinois |
| 32 | Henry Debeem | 33 | Head | Contractor | Illinois |
| 33 | Mayme Debeem | 22 | Wife | — | Illinois |
| 34 | Lorraine Debeem | 2 | Daughter | — | Illinois |
| 35 | Jean Debeem | 0 | Daughter | — | Illinois |
| 36 | Rosemary Hammel | 15 | Sister in law | — | Illinois |
| 37 | Adolph Postal | 46 | Head | Machinist | Russia |
| 38 | Stella Postal | 36 | Wife | Operator | Russia |
| 39 | Violet Postal | 13 | Daughter | — | Illinois |
| 40 | Morris Stenberg | 42 | Head | Operator | Russia |
Pedigree Summary
Lillian + 3 siblings
Gen 1 · 6 parents
~0.92
Gen 2 · 2 grandparents
~0.83
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)