LA
Lillian Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this Lillian Anderson across the 1920, 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed), with identified parents Peter & Hilda — first a daughter (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Anderson |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Occupation | Telephone Operator |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1248 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Telephone Operator |
| Township / Ward | Waukegan City |
| Est. Birth Year | ~1903 |
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 Lillian | Age | Birth yr |
|---|---|---|---|---|
| Lillian Anderson | Daughter | — | 37 | ~1903 |
| Shirley Wood | Daughter | — | 13 | ~1927 |
| Hilda Anderson | Head | — | 72 | ~1868 |
| Adolph Anderson | Son | — | 40 | ~1900 |
Census Appearances
1920
Lake, Illinois
Daughter, age 17
Lake, Illinois · implied b. ~1903 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Helper |
| Industry | Buttons Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lake, Illinois
Daughter, age 27
Lake, Illinois · implied b. ~1903 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Lillian |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | operator |
| Industry | Telephone Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Illinois
Daughter, age 37
Lake-County, Illinois · implied b. ~1903 — 4 household members
| Surname | Anderson |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Occupation | Telephone Operator |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1248 |
| Highest Grade | 8 |
| 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 Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Anderson (~0.92 confidence) and mother Hilda Anderson (~0.92 confidence) and mother Hilda Anderson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Anderson
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Hilda Anderson
b. ~1858
Source mother
● Household
· direct · ~0.92
Mother
Hilda Anderson
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lillian Anderson
Daughter · 1940 · age 37 · b. ~1903 · Illinois
★ You are viewing this record
Sibling
Shirley Wood
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adolph Anderson
Sibling · 1940 · age 40
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 — Lake-County, Illinois
Open full size
1940 US Federal Census — Lake-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00830-00667)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred Stevens | 33 | Head | Machinist | Illinois |
| 2 | Astrid Stevens | 37 | Wife | — | Norway |
| 3 | Richard Stevens | 13 | Son | — | Illinois |
| 4 | Gary Stevens | 11 | Daughter | — | Illinois |
| 5 | Sally Stevens | 6 | Daughter | — | Illinois |
| 6 | Emma Macki | 52 | Head | Laundress | Finland |
| 7 | William Anderson | 42 | Head | Painter Helper | Michigan |
| 8 | Delia Anderson | 35 | Wife | — | Minnesota |
| 9 | Donald Anderson | 12 | Son | — | Wisconsin |
| 10 | Bernard Anderson | 11 | Son | — | Wisconsin |
| 11 | John Mlinar | 49 | Head | Wire Drawer | Illinois |
| 12 | Frances Mlinar | 45 | Wife | — | Illinois |
| 13 | John Mlinar | 6 | Son | — | Illinois |
| 14 | Victor Ristler | 49 | Head | Water Meter Reader | Indiana |
| 15 | Dagmar Ristler | 48 | Wife | — | Illinois |
| 16 | Lloyd Ristler | 27 | Son | Accountant | Illinois |
| 17 | Cleora Ristler | 22 | Daughter | Bookkeeper | Illinois |
| 18 | John J. Zunke | 70 | Head | Lever Man | Wisconsin |
| 19 | Anna Zunke | 66 | Wife | — | Wisconsin |
| 20 | Margaret Zunke | 23 | Daughter | Moulder | Wisconsin |
| 21 | Marianne Zunke | 7 | Granddaughter | — | Illinois |
| 22 | Emma Francke | 71 | Head | — | Germany |
| 23 | Ella Francke | 49 | Daughter | Registrar | Wisconsin |
| 24 | Tillie Francke | 45 | Daughter | Billing Machine Operator | Illinois |
| 25 | Ernest Francke | 40 | Son | Assistant Engineer | Illinois |
| 26 | Herbert Francke | 30 | Son | Switchman | Illinois |
| 27 | Hilda Anderson | 72 | Head | — | Finland |
| 28 | Adolph Anderson | 40 | Son | Laborer | Illinois |
| 29 | Lillian Anderson THIS PERSON | 37 | Daughter | Telephone Operator | Illinois |
| 30 | Shirley Wood | 13 | Daughter | — | Illinois |
| 31 | John Peterson | 63 | Head | — | New York |
| 32 | Blanche Peterson | 67 | Wife | — | Germany |
| 33 | Bernard Vanderventer | 36 | Head | Mail Carrier | Wisconsin |
| 34 | Anna Vanderventer | 36 | Wife | — | Illinois |
| 35 | Donald Vanderventer | 12 | Son | — | Illinois |
| 36 | Richard Vanderventer | 10 | Son | — | Illinois |
| 37 | Marilyn Vanderventer | 7 | Daughter | — | Illinois |
| 38 | Alex Tremer | 57 | Head | Master Mechanic | Wisconsin |
| 39 | Mary Tremer | 50 | Wife | — | Illinois |
| 40 | George Layton | 28 | Head | Truck Driver | Wisconsin |
Pedigree Summary
Lillian + 2 siblings
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)