LN
Lillian Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Lillian Nelson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Andrew & John — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nelson |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Candy company |
| Class of Worker | PW |
| Hours Worked | 7 |
| Income (1939) | 88 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Chicago |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| Violet Nelson | Daughter | — | 21 | ~1919 |
| Andrew Nelson | Head | — | 54 | ~1886 |
| Johanna Nelson | Spouse | — | 60 | ~1880 |
| Lillian Nelson | Daughter | — | 22 | ~1918 |
| Harry Nelson | Son | — | 26 | ~1914 |
Census Appearances
1920
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| 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 11
Cook, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| 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 — 5 household members
| Surname | Nelson |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Candy company |
| Class of Worker | PW |
| Hours Worked | 7 |
| Income (1939) | 88 |
| Highest Grade | Hs 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 Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence) and father Nelson Nelson (~0.92 confidence) and mother Johanna Nelson (~0.92 confidence) and mother Lillian Nelson (~0.92 confidence) and mother Lillie Nelson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Nelson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
John Nelson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Nelson Nelson
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Johanna Nelson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Lillian Nelson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Lillie Nelson
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lillian Nelson
Daughter · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Harry Nelson
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Nelson
Sibling · 1940 · age 21
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-t0627-01005-00301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sadie Boccio | 44 | Wife | New Worker | Italy |
| 2 | Bridgette Boccio | 18 | Daughter | New Worker | Illinois |
| 3 | Carmella Boccio | 14 | Daughter | — | Illinois |
| 4 | Angelina Boccio | 12 | Daughter | — | Illinois |
| 5 | Jasper Boccio | 5 | Son | — | Illinois |
| 6 | Tom Finney | 57 | Head | Laborer | Kentucky |
| 7 | Flora Finney | 53 | Wife | — | Tennessee |
| 8 | Catherine Finney | 13 | Daughter | — | Kentucky |
| 9 | Fred Hartung | 59 | Head | Laborer | Indiana |
| 10 | Anna Hartung | 50 | Wife | — | Illinois |
| 11 | Lillian Hartung | 23 | Daughter | Soda Mixer | Illinois |
| 12 | Clarine Hartung | 20 | Daughter | — | Illinois |
| 13 | Joan M. Hartung | 5 | Daughter | — | Illinois |
| 14 | Annie Duffy | 61 | Head | Flower Maker | Illinois |
| 15 | Sadie Duffy | 58 | Sister | — | Illinois |
| 16 | Here Ends Block 13 And Begins Block 14 | None | — | — | — |
| 17 | George W. Winslow | 70 | Head | — | Kentucky |
| 18 | Billie Winslow | 55 | Wife | — | Illinois |
| 19 | Lloyd Mathieson | 36 | Head | Polisher Buffer | Nebraska |
| 20 | Irene Mathieson | 30 | Wife | Machine Operator | Minnesota |
| 21 | Lloyd Jr. Mathieson | 3 | Son | Same Place | Illinois |
| 22 | Gwen Mathieson | 2 | Son | Same Place | Illinois |
| 23 | Serene Lillo | 24 | Wife sister | Laborer | Minnesota |
| 24 | Iva Lillo | 22 | Wife sister | Laborer | Canada |
| 25 | Angelino Lamendola | 36 | Head | — | Italy |
| 26 | Andrew Nelson | 54 | Head | — | Norway |
| 27 | Johanna Nelson | 60 | Wife | Typist | Norway |
| 28 | Lillian Nelson THIS PERSON | 22 | Daughter | Laborer | Illinois |
| 29 | Harry Nelson | 26 | Son | Hot Packer | Illinois |
| 30 | Violet Nelson | 21 | Daughter | Funeral Director | Illinois |
| 31 | Nick Bove | 54 | Head | — | Italy |
| 32 | Anna Bove | 46 | Wife | Assistant Time Keeper | Illinois |
| 33 | Christine Bove | 29 | Daughter | Script Writer | Illinois |
| 34 | John Bove | 27 | Son | — | Illinois |
| 35 | Fay Bove | 24 | Daughter | Candymaker | Illinois |
| 36 | Steve Depaul | 40 | Head | Beautician | Italy |
| 37 | Jeanette Depaul | 35 | Wife | — | Italy |
| 38 | Peter Depaul | 16 | Son | — | Illinois |
| 39 | Mary Depaul | 20 | Daughter | — | Illinois |
| 40 | Mary Britenteno | 70 | Mother-law | — | Italy |
Pedigree Summary
Lillian + 2 siblings
Gen 1 · 6 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)