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Margaret Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Margaret Lee across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents Robert & Margaret — first a daughter (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Lee |
| Given Name | Margaret L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet city |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | saleslady |
| Industry | dept store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 676 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Saleslady |
| Township / Ward | Joliet City |
| Est. Birth Year | ~1914 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Catherine Lee | Daughter | — | 24 | ~1916 |
| Margaret Lee | Daughter | — | 26 | ~1914 |
| Margaret Lee | Head | — | 58 | ~1882 |
| James Murphy | Other | — | 47 | ~1893 |
| Catherine Lowery | Other | — | 79 | ~1861 |
Census Appearances
1920
Will, Illinois
Daughter, age 6
Will, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Daughter, age 16
Will, Illinois · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | LEE |
| Given Name | MARGARET |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | ILLINOIS |
| Father's Birthplace | SCOTLAND |
| Mother's Birthplace | ILLINOIS |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Daughter, age 26
Will-County, Illinois · implied b. ~1914 — 5 household members
| Surname | Lee |
| Given Name | Margaret L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet city |
| 1935 Residence (County) | Will |
| Occupation | saleslady |
| Industry | dept store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 676 |
| 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 Margaret Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Lee (~0.92 confidence) and mother Margaret Lee (~0.92 confidence) and mother Margaret Lee (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Lee
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Margaret Lee
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Margaret Lee
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Lee
Daughter · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Catherine Lee
Sibling · 1940 · age 24
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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00907-01054)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Meyers | 25 | Son | Receiving Clerk | Illinois |
| 2 | Leslie Bahlow | 22 | roomer | Saleslady | Illinois |
| 3 | Margaret Lee | 58 | Head | Fruit Sealer | Illinois |
| 4 | Margaret L. Lee THIS PERSON | 26 | Daughter | Saleslady | Illinois |
| 5 | Catherine R. Lee | 24 | Daughter | Saleslady | Illinois |
| 6 | Catherine Lowery | 79 | Guest | — | Illinois |
| 7 | James P. Murphy | 47 | Brother | Salesman | Illinois |
| 8 | Alexander C. Boyd | 77 | Head | — | Illinois |
| 9 | Jennie E. Boyd | 57 | Wife | — | Illinois |
| 10 | Delia Wolfe | 51 | Head | Housework | Illinois |
| 11 | Earl Wolfe | 36 | Son | Laborer | Illinois |
| 12 | Christine Parker | 63 | Head | Dressmaker | Denmark |
| 13 | William Dahler | 58 | Head | Foreman | Illinois |
| 14 | Clara Dahler | 54 | Wife | — | Illinois |
| 15 | Donald Dahler | 25 | Son | Usher | Illinois |
| 16 | Anna Beach | 70 | Head | — | Kansas |
| 17 | Emmett Cashen | 42 | Head | Dept. Mgr. | Illinois |
| 18 | Della Cashen | 39 | Wife | Saleslady | Illinois |
| 19 | Marjorie Cashen | 20 | Daughter | Clerical Work | Illinois |
| 20 | Virginia Cashen | 18 | Daughter | Saleslady | Illinois |
| 21 | Robert Cashen | 16 | Son | New Worker | Illinois |
| 22 | Vaden L. Hamilton | 48 | Head | Salesman | Illinois |
| 23 | Jennie Hamilton | 47 | Wife | — | Illinois |
| 24 | C. Virgil Archer | 39 | Roomer | Bus Driver | Illinois |
| 25 | Agnes Kravonick | 20 | Roomer | Ironer | Illinois |
| 26 | Anna Blank | 72 | Head | — | Russia |
| 27 | Louis Blank | 39 | Son | President | Illinois |
| 28 | Marie Dorothy | 50 | Maid | Maid | Austria |
| 29 | John Sengenberger | 63 | Head | Clerk | Illinois |
| 30 | Louise Sengenberger | 62 | Wife | — | Illinois |
| 31 | Margaret Billes | 63 | Head | — | Illinois |
| 32 | Daniel J. Smith | 65 | Head | Repairman | Illinois |
| 33 | Mary J. Smith | 58 | Wife | — | Illinois |
| 34 | Benedict D. Smith | 20 | Son | — | Illinois |
| 35 | Joseph Jackson | 52 | Roomer | Wire Drawer | Illinois |
| 36 | Otto De Sandre | 28 | Head | Coaterman | Illinois |
| 37 | Dorothy De Sandre | 20 | Wife | — | Illinois |
| 38 | Frank De Sandre | 1 | Son | — | Illinois |
| 39 | Arnold De Sandre | 0 | Son | — | Illinois |
| 40 | Frank Kramer | 50 | Head | Pressman | Illinois |
Pedigree Summary
Margaret + 1 sibling
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)