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Lillian Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Indiana
Our Model Tree links this Lillian Williams across the 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Indiana |
| Surname | Williams |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Gary (City) |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Gary City |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| Lillian Williams | Daughter | — | 10 | ~1930 |
| Dorothy Williams | Daughter | — | 15 | ~1925 |
| Irene Williams | Daughter | — | 16 | ~1924 |
| Louis Williams | Head | — | 47 | ~1893 |
| John Williams | Son | — | 12 | ~1928 |
| Robert Williams | Son | — | 18 | ~1922 |
| Richard Williams | Son | — | 6 | ~1934 |
| George Williams | Son | — | 21 | ~1919 |
| Ronald Williams | Son | — | 2 | ~1938 |
| Mary Williams | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Lake, Indiana
Daughter, age
Lake, Indiana · implied b. ~1930 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Yugoslavia |
| Mother's Birthplace | Illinois |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Lake-County, Indiana
Daughter, age 10
Lake-County, Indiana · implied b. ~1930 — 10 household members
| Surname | Williams |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Gary (City) |
| 1935 Residence (County) | Lake |
| Highest Grade | No 5 |
| 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 Lillian Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lillian Williams
Daughter · 1940 · age 10 · b. ~1930 · Indiana
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Sibling
Ronald Williams
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Williams
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Williams
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Williams
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Williams
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 — Lake-County, Indiana
Open full size
1940 US Federal Census — Lake-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01120-00995)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph A Riley | 65 | Head | Chipper | Alabama |
| 2 | Annie Riley | 61 | Wife | — | Florida |
| 3 | Arthur Riley | 35 | Son | Chauffeur | Florida |
| 4 | Jacob Kradye | 50 | Head | Single-Boy | Poland |
| 5 | Paty Kradye | 40 | Wife | — | Poland |
| 6 | Theodore Kradye | 13 | Son | — | Pennsylvania |
| 7 | Edmund Kradye | 12 | Son | — | Pennsylvania |
| 8 | Bruno Kradye | 10 | Son | — | Pennsylvania |
| 9 | Louis Williams | 47 | Head | Chipper | Bulgaria |
| 10 | Mary Williams | 44 | Wife | — | Illinois |
| 11 | George Williams | 21 | Son | Clerk | Indiana |
| 12 | Robert Williams | 18 | Son | Laborer | Indiana |
| 13 | Irene Williams | 16 | Daughter | — | Indiana |
| 14 | Dorothy Williams | 15 | Daughter | — | Indiana |
| 15 | John Williams | 12 | Son | — | Indiana |
| 16 | Lillian Williams THIS PERSON | 10 | Daughter | — | Indiana |
| 17 | Richard Williams | 6 | Son | — | Indiana |
| 18 | Ronald Williams | 2 | Son | — | Indiana |
| 19 | Louise Morgan | 54 | Head | — | Texas |
| 20 | Vertilla Mccauley | 30 | Daughter | — | New Mexico |
| 21 | Mozella Taylor | 19 | Granddaughter | — | Oregon |
| 22 | Edward Taylor | 25 | Son | Laborer | Kentucky |
| 23 | Mary Smith | 91 | Mother | — | Texas |
| 24 | Roy Linsley | 29 | Lodger | Laborer | Kentucky |
| 25 | Robert Williams | 36 | Lodger | Laborer | Georgia |
| 26 | Thomas Jones | 60 | Lodger | Bottom-Maker | Colorado |
| 27 | Robert Bromfield | 33 | Lodger | Crane-Man | Mississippi |
| 28 | Edward Curtis | 34 | Lodger | Concrete-Mixer | Kansas |
| 29 | Annie Belle Jones | 35 | Head | Proprietor | Louisiana |
| 30 | James Christopher | 35 | Lodger | Chipper | Mississippi |
| 31 | Maggie Lindsy | 49 | Head | — | Mississippi |
| 32 | Louise Welch | 25 | Daughter | — | Mississippi |
| 33 | Lucy Mae Ford | 22 | Daughter | — | Mississippi |
| 34 | Woodrow Welch | 4 | Grandson | — | Indiana |
| 35 | Frank Lee | 38 | Head | Pump Operator | Missouri |
| 36 | Adell Lee | 39 | Wife | — | Virginia |
| 37 | Leroy Hill | 20 | Son | — | Pennsylvania |
| 38 | Isaac Smith | 53 | Head | Barber | Alabama |
| 39 | Will Walker | 65 | Head | — | Alabama |
Related Census Records
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)