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William Lucas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this William Lucas across the 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Male
Son
Born: West Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Lucas |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | West Virginia |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Occupation | Pin Setter |
| Industry | Bowling Alley |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 126 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Occupation | Pin Setter |
| Township / Ward | Waukegan City |
| Est. Birth Year | ~1923 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| May Lucas | Daughter | — | 10 | ~1930 |
| Velma Lucas | Daughter | — | 12 | ~1928 |
| Kathleen Lucas | Daughter | — | 8 | ~1932 |
| Chester Lucas | Head | — | 44 | ~1896 |
| William Lucas | Son | — | 17 | ~1923 |
| Lester Lucas | Son | — | 19 | ~1921 |
| Everett Lucas | Son | — | 22 | ~1918 |
| Arthur Lucas | Son | — | 15 | ~1925 |
| Ethel Lucas | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Lake, Illinois
Son, age 7
Lake, Illinois · implied b. ~1923 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | William U. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | West Virginia |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
Lake-County, Illinois
Son, age 17
Lake-County, Illinois · implied b. ~1923 — 9 household members
| Surname | Lucas |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | West Virginia |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Occupation | Pin Setter |
| Industry | Bowling Alley |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 126 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 William Lucas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Lucas
Son · 1940 · age 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
Velma Lucas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
May Lucas
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Lucas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lester Lucas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everett Lucas
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Lucas
Sibling · 1940 · age 8
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-t0627-00830-00811)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Harkentein | 50 | Head | Matron | Illinois |
| 42 | Melle|Nellie Harkentein | 29 | Daughter | — | Illinois |
| 43 | Ralph Harkentein | 19 | Son | Time Keeper | Illinois |
| 44 | Ole Hansen | 63 | Head | Lumber Jack | Norway |
| 45 | Lizzie Hansen | 62 | Wife | — | Minnesota |
| 46 | Clifford Hansen | 38 | Son | Mechanic | Wisconsin |
| 47 | Lee Hansen | 36 | Son | — | Wisconsin |
| 48 | Glen Hansen | 26 | Son | Maintenance | Montana |
| 49 | Blanche Hansen | 27 | Daughter-in-law | Laborer | Wisconsin |
| 50 | Chester Lucas | 44 | Head | — | Ohio |
| 51 | Ethel Lucas | 42 | Wife | — | Ohio |
| 52 | Everett Lucas | 22 | Son | Laborer | Ohio |
| 53 | Lester Lucas | 19 | Son | Pin Setter | West Virginia |
| 54 | William Lucas THIS PERSON | 17 | Son | Pin Setter | West Virginia |
| 55 | Arthur Lucas | 15 | Son | — | Illinois |
| 56 | Velma Lucas | 12 | Daughter | — | Illinois |
| 57 | May Ella Lucas | 10 | Daughter | — | Illinois |
| 58 | Kathleen Helen Lucas | 8 | Daughter | — | Illinois |
| 59 | Nunzio Bentivegna | 45 | Head | Laborer | Italy |
| 60 | Rosalie Bentivegna | 30 | Wife | — | Italy |
| 61 | Sam Bentivegna | 19 | Son | Laborer | Illinois |
| 62 | Mary Bentivegna | 17 | Daughter | — | Illinois |
| 63 | Antoinette Bentivegna | 14 | Daughter | — | Illinois |
| 64 | Frank Bentivegna | 12 | Son | — | Illinois |
| 65 | Joseph Bentivegna | 10 | Son | — | Illinois |
| 66 | Sadie Bentivegna | 8 | Daughter | — | Illinois |
| 67 | Mildred Bentivegna | 6 | Son | — | Illinois |
| 68 | Nunzio Bentivegna | 4 | Son | — | Illinois |
| 69 | Rose Ann Bentivegna | 2 | Daughter | — | Illinois |
| 70 | Edward James Bentivegna | 1 | Son | — | Illinois |
| 71 | Aaron Keracher | 41 | Head | Metal Worker | Wisconsin |
| 72 | Mildred Keracher | 38 | Wife | — | Wisconsin |
| 73 | Jr Aaron Keracher | 16 | Son | — | Wisconsin |
| 74 | Florence Keracher | 14 | Daughter | — | Wisconsin |
| 75 | Janet Keracher | 12 | Daughter | — | Wisconsin |
| 76 | Sylvia Keracher | 9 | Daughter | — | Illinois |
| 77 | Ann Clarice Keracher | 7 | Daughter | — | Illinois |
| 78 | Thomas Keracher | 4 | Son | — | Illinois |
| 79 | Roy Caswell | 23 | Head | Technician | Georgia |
| 80 | Le Tari Caswell | 23 | Wife | — | Minnesota |
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)