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Lester Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vermilion-County, Illinois
Our Model Tree links this Lester Williams across the 1920, 1930 and 1940 US Censuses in Vermilion-County, Illinois (XGBoost, ~Confirmed), with identified parents Ira & Irvin — first a head (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Vermilion-County, Illinois |
| Surname | Williams |
| Given Name | Lester |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Oakwood Village |
| 1935 Residence (County) | Vermilion |
| Additional Details | |
| Occupation | Laborer |
| Industry | Interurban Section |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 660 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Oakwood Village |
| Est. Birth Year | ~1919 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lester | Age | Birth yr |
|---|---|---|---|---|
| Lester Williams | Head | — | 21 | ~1919 |
| Alice Williams | Spouse | — | 20 | ~1920 |
| Donald Williams | Son | — | 1 | ~1939 |
Census Appearances
1920
Vermilion, Illinois
Son, age
Vermilion, Illinois · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Lester |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Vermilion, Illinois
Son, age 11
Vermilion, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Lester |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Vermilion-County, Illinois
Head, age 21
Vermilion-County, Illinois · implied b. ~1919 — 3 household members
| Surname | Williams |
| Given Name | Lester |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Oakwood Village |
| 1935 Residence (County) | Vermilion |
| Occupation | Laborer |
| Industry | Interurban Section |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 660 |
| Highest Grade | H 1 |
| 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 Lester Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ira Williams (~0.92 confidence) and father Irvin Williams (~0.92 confidence) and mother Daisy Williams (~0.92 confidence) and mother Ochel Williams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ira Williams
b. ~1862
Source father
● Household
· direct · ~0.92
Father
Irvin Williams
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Daisy Williams
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ochel Williams
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lester Williams
Head · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Vermilion-County, Illinois
Open full size
1940 US Federal Census — Vermilion-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00899-00576)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Oakley Sapp | 39 | Head | Laborer | Illinois |
| 42 | Mabel Sapp | 39 | Wife | — | Illinois |
| 43 | Nina Sapp | 13 | Daughter | — | Illinois |
| 44 | Robert Sapp | 10 | Son | — | Illinois |
| 45 | Willard Sapp | 21 | Son | Laborer | Illinois |
| 46 | Zona Sapp | 22 | Daughter-in-law | — | Illinois |
| 47 | Willard Jr. Sapp | 2 | Grandson | — | Illinois |
| 48 | William Sapp | 0 | Grandson | — | Illinois |
| 49 | Bud Cook | 58 | Head | Laborer | Kentucky |
| 50 | Bessie Cook | 43 | Wife | — | Kentucky |
| 51 | Stephen Cook | 19 | Son | Laborer | Illinois |
| 52 | Frank Sapp | 72 | Head | Laborer | Illinois |
| 53 | Allie Sapp | 62 | Wife | — | Illinois |
| 54 | Alyce Sapp | 20 | Daughter | Seamstress | Illinois |
| 55 | Loyd Nichols | 67 | Head | Foreman | Kentucky |
| 56 | Alza Nichols | 61 | Wife | — | Kansas |
| 57 | Albert Jacobs | 49 | Head | Miner | Illinois |
| 58 | Goldie Jacobs | 43 | Wife | — | Illinois |
| 59 | James Jacobs | 3 | Son | — | Illinois |
| 60 | Gilbert Durham | 48 | Head | Truck Driver | Indiana |
| 61 | Thelma Durham | 28 | Wife | — | Illinois |
| 62 | Betty Durham | 8 | Daughter | — | Illinois |
| 63 | Eliza Preston | 81 | Head | — | Kentucky |
| 65 | John Downing | 64 | Head | Laborer | Illinois |
| 66 | Margaret Downing | 65 | Wife | — | Kentucky |
| 67 | Lester Williams THIS PERSON | 21 | Head | Laborer | Illinois |
| 68 | Alice Williams | 20 | Wife | — | Illinois |
| 69 | Donald Williams | 1 | Son | — | Illinois |
| 70 | Howard Jackson | 32 | Head | Laborer | Illinois |
| 71 | Mabel Jackson | 28 | Wife | — | Indiana |
| 72 | Betty Jackson | 8 | Daughter | — | Illinois |
| 73 | Margaret Jackson | 5 | Daughter | — | Illinois |
| 74 | James Jackson | 0 | Son | — | Illinois |
| 75 | Willis Downing | 33 | Head | Laborer | Illinois |
| 76 | Virgie Downing | 27 | Wife | — | Illinois |
| 77 | Sandra Oscar Downing | 7 | Son | — | Illinois |
| 78 | Juanita Downing | 5 | Daughter | — | Illinois |
| 79 | Lou Saults | 63 | Head | Laborer | Illinois |
| 80 | Effie Saults | 51 | Wife | — | Illinois |
Pedigree Summary
Lester
Gen 1 · 4 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)