CL
Clarence Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clay-County, Illinois
Our Model Tree links this Clarence Lewis across the 1920, 1930 and 1940 US Censuses in Clay-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Thurman — first a son (b.~1904), then head of a 3-person household.
Age 36
b. ~1904
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Illinois |
| Surname | Lewis |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Harter T |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Grocery Store |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 220 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Harter T |
| Est. Birth Year | ~1904 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Clarence Lewis | Son | — | 36 | ~1904 |
| Paul Lewis | Son | — | 16 | ~1924 |
| Thurman Lewis | Head | — | 66 | ~1874 |
Census Appearances
1920
Clay, Illinois
Son, age 16
Clay, Illinois · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Clarence V |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Missouri |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Clay, Illinois
Son, age 26
Clay, Illinois · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Clarence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Missouri |
| Occupation | laborer |
| Industry | orchard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Clay-County, Illinois
Son, age 36
Clay-County, Illinois · implied b. ~1904 — 3 household members
| Surname | Lewis |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Harter T |
| 1935 Residence (County) | Clay |
| Occupation | Clerk |
| Industry | Retail Grocery Store |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 220 |
| Highest Grade | 8 |
| 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 Clarence Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Lewis (~0.92 confidence) and father Thurman Lewis (~0.92 confidence) and mother Anna Lewis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Lewis
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Thurman Lewis
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Anna Lewis
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Lewis
Son · 1940 · age 36 · b. ~1904 · Illinois
★ You are viewing this record
Sibling
Paul Lewis
Sibling · 1940 · age 16
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 — Clay-County, Illinois
Open full size
1940 US Federal Census — Clay-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00769-00263)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John N. Thompson | 28 | Head | Farmer | Illinois |
| 2 | Reva Thompson | 23 | Wife | — | Illinois |
| 3 | Donna Marie Thompson | 4 | Daughter | — | Illinois |
| 4 | Judith Ann Thompson | 3 | Daughter | — | Illinois |
| 5 | John Robert Thompson | 1 | Son | — | Illinois |
| 6 | Thurman Lewis | 66 | Head | Farmer | Ohio |
| 7 | Clarence Lewis THIS PERSON | 36 | Son | Clerk | Illinois |
| 8 | Paul Lewis | 16 | Son | — | Illinois |
| 9 | Harlan Chasteen | 63 | Head | Farmer | Illinois |
| 10 | Emma Chasteen | 55 | Wife | — | Illinois |
| 11 | Lem Chasteen | 24 | Son | Attendant | Illinois |
| 12 | Betty Chasteen | 18 | Wife | — | Illinois |
| 13 | Homer Tolliver | 54 | Head | — | Illinois |
| 14 | Mary L. Tolliver | 54 | Wife | — | Illinois |
| 15 | John Dean | 58 | Head | Farmer | Illinois |
| 16 | Nora Dean | 58 | Wife | — | Indiana |
| 17 | Vaughn Willis | 33 | Head | Farmer | Illinois |
| 18 | Blanche Willis | 33 | Wife | Operator | Illinois |
| 19 | James Willis | 12 | Son | — | Illinois |
| 20 | Billy Willis | 9 | Son | — | Illinois |
| 21 | Robert Willis | 8 | Son | — | Illinois |
| 22 | Charles W. Brock | 72 | Head | Farmer | New York |
| 23 | Ida Brock | 62 | Wife | — | Illinois |
| 24 | Wesley Brock | 21 | Son | — | Illinois |
| 25 | Andrew Conroy | 72 | Head | — | Ohio |
| 26 | Minnie Conroy | 62 | Wife | — | Germany |
| 27 | John A. Conroy | 19 | Son | Attendant | Illinois |
| 28 | Andrew J. Conroy | 14 | Son | Attendant | Illinois |
| 29 | Leatha Thompson | 62 | Head | Keeping Of Chickens | Illinois |
| 30 | Verna Thompson | 47 | Sister | — | Illinois |
| 31 | L. D. Fort | 39 | Head | Farmer | Illinois |
| 32 | Myrtle Fort | 41 | Wife | — | Illinois |
| 33 | Melburn Fort | 16 | Son | — | Illinois |
| 34 | Pauline Fort | 13 | Daughter | — | Illinois |
| 35 | Juanita Fort | 11 | Daughter | — | Illinois |
| 36 | Vera Fort | 9 | Daughter | — | Illinois |
| 37 | Gerald Fort | 8 | Son | — | Illinois |
| 38 | Willard Colclasure | 45 | Head | Laborer | Illinois |
| 39 | Sylvia Colclasure | 24 | Wife | — | Illinois |
| 40 | Joe Morgan | 25 | Head | Farmer | Missouri |
Pedigree Summary
Clarence + 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)