RL
Robert Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Effingham-County, Illinois
Our Model Tree links this Robert Lewis across the 1920, 1930 and 1940 US Censuses in Effingham-County, Illinois (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Effingham-County, Illinois |
| Surname | Lewis |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Watson Twp |
| 1935 Residence (County) | Effingham |
| Additional Details | |
| Occupation | Salesman |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 214 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Salesman |
| Township / Ward | Watson Twp |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Laraine Lewis | Daughter | — | 16 | ~1924 |
| William Lewis | Head | — | 58 | ~1882 |
| Lydia White | Other | — | 79 | ~1861 |
| Robert Lewis | Son | — | 21 | ~1919 |
| William Lewis | Son | — | 32 | ~1908 |
| Myrtle Lewis | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Effingham, Illinois
Son, age 1
Effingham, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Effingham, Illinois
Son, age 11
Effingham, Illinois · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Robert J |
| 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
Effingham-County, Illinois
Son, age 21
Effingham-County, Illinois · implied b. ~1919 — 6 household members
| Surname | Lewis |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Watson Twp |
| 1935 Residence (County) | Effingham |
| Occupation | Salesman |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 214 |
| Highest Grade | No 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 Robert Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Lewis (~0.92 confidence) and father William Lewis (~0.92 confidence) and mother Myrtle Lewis (~0.92 confidence) and mother Myrtle Lewis (~0.92 confidence) and mother Myrtle Lewis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Lewis
b. ~1882
Source father
● Household
· direct · ~0.92
Father
William Lewis
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Myrtle Lewis
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Myrtle Lewis
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Myrtle Lewis
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Lewis
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Laraine Lewis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lewis
Sibling · 1940 · age 32
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 — Effingham-County, Illinois
Open full size
1940 US Federal Census — Effingham-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00800-00621)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James P. Arnold | 48 | Head | Laborer | Illinois |
| 2 | Roxie Arnold | 40 | Wife | — | Illinois |
| 3 | Thelma Arnold | 17 | Daughter | Home Keeper | Illinois |
| 4 | Donovan Arnold | 13 | Son | — | Illinois |
| 5 | Charles Arnold | 8 | Son | — | Illinois |
| 6 | A. B. Lilly | 58 | Head | Farmer | Illinois |
| 7 | Pace Lilly | 56 | Brother | Laborer | Illinois |
| 8 | Lola Lilly | 31 | Sister-in-law | — | Illinois |
| 9 | Thomas Lilly | 6 | Nephew | — | Illinois |
| 10 | W. M. Lilly | 80 | Father | — | Illinois |
| 11 | William O. Lewis | 58 | Head | Farmer | Illinois |
| 12 | Myrtle C. Lewis | 58 | Wife | — | Illinois |
| 13 | William O. Lewis | 32 | Son | Clergyman | Illinois |
| 14 | Robert L. Lewis THIS PERSON | 21 | Son | Salesman | Illinois |
| 15 | Laraine Lewis | 16 | Daughter | House Keeper | Illinois |
| 16 | Lydia White | 79 | Mother-in-law | — | Illinois |
| 17 | Tony Menthe | 56 | Head | Farmer | Illinois |
| 18 | Olga Menthe | 37 | Wife | — | Illinois |
| 19 | Freida Menthe | 19 | Daughter | — | Illinois |
| 20 | Loretta Menthe | 16 | Daughter | — | Illinois |
| 21 | Julia Sprinkle | 67 | Head | House Keeper | Illinois |
| 22 | Michael E. Sprinkle | 25 | Head | Farmer | Illinois |
| 23 | Margaret Sprinkle | 23 | Wife | — | Illinois |
| 24 | Michael Sprinkle | 3 | Son | — | Illinois |
| 25 | Trust R. Martin | 37 | Head | Farmer | Illinois |
| 26 | Iva P. Martin | 40 | Wife | Teacher | Illinois |
| 27 | Leland R. Martin | 13 | Son | — | Illinois |
| 28 | Stanley E. Martin | 12 | Son | — | Illinois |
| 29 | Robert J. Manty | 25 | Head | Farmer | Illinois |
| 30 | Mary J. Manty | 24 | Wife | — | Michigan |
| 31 | Louis P. Manty | 82 | Head | Farmer | Ohio |
| 32 | Aldora R. Manty | 77 | Wife | — | Illinois |
| 33 | Anola J. Martin | 57 | Head | Farmer | Illinois |
| 34 | Anna A. Martin | 50 | Mother | — | Illinois |
| 35 | Carl J. Chaplin | 44 | Head | Farmer | Illinois |
| 36 | Marie Chaplin | 42 | Wife | — | Illinois |
| 37 | Forest S. Tucker | 26 | Head | Farmer | Illinois |
| 38 | Irene Tucker | 18 | Wife | — | Illinois |
| 39 | Edith Jaycox | 51 | Head | Farmer | Illinois |
Related Census Records
Pedigree Summary
Robert + 2 siblings
Gen 1 · 5 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)