JL
John Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this John Lewis across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents Ralph & Ione — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Lewis |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Abingdon City |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Purchasing Agent |
| Industry | Pottery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1650 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Purchasing Agent |
| Township / Ward | Abingdon City |
| Est. Birth Year | ~1913 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Margery Lewis | Daughter | — | 1 | ~1939 |
| John Lewis | Head | — | 27 | ~1913 |
| Edith Lewis | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Knox, Illinois
Son, age 7
Knox, Illinois · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | John M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 17
Knox, Illinois · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| 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
Knox-County, Illinois
Head, age 27
Knox-County, Illinois · implied b. ~1913 — 3 household members
| Surname | Lewis |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Abingdon City |
| 1935 Residence (County) | Knox |
| Occupation | Purchasing Agent |
| Industry | Pottery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1650 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 John Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ralph Lewis (~0.92 confidence) and mother Ione Lewis (~0.92 confidence) and mother Lura Lewis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ralph Lewis
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Ione Lewis
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Lura Lewis
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lewis
Head · 1940 · age 27 · b. ~1913 · 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 — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00826-00008)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Minnie P. Davis | 76 | Head | — | Illinois |
| 42 | Sterling Legate | 29 | Head | Pottery Operator | Arkansas |
| 43 | Evelyn Legate | 23 | Wife | — | Missouri |
| 44 | Elma Lee Legate | 3 | Daughter | — | Arkansas |
| 45 | Wanda Mae Legate | 1 | Daughter | — | Illinois |
| 46 | Nettie Marry | 72 | Head | — | Illinois |
| 47 | Annie Walls | 38 | Daughter | Teacher | Illinois |
| 48 | Barton L. Meadow | 58 | Head | — | Illinois |
| 49 | Ethel Meadow | 55 | Wife | — | Nebraska |
| 50 | Amy Donaho | 59 | Sister | Companion | Illinois |
| 51 | George E. Moore | 74 | Head | Telegraph Operator | Illinois |
| 52 | Mary Moore | 65 | Wife | — | Illinois |
| 53 | Ruth M. Moore | 37 | Daughter | Teacher | Illinois |
| 54 | Albert E. Johnson | 57 | Head | Laborer | Illinois |
| 55 | Jennie Johnson | 46 | Wife | — | Illinois |
| 56 | Kenneth Johnson | 14 | Son | — | Illinois |
| 57 | Otis Johnson | 13 | Son | — | Illinois |
| 58 | George Johnson | 10 | Son | — | Illinois |
| 59 | Raymond Johnson | 9 | Son | — | Illinois |
| 60 | Doris Johnson | 7 | Daughter | — | Illinois |
| 61 | Ralph Lee Johnson | 5 | Son | — | Illinois |
| 62 | Henry A. Hagan | 80 | Head | Operator | Illinois |
| 63 | Catherine Hagan | 70 | Wife | — | Illinois |
| 64 | Joseph Peake | 19 | Grandson | — | Illinois |
| 65 | Agnes Eldridge | 45 | Head | Machine Operator | Illinois |
| 66 | Gaylord Eldridge | 22 | Son | Machine Operator | Illinois |
| 67 | Louise Eldridge | 23 | Daughter-in-law | Machine Operator | Illinois |
| 68 | James Kilchry | 36 | Head | Carpenter | Illinois |
| 69 | Ethel Kilchry | 33 | Wife | Garment Operator | Illinois |
| 70 | James Kilchry | 7 | Son | — | Illinois |
| 71 | William Kilchry | 5 | Son | — | Illinois |
| 72 | Anne Kilchry | 4 | Daughter | — | Illinois |
| 73 | Nellie Mae Hornbaker | 27 | Head | Maid | Illinois |
| 74 | John Lewis THIS PERSON | 27 | Head | Purchasing Agent | Illinois |
| 75 | Edith Lewis | 22 | Wife | — | Illinois |
| 76 | Margery Lewis | 1 | Daughter | — | Illinois |
| 77 | Elmer Free | 44 | Head | Paper Hanger | Pennsylvania |
| 78 | Anna Free | 45 | Wife | — | Illinois |
| 79 | Elaine Free | 15 | Daughter | — | Illinois |
| 80 | Edwin Free | 17 | Son | Laborer | Illinois |
Pedigree Summary
John
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)