JL
John Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mcdonough-County, Illinois
Our Model Tree links this John Lewis across the 1920, 1930 and 1940 US Censuses in Mcdonough-County, Illinois (XGBoost, ~Confirmed), with identified parents L & John — first a head (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mcdonough-County, Illinois |
| Surname | Lewis |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Macomb Township |
| 1935 Residence (County) | McDonough |
| Additional Details | |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Macomb Township |
| Est. Birth Year | ~1902 |
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 |
|---|---|---|---|---|
| Elizabeth Lewis | Daughter | — | 1 | ~1939 |
| John Lewis | Head | — | 38 | ~1902 |
| Flora Lewis | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Mcdonough, Illinois
Son, age 17
Mcdonough, Illinois · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Mcdonough, Illinois
Son, age 26
Mcdonough, Illinois · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | John L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farm Helper |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mcdonough-County, Illinois
Head, age 38
Mcdonough-County, Illinois · implied b. ~1902 — 3 household members
| Surname | Lewis |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Macomb Township |
| 1935 Residence (County) | McDonough |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| 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 John Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father L Lewis (~0.92 confidence) and father John Lewis (~0.92 confidence) and mother Sarah Lewis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
L Lewis
b. ~1867
Source father
● Household
· direct · ~0.92
Father
John Lewis
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Sarah Lewis
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lewis
Head · 1940 · age 38 · b. ~1902 · 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 — Mcdonough-County, Illinois
Open full size
1940 US Federal Census — Mcdonough-County, Illinois
Page Contents
17 people indexed on this census page (nara:1940:m-t0627-00839-00353)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Arndt | 51 | Head | Farming | Illinois |
| 2 | Iris Arndt | 39 | Wife | — | Illinois |
| 3 | Miner H. Bruninga | 54 | Head | Farming | Illinois |
| 4 | Clara Bruninga | 52 | Wife | — | Illinois |
| 5 | Merle (A.B.) Bruninga | 19 | Son | School | Illinois |
| 6 | Calvin Bruninga | 15 | Son | School | Illinois |
| 7 | Edgar Sullivan | 29 | Hired man | Hired Man | Illinois |
| 8 | Russel Sheerer | 20 | Lodger | School | Illinois |
| 9 | Edward Money | 55 | Head | Farming | Illinois |
| 10 | Nettie Money | 62 | Housekeeper | Housekeeper | Missouri |
| 11 | Frank Keck | 54 | Head | Farming | Illinois |
| 12 | Hila Keck | 54 | Wife | — | Illinois |
| 13 | Harry Brett | 33 | Head | Farmer | Illinois |
| 14 | Maude Brett | 31 | Wife | — | Illinois |
| 15 | John L. Lewis THIS PERSON | 38 | Head | Farmer | Illinois |
| 16 | Flora Lewis | 25 | Wife | — | Illinois |
| 17 | Elizabeth R. Lewis | 1 | Daughter | — | Illinois |
Related Census Records
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)