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John Charles — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this John Charles across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Charles |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Knox Township |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Knox Township |
| Est. Birth Year | ~1887 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Jane Charles | Daughter | — | 24 | ~1916 |
| William Charles | Son | — | 11 | ~1929 |
| Raymond Charles | Son | — | 21 | ~1919 |
| Nema Charles | Spouse | — | 52 | ~1888 |
| John Charles | Head | — | 53 | ~1887 |
Census Appearances
1920
Knox, Illinois
Head, age 33
Knox, Illinois · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Charles |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Head, age 44
Knox, Illinois · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Charles |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Head, age 53
Knox-County, Illinois · implied b. ~1887 — 5 household members
| Surname | Charles |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Knox Township |
| 1935 Residence (County) | Knox |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 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 Charles across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Charles
Head · 1940 · age 53 · b. ~1887 · Illinois
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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-t0627-00827-00159)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sheetz, Irene Sheetz | 9 | daughter | — | Illinois |
| 42 | Francis Sheetz | 5 | son | — | Illinois |
| 43 | Elizabeth Sheetz | 3 | daughter | — | Illinois |
| 44 | Fred C. Knowles | 55 | head | Farmer | Illinois |
| 45 | Mabel Knowles | 42 | wife | Farmer | Illinois |
| 46 | Harold Knowles | 23 | son | Farmer | Illinois |
| 47 | Greta Knowles | 16 | daughter | — | Illinois |
| 48 | Wanda Knowles | 3 | daughter | — | Illinois |
| 49 | Gene W. Palmer | 28 | head | Farmer | Illinois |
| 50 | Mary Palmer | 22 | wife | — | Illinois |
| 51 | Melvin Hoyt | 63 | hired hand | Laborer | Illinois |
| 52 | Fred H. Pearson | 49 | head | Farmer | Sweden |
| 53 | Signe J. Pearson | 45 | wife | — | Sweden |
| 54 | Sigfred Pearson | 24 | son | Laborer | Illinois |
| 55 | Linnea Pearson | 20 | daughter | — | Illinois |
| 56 | Violet Pearson | 16 | daughter | — | Illinois |
| 57 | Harold Pearson | 10 | son | — | Illinois |
| 58 | Oscar Pearson | 56 | brother | Laborer | Sweden |
| 59 | John Charles THIS PERSON | 53 | head | Farmer | Illinois |
| 60 | Nema Charles | 52 | wife | — | Illinois |
| 61 | Jane Charles | 24 | daughter | — | Illinois |
| 62 | Raymond Charles | 21 | son | — | Illinois |
| 63 | William Charles | 11 | son | — | Illinois |
| 64 | Albert Goedeke | 28 | head | Farm Hand | Missouri |
| 65 | Leona Goedeke | 25 | wife | — | Illinois |
| 66 | Lyle Goedeke | 2 | son | — | Illinois |
| 67 | Paul S. Wilson | 46 | head | Farmer | Illinois |
| 68 | Iona Wilson | 36 | wife | — | Michigan |
| 69 | Donald Wilson | 13 | son | — | Illinois |
| 70 | Thomas Wilson | 9 | son | — | Illinois |
| 71 | Marilyn Wilson | 1 | daughter | — | Illinois |
| 72 | Carolyn Wilson | 1 | daughter | — | Illinois |
| 73 | Ralph Wagner | 39 | head | Agent | Illinois |
| 74 | Clenna Wagner | 27 | wife | — | Illinois |
| 75 | Janis Wagner | 15 | daughter | — | Illinois |
| 76 | Dwayne Wagner | 13 | son | — | Illinois |
| 77 | Forest Beth | 37 | head | Farmer | Illinois |
| 78 | Mary Carrigan | 37 | housekeeper | Housekeeper | Illinois |
| 79 | Derrell Carrigan | 15 | nephew | — | Illinois |
| 80 | Rosemary Carrigan | 12 | niece | — | Illinois |
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)