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John Knox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this John Knox across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents Miles & Russell — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Knox |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Scott Township |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 866 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Scott Township |
| Est. Birth Year | ~1918 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Russell Knox | Head | — | 46 | ~1894 |
| Florence Knox | Spouse | — | 45 | ~1895 |
| Kenneth Knox | Son | — | 17 | ~1923 |
| John Knox | Son | — | 22 | ~1918 |
Census Appearances
1920
Champaign, Illinois
Son, age 1
Champaign, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Son, age 12
Champaign, Illinois · implied b. ~1918 — 27 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Champaign-County, Illinois
Son, age 22
Champaign-County, Illinois · implied b. ~1918 — 4 household members
| Surname | Knox |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Scott Township |
| 1935 Residence (County) | Champaign |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 866 |
| Highest Grade | H 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 Knox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Miles Upton (~0.92 confidence) and father Russell Knox (~0.92 confidence) and father Russell Knox (~0.92 confidence) and mother Bell Pfister (~0.92 confidence) and mother Callie Upton (~0.92 confidence) and mother Florence Knox (~0.92 confidence) and mother Mary Bryan (~0.92 confidence) and mother Velma Walker (~0.92 confidence). The pedigree spans 1 generation with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Miles Upton
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Russell Knox
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Russell Knox
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Bell Pfister
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Callie Upton
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Florence Knox
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Mary Bryan
b. ~1900
Source mother
● Household
· direct · ~0.92
Mother
Velma Walker
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Knox
Son · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Kenneth Knox
Sibling · 1940 · age 17
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 — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00766-00771)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eugene Beckett | 4 | son | — | Illinois |
| 2 | John M Beckett | 3 | son | — | Illinois |
| 3 | Mollie Beckett | 0 | daughter | — | Illinois |
| 4 | George W Armstrong | 50 | Head | Proprietor | Illinois |
| 5 | Maude Armstrong | 51 | wife | — | Illinois |
| 6 | Leslie Armstrong | 24 | son | Operator | Illinois |
| 7 | Darrel Armstrong | 18 | son | — | Illinois |
| 8 | Annabelle Armstrong | 15 | daughter | — | Illinois |
| 9 | B. H. Barber | 62 | Head | Operator | Illinois |
| 10 | Jessie Barber | 52 | wife | — | Illinois |
| 11 | Leslie Toste | 27 | hired man | Laborer | Illinois |
| 12 | Arthur Dale | 39 | Head | Laborer | Illinois |
| 13 | Lola Dale | 37 | wife | — | Illinois |
| 14 | Clarence Dale | 18 | son | Laborer | Illinois |
| 15 | Stacy Ruth Dale | 13 | daughter | — | Illinois |
| 16 | Ronald Schnepp | 7 | boarder | — | Illinois |
| 17 | Otis X Pfiester | 52 | Head | Operator | Illinois |
| 18 | Belle Pfiester | 48 | wife | — | Illinois |
| 19 | Richard Pfiester | 16 | son | 175 | Illinois |
| 20 | Kay Pfiester | 5 | daughter | — | Illinois |
| 21 | Huston W Williams | 34 | Head | Operator | Tennessee |
| 22 | Lora Williams | 34 | wife | — | Tennessee |
| 23 | Carl Williams | 14 | son | — | Illinois |
| 24 | Dayton V Stahl | 43 | Head | Operator | Illinois |
| 25 | Frances Stahl | 37 | wife | — | Illinois |
| 26 | Lloyd Stahl | 23 | son | 160 | Illinois |
| 27 | Russell R Knox | 46 | Head | Operator | Illinois |
| 28 | Florence Knox | 45 | wife | 6 | Illinois |
| 29 | John Knox THIS PERSON | 22 | son | Laborer | Illinois |
| 30 | Kenneth Knox | 17 | son | — | Illinois |
| 31 | Clarence Schellhase | 37 | Head | Delivery | Indiana |
| 32 | Juanita Schellhase | 27 | wife | — | Tennessee |
| 33 | Rosemarie Schellhase | 0 | daughter | — | Illinois |
| 34 | Nicholas Lores | 75 | Head | Operator | Luxemburg |
| 35 | Katherine Lores | 65 | wife | — | Illinois |
| 36 | Thomas H Barker | 52 | Head | Operator | England |
| 37 | Mable Barker | 52 | wife | — | Illinois |
| 38 | Thomas H Jr Barker | 20 | son | Laborer | Illinois |
| 39 | Margaret Barker | 19 | daughter | 0 | Illinois |
| 40 | Ethel K Rayburn | 50 | Head | 0 | Illinois |
Pedigree Summary
John + 1 sibling
Gen 1 · 8 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)