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John Maxwell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this John Maxwell across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents John & Mrs — first a son (b.~1914), then head of a 6-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Maxwell |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Henderson Twp. |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Station operator |
| Industry | Gasoline filling station |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 1440 |
| Highest Grade | C 1 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Station Operator |
| Township / Ward | Henderson Twp |
| Est. Birth Year | ~1914 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Maxwell | Son | — | 26 | ~1914 |
| Virginia Maxwell | Daughter | — | 22 | ~1918 |
| John Maxwell | Head | — | 65 | ~1875 |
| La Maxwell | Son | — | 19 | ~1921 |
| Amelia Maxwell | Spouse | — | 55 | ~1885 |
| Earl Maxwell | Son | — | 16 | ~1924 |
Census Appearances
1920
Knox, Illinois
Son, age 6
Knox, Illinois · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maxwell |
| Given Name | John Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 16
Knox, Illinois · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maxwell |
| Given Name | John Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Virginia |
| Occupation | Salesman |
| Industry | Drug store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Son, age 26
Knox-County, Illinois · implied b. ~1914 — 6 household members
| Surname | Maxwell |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Henderson Twp. |
| 1935 Residence (County) | Knox |
| Occupation | Station operator |
| Industry | Gasoline filling station |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 1440 |
| Highest Grade | C 1 |
| 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 Maxwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Maxwell (~0.92 confidence) and mother Mrs Maxwell (~0.92 confidence) and mother Amelia Maxwell (~0.92 confidence) and mother Ethelia Maxwell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Maxwell
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Mrs Maxwell
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Amelia Maxwell
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Ethelia Maxwell
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Maxwell
Son · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
La Maxwell
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Maxwell
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Maxwell
Sibling · 1940 · age 16
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 — 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-t0627-00827-00044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marion Griffith | 26 | Wife | — | Illinois |
| 2 | Walter Griffith | 1 | Son | — | Illinois |
| 3 | Marion Cunningham | 39 | Head | City Mail Carrier | Illinois |
| 4 | Beulah R. Cunningham | 37 | Wife | — | Iowa |
| 5 | Richard Cunningham | 16 | Son | — | Illinois |
| 6 | Arthur Dickey | 20 | Nephew | Farm Hand | Iowa |
| 7 | Nellie O. Upson | 53 | Head | — | Illinois |
| 8 | Lyle Upson | 30 | Son | Carman Laborer | Illinois |
| 9 | Nina Upson | 21 | Daughter | — | Illinois |
| 10 | Selma Kinser | 55 | Sister | — | Illinois |
| 11 | Earl Kinser | 15 | Nephew | — | Wisconsin |
| 12 | Frank D. Cunningham | 41 | Head | Farmer | Illinois |
| 13 | Zella Cunningham | 41 | Wife | — | Illinois |
| 14 | Virginia Cunningham | 10 | Daughter | — | Illinois |
| 15 | Jean Cunningham | 8 | Daughter | — | Illinois |
| 16 | Dale Cunningham | 5 | Son | — | Illinois |
| 17 | Wayne Larson | 22 | Hired Hand | Farm Hand | Illinois |
| 18 | J. S. Frey | 60 | Head | — | Kansas |
| 19 | Mary Frey | 58 | Sister | — | Kansas |
| 20 | John A. Maxwell | 65 | Head | Farmer | Illinois |
| 21 | Amelia L. Maxwell | 55 | Wife | — | Virginia |
| 22 | John Jr. Maxwell THIS PERSON | 26 | Son | Station Operator | Illinois |
| 23 | Earl E. Maxwell | 16 | Son | — | Illinois |
| 24 | La Verne Maxwell | 19 | Son | — | Illinois |
| 25 | Virginia Maxwell | 22 | Daughter | — | Illinois |
| 26 | Milton P. Johnson | 24 | Head | Farmer | Illinois |
| 27 | Winifred Johnson | 23 | Wife | — | Illinois |
| 28 | Leonard Harmon | 56 | Head | Farmer | Illinois |
| 29 | Louise Harmon | 54 | Wife | — | Illinois |
| 30 | Emma Parrish | 81 | Mother-in-law | — | England |
| 31 | Margaret Harmon | 22 | Daughter | Stenographer | Illinois |
| 32 | Nora Hayden | 49 | Head | Farming | Kentucky |
| 33 | Glen Switzer | 38 | Lodger | Section Mechanic | Iowa |
| 34 | Owen Lloyd | 35 | Head | Truck Driver | Iowa |
| 35 | Gladys Lloyd | 31 | Wife | — | Illinois |
| 36 | Clyde Haines | 58 | Head | — | Missouri |
| 37 | Ethel Haines | 53 | Wife | — | Illinois |
| 38 | Thomas Shea | 53 | Head | Farmer | Illinois |
| 39 | Grace Shea | 49 | Wife | — | Wisconsin |
| 40 | Donald Shea | 24 | Son | Farmer | Illinois |
Related Census Records
Pedigree Summary
John + 3 siblings
Gen 1 · 4 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)