JB
John Bender — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this John Bender across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents William & Mamie — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Illinois
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Bender |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Divorced |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1100 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Mechanic |
| Township / Ward | Springfield |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Virginia Bender | Daughter | — | 19 | ~1921 |
| John Bender | Son | — | 27 | ~1913 |
| Robert Bender | Son | — | 21 | ~1919 |
| Marie Bender | Head | — | 49 | ~1891 |
Census Appearances
1920
Sangamon, Illinois
Son, age 7
Sangamon, Illinois · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bender |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| 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
Sangamon, Illinois
Son, age 17
Sangamon, Illinois · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bender |
| Given Name | John |
| 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 | Machinist |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sangamon-County, Illinois
Son, age 27
Sangamon-County, Illinois · implied b. ~1913 — 4 household members
| Surname | Bender |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Divorced |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Occupation | Mechanic |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1100 |
| Highest Grade | No 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 Bender across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Bender (~0.92 confidence) and mother Mamie Bender (~0.92 confidence) and mother Marie Bender (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Bender
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Mamie Bender
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Marie Bender
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Bender
Son · 1940 · age 27 · b. ~1913 · Illinois
★ You are viewing this record
Sibling
Robert Bender
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Bender
Sibling · 1940 · age 19
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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00885-00785)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia Lawson | 5 | Daughter | — | Illinois |
| 2 | Loyd Lawson | 2 | Son | — | Illinois |
| 3 | Carl Roberts | 34 | Head | Roofing Corp | Illinois |
| 4 | Anna Roberts | 33 | Wife | — | Illinois |
| 5 | James Roberts | 11 | Son | — | Illinois |
| 6 | Jackie Roberts | 9 | Son | — | Illinois |
| 7 | William Roberts | 6 | Son | — | Illinois |
| 8 | Patricia Roberts | 4 | Daughter | — | Illinois |
| 9 | Abbie B. Wheeler | 46 | Head | Cook | Arkansas |
| 10 | William D. Hall | 29 | Son | Butcher | Illinois |
| 11 | Howard Marshall | 26 | Head | Shipping Clk | Illinois |
| 12 | Marie Marshall | 22 | Wife | — | Illinois |
| 13 | Thomas Lee Marshall | 0 | Son | — | Illinois |
| 14 | Elizabeth Brohard | 51 | Head | Proprietor | Illinois |
| 15 | George Gessler | 67 | Lodger | — | New York |
| 16 | John Griesche | 67 | Lodger | — | Austria |
| 17 | Marie Bender | 49 | Head | — | Illinois |
| 18 | John Bender THIS PERSON | 27 | Son | Mechanic | Illinois |
| 19 | Robert Bender | 21 | Son | Labor | Illinois |
| 20 | Virginia Bender | 19 | Daughter | Labor | Illinois |
| 21 | Nero Shonkwiler | 67 | Head | Labor | Ohio |
| 22 | Roy Allen Shonkwiler | 37 | Son | Labor | North Dakota |
| 24 | Pauline Hall | 23 | Head | Waitress | Missouri |
| 25 | Clarence Heskett | 36 | Lodger | Bartender | Illinois |
| 26 | George Higdon | 66 | Lodger | — | Illinois |
| 27 | Robert Delaney | 76 | Lodger | — | Illinois |
| 28 | Bert Gathard | 66 | Lodger | — | Illinois |
| 29 | John M. Willbanks | 85 | Lodger | — | Illinois |
| 30 | Leonora Printon | 65 | Head | — | Illinois |
| 31 | George Tyler | 49 | Head | Barber | Illinois |
| 32 | Pearl Tyler | 44 | Wife | — | Illinois |
| 33 | Bernard Forister | 21 | Head | Painter | Illinois |
| 34 | Genevieve Forister | 19 | Wife | — | Missouri |
| 35 | Rochelle Forister | 2 | Daughter | — | Illinois |
| 36 | Nora Hinton | 65 | Lodger | — | Missouri |
| 37 | William Brawnes | 67 | Head | Salesman | Illinois |
| 38 | Mary Brawnes | 61 | Wife | Clerk | Illinois |
| 39 | Stanley Jones | 53 | Head | Miner | Missouri |
| 40 | Maggie Jones | 48 | Wife | Clerk | Illinois |
Pedigree Summary
John + 2 siblings
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)