TJ
Theodore Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Douglas-County, Illinois
Our Model Tree links this Theodore Jones across the 1920, 1930 and 1940 US Censuses in Douglas-County, Illinois (XGBoost, ~Confirmed), with identified parents Walter & Gertrude — first a son (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Illinois |
| Surname | Jones |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Bourbon Township |
| Additional Details | |
| Occupation | Farm |
| Industry | PW |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farm |
| Township / Ward | Bourbon 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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| Theodore Jones | Son | — | 38 | ~1902 |
| Bell Chandler | Other | — | 85 | ~1855 |
| Gertrude Jones | Head | — | 75 | ~1865 |
Census Appearances
1920
Coles, Illinois
Son, age 18
Coles, Illinois · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Labor |
| Industry | Gen Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Douglas, Illinois
Son, age 28
Douglas, Illinois · implied b. ~1902 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Helper |
| Industry | At Home |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Douglas-County, Illinois
Son, age 38
Douglas-County, Illinois · implied b. ~1902 — 3 household members
| Surname | Jones |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Bourbon Township |
| Occupation | Farm |
| Industry | PW |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 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 Theodore Jones across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Walter Jones (~0.92 confidence) and mother Gertrude Jones (~0.92 confidence) and mother Gertrude Jones (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Walter Jones
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Gertrude Jones
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Gertrude Jones
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Jones
Son · 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 — Douglas-County, Illinois
Open full size
1940 US Federal Census — Douglas-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00795-00109)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ted Rich | 34 | Head | Farmer | Illinois |
| 42 | Arlena Rich | 27 | Wife | Housewife | Illinois |
| 43 | Keith Rich | 11 | Son | — | Illinois |
| 44 | Maryary Rich | 9 | Daughter | — | Illinois |
| 45 | Rayburn Rich | 7 | Son | — | Illinois |
| 46 | Mildred Rich | 5 | Daughter | — | Illinois |
| 47 | Harold Rich | 3 | Son | — | Illinois |
| 48 | Roller Paul Rich | 24 | Hired hand | Farm Hand | Illinois |
| 49 | Henry G. Jr. Schultz | 31 | Head | Farmer | Illinois |
| 50 | Mildred Schultz | 27 | Wife | Housewife | Illinois |
| 51 | Arnold Schultz | 7 | Son | — | Illinois |
| 52 | Charles S. Schultz | 2 | Son | — | Illinois |
| 53 | Gib S. Gaffney | 65 | Head | Farmer | Kentucky |
| 54 | Mary Gaffney | 65 | Wife | Farm | Kentucky |
| 55 | Siz A. Gaffney | 97 | Mother | — | Kentucky |
| 56 | Chase Mccallister | 61 | Head | Farmer | Illinois |
| 57 | Elmer Harrington | 36 | Head | Farmer | Illinois |
| 58 | Irena Harrington | 37 | Wife | Housewife | Kansas |
| 59 | Dale Still | 16 | Hired hand | Farm Hand | Ohio |
| 60 | Ray Gibbs | 26 | Head | Farmer | Kentucky |
| 61 | Ester Gibbs | 18 | Wife | Housewife | Illinois |
| 62 | Anna Louise Gibbs | 0 | Daughter | — | Illinois |
| 63 | George A. Jones | 41 | Head | Farmer | Illinois |
| 64 | Cecily Jones | 41 | Wife | Home | Montana |
| 65 | Joan Jones | 12 | Daughter | — | Montana |
| 66 | Georanna Jones | 11 | Daughter | — | Illinois |
| 67 | William Jones | 8 | Son | — | Illinois |
| 68 | Gertrude Jones | 75 | Head | Farm | Illinois |
| 69 | Theodore Jones THIS PERSON | 38 | Son | Farm | Illinois |
| 70 | Bell Chandler | 85 | Sister | — | Illinois |
| 71 | William Adams | 57 | Head | Laborer | Kentucky |
| 72 | Nellie Adams | 51 | Wife | Home | Kentucky |
| 73 | Edna Mae Adams | 21 | Daughter | Housekeeper | Illinois |
| 74 | Ray Adams | 19 | Son | — | Illinois |
| 75 | Maurice Beardsley | 47 | Head | Brakeman | Indiana |
| 76 | Fearn Beardsley | 47 | Wife | Home | Illinois |
| 77 | Estie Beardsley | 33 | Daughter | Home | Illinois |
| 78 | Doris Beardsley | 22 | Daughter | Hospital | Illinois |
| 79 | Everett Decker | 32 | Head | Farm Hand | Illinois |
| 80 | Flora Decker | 25 | Wife | Home | Illinois |
Pedigree Summary
Theodore
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)