TS
Theodore Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Shelby-County, Illinois
Our Model Tree links this Theodore Smith across the 1920, 1930 and 1940 US Censuses in Shelby-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Illinois |
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Shelbyville city |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Occupation | Hired hand |
| Industry | Farm |
| Class of Worker | PW |
| Income (1939) | 100 |
| Highest Grade | S-6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Hired Hand |
| Township / Ward | Shelbyville City |
| Est. Birth Year | ~1917 |
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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| Ruth Smith | Daughter | — | 17 | ~1923 |
| Rita Bishop | Daughter | — | 10 | ~1930 |
| Charles Smith | Head | — | 61 | ~1879 |
| Theodore Smith | Son | — | 23 | ~1917 |
| Annie Smith | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Shelby, Illinois
Son, age 3
Shelby, Illinois · implied b. ~1917 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Shelby, Illinois
Son, age 12
Shelby, Illinois · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Theodore |
| 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
Shelby-County, Illinois
Son, age 23
Shelby-County, Illinois · implied b. ~1917 — 5 household members
| Surname | Smith |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Shelbyville city |
| 1935 Residence (County) | Shelby |
| Occupation | Hired hand |
| Industry | Farm |
| Class of Worker | PW |
| Income (1939) | 100 |
| Highest Grade | S-6 |
| 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 Theodore Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Smith (~0.92 confidence) and father Charles Smith (~0.92 confidence) and father Jesse Smith (~0.92 confidence) and mother Amy Smith (~0.92 confidence) and mother Annie Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Smith
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Charles Smith
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Jesse Smith
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Amy Smith
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Annie Smith
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Smith
Son · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Ruth Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Bishop
Sibling · 1940 · age 10
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 — Shelby-County, Illinois
Open full size
1940 US Federal Census — Shelby-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00890-00580)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clyde Briggs | 54 | Lodger | Plasterer | Illinois |
| 2 | Joe Holland | 31 | Head | Mason | Illinois |
| 3 | Rose Holland | 32 | Wife | — | Illinois |
| 4 | Rose Marie Holland | 9 | Daughter | — | Illinois |
| 5 | Joe Jr. Holland | 8 | Son | — | Illinois |
| 6 | Richard Holland | 3 | Son | — | Illinois |
| 7 | James Holland | 1 | Son | — | Illinois |
| 8 | Mat Miller | 53 | Head | Laborer | Illinois |
| 9 | Ethel Miller | 53 | Wife | — | Kansas |
| 10 | Russell Mccullom | 21 | Grandson | Hired Hand | Illinois |
| 11 | Bertha Mccullom | 18 | Grand-in-law | Packer | Illinois |
| 12 | Clarence Dobson | 36 | Head | Tool And Dye Maker | Illinois |
| 13 | Opal Dobson | 35 | Wife | Packer | Illinois |
| 14 | Jack Dobson | 14 | Son | — | Illinois |
| 15 | Betty Dobson | 12 | Daughter | — | Illinois |
| 16 | Charles Smith | 61 | Head | Laborer | Illinois |
| 17 | Annie Smith | 60 | Wife | Packer | Illinois |
| 18 | Theodore Smith THIS PERSON | 23 | Son | Hired Hand | Illinois |
| 19 | Ruth Smith | 17 | Daughter | Packer | Illinois |
| 20 | Rita Bishop | 10 | Daughter | — | Illinois |
| 21 | Arch Hudson | 45 | Head | Laborer | Illinois |
| 22 | Penolia Hudson | 46 | Wife | Assistant Cook | Arkansas |
| 23 | Howard Mullin | 16 | Nephew | — | Illinois |
| 24 | Clarence Francisco | 31 | Head | Plater | Illinois |
| 25 | Sylvia Francisco | 28 | Wife | — | Illinois |
| 26 | Ronald Francisco | 5 | Son | — | Illinois |
| 27 | Minerva Cox | 64 | Head | — | Illinois |
| 28 | Russell Griffin | 20 | Grandson | Miner | Illinois |
| 29 | Gwendolyn Boblett | 18 | Daughter | Cashier | Illinois |
| 30 | Stanley Wallace | 15 | Grandson | — | Illinois |
| 31 | Robert Le Crone | 19 | Lodger | Delivery Boy | Illinois |
| 32 | Nancy Donaldson | 54 | Head | — | Indiana |
| 33 | Charlie Ballard | 29 | Son | Hired Hand | Illinois |
| 34 | Ray Donaldson | 21 | Son | Laborer | Illinois |
| 35 | Frances Donaldson | 16 | Niece | — | Illinois |
| 36 | Lum Rankins | 54 | Head | — | Illinois |
| 37 | Alta Rankins | 48 | Wife | — | Illinois |
| 38 | Cecil H. Rankins | 22 | Son | Attendant | Illinois |
| 39 | Daisy Rankins | 22 | Daughter-in-law | Finisher | Illinois |
| 40 | Melvin Ward | 30 | Head | Laborer | Kansas |
Pedigree Summary
Theodore + 2 siblings
Gen 1 · 5 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)