TK
Thomas King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Thomas King across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a head (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | King |
| Given Name | Thomas Jr. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Silvis City |
| Additional Details | |
| Occupation | 50 |
| Industry | owner-manager |
| Class of Worker | trucking service |
| Highest Grade | H-2 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | 50 |
| Township / Ward | Silvis City |
| Est. Birth Year | ~1915 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Patricia King | Daughter | — | 2 | ~1938 |
| Thomas King | Head | — | 25 | ~1915 |
| Lillian King | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Rock Island, …
Son, age 4
Rock Island, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Thomas P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Son, age 15
Rock Island, Illinois · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Thomas Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Head, age 25
Rock-Island-County, Illinois · implied b. ~1915 — 3 household members
| Surname | King |
| Given Name | Thomas Jr. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Silvis City |
| Occupation | 50 |
| Industry | owner-manager |
| Class of Worker | trucking service |
| 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 Thomas King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas King (~0.92 confidence) and father Thomas King (~0.92 confidence) and mother Martha King (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas King
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Thomas King
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Martha King
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas King
Head · 1940 · age 25 · b. ~1915 · 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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
28 people indexed on this census page (nara:1940:m-t0627-00874-00719)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sophie Deloach | 18 | daughter | 42 | Illinois |
| 2 | Max Tiedtke | 34 | head | Boilermaker Helper | Illinois |
| 3 | Helen Tiedtke | 33 | wife | Operator | Illinois |
| 4 | Richard Tiedtke | 9 | son | — | Illinois |
| 5 | Thomas Jr. King THIS PERSON | 25 | head | 50 | Illinois |
| 6 | Lillian King | 22 | wife | — | Montana |
| 7 | Patricia King | 2 | daughter | 0 | Illinois |
| 8 | John Heflin | 44 | head | 4 | Illinois |
| 9 | Mariemma Heflin | 44 | wife | — | Colorado |
| 10 | Betty June Heflin | 17 | daughter | 6 | Illinois |
| 11 | Alfred Allen | 27 | head | Laborer | Iowa |
| 12 | Audrey Allen | 24 | wife | — | Iowa |
| 13 | Shirley Allen | 5 | daughter | — | Illinois |
| 14 | Beverly Allen | 3 | daughter | 0 | Illinois |
| 15 | Alfred Charles Allen | 1 | son | 0 | Illinois |
| 16 | Jacob Fries | 64 | head | — | Illinois |
| 17 | Paul Rachelle | 42 | son-in-law | Machine Operator | Illinois |
| 18 | Lettie Rachelle | 42 | daughter | — | Illinois |
| 19 | Charles Kaufman | 67 | head | Gardener | Pennsylvania |
| 20 | Mabel Kaufman | 55 | wife | — | Illinois |
| 21 | Andrew Tuvarek | 27 | head | Riveter | Illinois |
| 22 | Mary Tuvarek | 24 | wife | 5 | Illinois |
| 23 | Dorothy Tuvarek | 1 | daughter | 0 | Illinois |
| 24 | Louise Einfeldt | 58 | head | — | Belgium |
| 25 | Antoine Einfeldt | 32 | son | Ground Craneman | Belgium |
| 26 | Leda Einfeldt | 25 | daughter-in-law | — | Illinois |
| 27 | Darrel Einfeldt | 6 | grandson | — | Illinois |
| 28 | David Einfeldt | 4 | grandson | — | Illinois |
Pedigree Summary
Thomas
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)