TC
Thomas Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this Thomas Campbell across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed), with identified parents Leon & Leon — first a son (b.~1919), then head of a 2-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Campbell |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Mullan Gas Service |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 900 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Truck Driver |
| Township / Ward | Decatur City |
| Est. Birth Year | ~1919 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Leon Campbell | Head | — | 52 | ~1888 |
| Thomas Campbell | Son | — | 21 | ~1919 |
Census Appearances
1920
Macon, Illinois
Son, age 1
Macon, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Macon, Illinois
Son, age 10
Macon, Illinois · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Macon-County, Illinois
Son, age 21
Macon-County, Illinois · implied b. ~1919 — 2 household members
| Surname | Campbell |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Occupation | Truck driver |
| Industry | Mullan Gas Service |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 900 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leon Campbell (~0.92 confidence) and father Leon Campbell (~0.92 confidence) and father Lelon Campbell (~0.92 confidence) and mother Rita Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leon Campbell
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Leon Campbell
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Lelon Campbell
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Rita Campbell
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Campbell
Son · 1940 · age 21 · b. ~1919 · 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 — Macon-County, Illinois
Open full size
1940 US Federal Census — Macon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00843-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James E. Bowman | 66 | Head | Odd Jobs | Kentucky |
| 2 | Elizabeth Bowman | 57 | Wife | — | Illinois |
| 3 | David Wild | 63 | Head | Laborer | Illinois |
| 4 | Sarah Wild | 63 | Wife | — | Kentucky |
| 5 | Thomas Rugby | 53 | Head | Delivery Service | Illinois |
| 6 | Lucinda Rugby | 45 | Wife | — | Illinois |
| 7 | Beulah Thornton | 25 | Step daughter | Office Girl | Illinois |
| 8 | Otto Adams | 43 | Head | Baker | Illinois |
| 9 | Lillie Adams | 39 | Wife | Beauty Operator | Illinois |
| 10 | Leon Campbell | 52 | Head | Coal Boom Operator | Michigan |
| 11 | Thomas Campbell THIS PERSON | 21 | Son | Truck Driver | Iowa |
| 12 | Chas. E. Jr. Wise | 33 | Head | Material Inspector | Illinois |
| 13 | Belva Wise | 36 | Wife | — | Illinois |
| 14 | Carrol Joan Wise | 7 | Daughter | — | Michigan |
| 15 | Florence Green | 75 | Mother-in-law | — | Illinois |
| 16 | Clarence Greene | 45 | Head | Auto Mechanic | Minnesota |
| 17 | Gladys Greene | 45 | Wife | — | No Dakota |
| 18 | Walter Shuley | 30 | Head | Locomotive Fireman | Missouri |
| 19 | Norma Shuley | 33 | Wife | — | Iowa |
| 20 | Levi Keeler | 76 | Head | — | Illinois |
| 21 | Eva Keeler | 68 | Wife | — | Illinois |
| 22 | Elsie Haddock | 57 | Head | — | Illinois |
| 23 | Anwell Danner | 32 | Head | Hunting Engineer | Illinois |
| 24 | Ida Mae Danner | 30 | Wife | — | Illinois |
| 25 | Billy Lee Danner | 14 | Son | — | Illinois |
| 26 | Will Wright | 25 | Head | Grinder | Illinois |
| 27 | Mary Wright | 20 | Wife | Punch Press Operator | Illinois |
| 28 | Troy Roush | 36 | Head | Punch Press Operator | Illinois |
| 29 | Helen Roush | 32 | Wife | Factory Worker | Illinois |
| 30 | Patsy Roush | 3 | Daughter | — | Illinois |
| 31 | Otto Lindley | 40 | Head | Signal Worker | Illinois |
| 32 | Ethel Lindley | 34 | Wife | — | Illinois |
| 33 | Arthur Miller | 79 | Head | — | Illinois |
| 34 | William Simpson | 31 | Lodger | Clerk | Illinois |
| 35 | Bert Kirk | 79 | Head | — | Illinois |
| 36 | Sarah Kirk | 74 | Wife | — | Illinois |
| 37 | William Butler | 69 | Head | — | Illinois |
| 38 | Nellie Butler | 66 | Wife | — | Illinois |
| 39 | Archie Fuqua | 51 | Head | Farmer | Illinois |
| 40 | Nellie Fuqua | 52 | Wife | — | Illinois |
Pedigree Summary
Thomas
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)