FT
Fred Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Piatt-County, Illinois
Our Model Tree links this Fred Thomas across the 1920, 1930 and 1940 US Censuses in Piatt-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 5-person household.
Age 62
b. ~1878
Male
Head
Born: Illinois
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Piatt-County, Illinois |
| Surname | Thomas |
| Given Name | Fred D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Blue Ridge Twp |
| 1935 Residence (County) | Piatt |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Blue Ridge Twp |
| Est. Birth Year | ~1878 |
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 Fred | Age | Birth yr |
|---|---|---|---|---|
| Fred Thomas | Head | — | 62 | ~1878 |
| Larry Thomas | Other | — | 4 | ~1936 |
| Ida Thomas | Other | — | 23 | ~1917 |
| Freddy Thomas | Son | — | 27 | ~1913 |
| Glen Thomas | Son | — | 33 | ~1907 |
Census Appearances
1920
Piatt, Illinois
Head, age 42
Piatt, Illinois · implied b. ~1878 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Fred |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Ohio |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Piatt, Illinois
Head, age 52
Piatt, Illinois · implied b. ~1878 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | VV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Piatt-County, Illinois
Head, age 62
Piatt-County, Illinois · implied b. ~1878 — 5 household members
| Surname | Thomas |
| Given Name | Fred D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Blue Ridge Twp |
| 1935 Residence (County) | Piatt |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 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 Fred Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Fred Thomas
Head · 1940 · age 62 · b. ~1878 · 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 — Piatt-County, Illinois
Open full size
1940 US Federal Census — Piatt-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00867-00106)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cleda Lathrop | 20 | Wife | — | Illinois |
| 2 | Larry Lathrop | 1 | Son | — | Illinois |
| 3 | Charles D. Mosgrove | 47 | Head | Farmer | Missouri |
| 4 | Nellie Mosgrove | 45 | Wife | — | Illinois |
| 5 | Charles Jr. Mosgrove | 18 | Son | — | Illinois |
| 6 | Ethelyn Mosgrove | 14 | Daughter | — | Illinois |
| 7 | George D. Norwood | 36 | Head | Farm Laborer | Illinois |
| 8 | Doris Norwood | 34 | Wife | — | Illinois |
| 9 | Howard Vangundy | 43 | Head | Farmer | Illinois |
| 10 | Esther Vangundy | 42 | Wife | — | Illinois |
| 11 | Henry Beard | 53 | Head | Farmer | Illinois |
| 12 | Clara Beard | 43 | Wife | — | Illinois |
| 13 | Eugene Beard | 24 | Son | Farmer | Illinois |
| 14 | Lucille Beard | 22 | Daughter | Teacher | Illinois |
| 15 | Juanita Beard | 19 | Daughter | — | Illinois |
| 16 | Robert Beard | 9 | Son | — | Illinois |
| 17 | Attie Thomas | 58 | Hired hand | Farm Laborer | Indiana |
| 18 | George Propeck | 48 | Head | Farmer | Illinois |
| 19 | Gertrude Propeck | 48 | Wife | — | Illinois |
| 20 | Richard Propeck | 14 | Son | — | Illinois |
| 21 | Virginia Propeck | 12 | Daughter | — | Illinois |
| 22 | Everett Judy | 45 | Head | Farmer | Illinois |
| 23 | Gladys Judy | 40 | Wife | — | Illinois |
| 24 | Rosemary Judy | 2 | Daughter | — | Illinois |
| 25 | Fred D. Thomas THIS PERSON | 62 | Head | Farmer | Illinois |
| 26 | Glen Thomas | 33 | Son | Farm Laborer | Illinois |
| 27 | Freddy Thomas | 27 | Son | Farm Laborer | Illinois |
| 28 | Ida Mae Thomas | 23 | Daughter-in-law | — | Illinois |
| 29 | Larry Thomas | 4 | Grandson | — | Illinois |
| 30 | Lyle Niklaus | 30 | Head | Farmer | Illinois |
| 31 | Kathryn Niklaus | 32 | Wife | — | Illinois |
| 32 | Ada Niklaus | 57 | Mother | — | Kentucky |
| 33 | Ernest Gadberry | 26 | Hired hand | Farm Laborer | Kentucky |
| 34 | Edgar Conley | 28 | Head | Farm Laborer | Kentucky |
| 35 | Retta Conley | 24 | Wife | — | Kentucky |
| 36 | Eva Conley | 7 | Daughter | — | Illinois |
| 37 | Carl Conley | 4 | Son | — | Illinois |
| 38 | Lillian Conley | 2 | Daughter | — | Illinois |
| 39 | Earl Conley | 36 | Brother | Farm Laborer | Kentucky |
| 40 | Bryan Brubaker | 43 | Head | Farmer | Illinois |
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)