ET
Ernest Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Appanoose-County, Iowa
Our Model Tree links this Ernest Thomas across the 1930 and 1940 US Censuses in Appanoose-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 11-person household.
Age 20
b. ~1920
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Appanoose-County, Iowa |
| Surname | Thomas |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Centerville City |
| 1935 Residence (County) | Appanoose |
| Additional Details | |
| Occupation | Trucker |
| Industry | Private |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Trucker |
| Township / Ward | Centerville City |
| Est. Birth Year | ~1920 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ernest | Age | Birth yr |
|---|---|---|---|---|
| Louise Thomas | Daughter | — | 24 | ~1916 |
| Violet Thomas | Daughter | — | 1 | ~1939 |
| Albert Thomas | Head | — | 46 | ~1894 |
| Lula Thomas | Daughter | — | 5 | ~1935 |
| Eugene Thomas | Son | — | 18 | ~1922 |
| Francis Thomas | Son | — | 3 | ~1937 |
| Kenneth Thomas | Son | — | 2 | ~1938 |
| Wayne Thomas | Son | — | 11 | ~1929 |
| Marguerite Thomas | Daughter | — | 14 | ~1926 |
| Lelah Thomas | Spouse | — | 44 | ~1896 |
| Ernest Thomas | Son | — | 20 | ~1920 |
Census Appearances
1930
Appanoose, Iowa
Son, age 12
Appanoose, Iowa · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ernest L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Appanoose-County, Iowa
Son, age 20
Appanoose-County, Iowa · implied b. ~1920 — 11 household members
| Surname | Thomas |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Centerville City |
| 1935 Residence (County) | Appanoose |
| Occupation | Trucker |
| Industry | Private |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Ernest Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ernest Thomas
Son · 1940 · age 20 · b. ~1920 · Iowa
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Sibling
Wayne Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Thomas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Thomas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Thomas
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Thomas
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Thomas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Thomas
Sibling · 1940 · age 18
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 — Appanoose-County, Iowa
Open full size
1940 US Federal Census — Appanoose-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01137-00198)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lula Ewing | 31 | Daughter | Maid | Missouri |
| 2 | John Jr. Ewing | 12 | Grandson | — | Iowa |
| 3 | Mary Lou Ewing | 4 | Granddaughter | — | Iowa |
| 4 | Herbert Brown | 22 | Head | Miner | Missouri |
| 5 | Helen Brown | 22 | Wife | — | Iowa |
| 6 | Janice Brown | 1 | Daughter | — | Iowa |
| 7 | Howard J. Watson | 36 | Head | Manager - Grocery | Iowa |
| 8 | Berenice Watson | 36 | Wife | Bookkeeper | Iowa |
| 9 | Bert Thomas | 34 | Head | Cabinet Maker | Iowa |
| 10 | Mary Thomas | 28 | Wife | — | Iowa |
| 11 | Rose Thomas | 11 | Daughter | — | Iowa |
| 12 | Elaine Thomas | 9 | Daughter | — | Iowa |
| 13 | Delores Thomas | 6 | Daughter | — | Iowa |
| 14 | Donald Thomas | 4 | Son | — | Iowa |
| 15 | Bonnie Thomas | 2 | Daughter | — | Iowa |
| 16 | Fred Thomas | 0 | Son | — | Iowa |
| 17 | Albert Thomas | 46 | Head | Trucker | Missouri |
| 18 | Lelah Thomas | 44 | Wife | — | Iowa |
| 19 | Ernest Thomas THIS PERSON | 20 | Son | Trucker | Iowa |
| 20 | Eugene Thomas | 18 | Son | — | Iowa |
| 21 | Louise Thomas | 24 | Daughter | — | Iowa |
| 22 | Wayne Thomas | 11 | Son | — | Iowa |
| 23 | Kenneth Thomas | 2 | Son | — | Iowa |
| 24 | Marguerite Thomas | 14 | Daughter | — | Iowa |
| 25 | Francis Thomas | 3 | Son | — | Iowa |
| 26 | Lula Thomas | 5 | Daughter | — | Iowa |
| 27 | Violet Thomas | 1 | Daughter | — | Iowa |
| 28 | Squire H. Thomas | 79 | Head | Coal Miner | Missouri |
| 29 | Head Anders-Harrison | None | M | Coal Mine | — |
| 30 | Pauline Anders | 43 | Wife | Housewife | Iowa |
| 31 | Squire Dooley | 70 | Head | Miner | Iowa |
| 32 | Susie Dooley | 72 | Wife | Housewife | Iowa |
| 33 | Jas. D. Choate | 77 | Head | Miner | Iowa |
| 34 | Squire Marrow | 38 | Head | Miner | Iowa |
| 35 | Margaret Marrow | 27 | Wife | — | Iowa |
| 36 | Dorothy Marrow | 11 | Daughter | — | Iowa |
| 37 | Barbara Marrow | 9 | Daughter | — | Iowa |
| 38 | Gerald Marrow | 6 | Son | — | Iowa |
| 39 | Donnie Marrow | 3 | Son | — | Iowa |
| 40 | Harry Anders | 45 | Head | Miner | Iowa |
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)