ET
Elmer Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clinton-County, Illinois
Our Model Tree links this Elmer Thompson across the 1930 and 1940 US Censuses in Clinton-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Illinois |
| Surname | Thompson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Carlyle City |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Occupation | Service Station Attendant |
| Industry | Gasoline Station |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 500 |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Service Station Attendant |
| Township / Ward | Carlyle 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Elmer | Age | Birth yr |
|---|---|---|---|---|
| Gene Thompson | Son | — | 3 | ~1937 |
| Delores Thompson | Daughter | — | 11 | ~1929 |
| Walter Thompson | Head | — | 42 | ~1898 |
| Stella Thompson | Daughter | — | 18 | ~1922 |
| Catherine Thompson | Spouse | — | 38 | ~1902 |
| Elmer Thompson | Son | — | 20 | ~1920 |
| Joan Thompson | Daughter | — | 6 | ~1934 |
| Harry Thompson | Son | — | 16 | ~1924 |
| Helen Thompson | Daughter | — | 14 | ~1926 |
| Betty Thompson | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Clinton, Illinois
Son, age 10
Clinton, Illinois · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Clinton-County, Illinois
Son, age 20
Clinton-County, Illinois · implied b. ~1920 — 10 household members
| Surname | Thompson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Carlyle City |
| 1935 Residence (County) | Clinton |
| Occupation | Service Station Attendant |
| Industry | Gasoline Station |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 500 |
| Highest Grade | S 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 Elmer Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Elmer Thompson
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Joan Thompson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Thompson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stella Thompson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Thompson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Thompson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Thompson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Thompson
Sibling · 1940 · age 3
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 — Clinton-County, Illinois
Open full size
1940 US Federal Census — Clinton-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00770-00185)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kenneth Fern | 10 | Daughter | — | Illinois |
| 42 | Gaylon Fern | 8 | Son | — | Illinois |
| 43 | Kenneth Heberer | 32 | Head | Stacking Straw | Illinois |
| 44 | Velma Heberer | 23 | Wife | — | Illinois |
| 45 | Joyce May Heberer | 4 | Daughter | — | Illinois |
| 46 | Velma Heberer | 1 | Daughter | — | Illinois |
| 47 | Glen Helm | 38 | Head | Paper Maker | Illinois |
| 48 | Florence Helm | 38 | Wife | — | Illinois |
| 49 | Ruth Helm | 8 | Daughter | — | Illinois |
| 50 | Robert Shepherd | 30 | Head | Business Agent | Illinois |
| 51 | Marie Shepherd | 23 | Wife | — | Illinois |
| 52 | Patricia Shepherd | 2 | Daughter | — | Illinois |
| 53 | Walter Shepherd | 25 | Brother | Laborer | Illinois |
| 54 | Walter Thompson | 42 | Head | Trimmerman | Illinois |
| 55 | Catherine Thompson | 38 | Wife | — | Illinois |
| 56 | Elmer Thompson THIS PERSON | 20 | Son | Service Station Attendant | Illinois |
| 57 | Stella Thompson | 18 | Daughter | Stitcher | Illinois |
| 58 | Harry Thompson | 16 | Son | New Worker | Illinois |
| 59 | Helen Thompson | 14 | Daughter | — | Illinois |
| 60 | Delores Thompson | 11 | Daughter | — | Illinois |
| 61 | Betty Thompson | 9 | Daughter | — | Illinois |
| 62 | Joan Thompson | 6 | Daughter | — | Illinois |
| 63 | Gene Thompson | 3 | Son | — | Illinois |
| 64 | Frank Freice | 54 | Head | Engineer | Illinois |
| 65 | Elizabeth Freice | 53 | Wife | — | Illinois |
| 66 | Betty Freice | 14 | Daughter | — | Illinois |
| 67 | Shirley Freice | 8 | Daughter | — | Illinois |
| 68 | John Heberer | 55 | Head | — | Illinois |
| 69 | Roxie Heberer | 53 | Wife | — | Illinois |
| 70 | Elmer Boatright | 35 | Head | Oiler | Illinois |
| 71 | Bessie Boatright | 27 | Wife | — | Illinois |
| 72 | Harley Boatright | 10 | Son | — | Illinois |
| 73 | Frank Boatright | 8 | Son | — | Illinois |
| 74 | Ruth Boatright | 6 | Daughter | — | Illinois |
| 75 | Fern Boatright | 4 | Daughter | — | Illinois |
| 76 | Lloyd Stephenson | 30 | Head | Furnace Worker | Illinois |
| 77 | Ruby Stephenson | 32 | Wife | — | Illinois |
| 78 | Alice Stephenson | 10 | Daughter | — | Illinois |
| 79 | Florence Stephenson | 8 | Daughter | — | Illinois |
| 80 | Harold Stephenson | 5 | Son | — | 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)