LS
Leo Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kankakee-County, Illinois
Our Model Tree links this Leo Smith across the 1930 and 1940 US Censuses in Kankakee-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kankakee-County, Illinois |
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Chebanse |
| 1935 Residence (County) | Kankakee |
| Additional Details | |
| Occupation | Laborer |
| Industry | on farm |
| Class of Worker | NP |
| Hours Worked | 48 |
| Highest Grade | H-4 |
| 1935 Residence | Illinois |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Laborer |
| Township / Ward | Pembroke Township |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leo | Age | Birth yr |
|---|---|---|---|---|
| Edith Smith | Daughter | — | 17 | ~1923 |
| Edna Smith | Daughter | — | 16 | ~1924 |
| Verda Smith | Daughter | — | 9 | ~1931 |
| Roy Smith | Head | — | 58 | ~1882 |
| Lloyd Smith | Son | — | 13 | ~1927 |
| Donald Smith | Son | — | 11 | ~1929 |
| Leo Smith | Son | — | 20 | ~1920 |
| Ada Smith | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Kankakee, Illinois
Other, age 10
Kankakee, Illinois · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leo I |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Kankakee-County, Illinois
Son, age 20
Kankakee-County, Illinois · implied b. ~1920 — 8 household members
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Chebanse |
| 1935 Residence (County) | Kankakee |
| Occupation | Laborer |
| Industry | on farm |
| Class of Worker | NP |
| Hours Worked | 48 |
| Highest Grade | H-4 |
| 1935 Residence | Illinois |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Leo Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leo Smith
Son · 1940 · age 20 · b. ~1920 · Illinois
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Sibling
Edith Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Smith
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Verda Smith
Sibling · 1940 · age 9
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 — Kankakee-County, Illinois
Open full size
1940 US Federal Census — Kankakee-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00824-00664)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emmet Parrish | 33 | Son | Farmer | Illinois |
| 42 | R. V. Parrish | 50 | Head | Farmer | Indiana |
| 43 | Bernice Parrish | 46 | Wife | — | Indiana |
| 44 | Duane Parrish | 15 | Son | Laborer | Illinois |
| 45 | Lester Parrish | 13 | Son | — | Illinois |
| 46 | Lloyd Parrish | 13 | Son | — | Illinois |
| 47 | H. S. Shores | 65 | Head | — | Indiana |
| 48 | Bernard Shores | 16 | Son | — | Indiana |
| 49 | Roy D. Smith | 58 | Head | Farmer | Illinois |
| 50 | Ada Smith | 44 | Wife | — | Kansas |
| 51 | Leo Smith THIS PERSON | 20 | Son | Laborer | Kansas |
| 52 | Edith Smith | 17 | Daughter | — | Missouri |
| 53 | Edna Smith | 16 | Daughter | — | Missouri |
| 54 | Lloyd Smith | 13 | Son | — | Missouri |
| 55 | Donald Smith | 11 | Son | — | Illinois |
| 56 | Verda Smith | 9 | Daughter | — | Illinois |
| 57 | Herbert Allen | 72 | Head | Farmer | Illinois |
| 58 | Frank P. Eichak | 46 | Head | Farmer | Illinois |
| 59 | William Glennon | 52 | Head | Farmer | Illinois |
| 60 | Ada Glennon | 50 | Wife | — | England |
| 61 | Robert Anderson | 17 | Foster son | — | Illinois |
| 62 | Fred Kuezkowski | 16 | Foster son | — | Illinois |
| 63 | Fred Kuezkowski | 11 | Foster son | — | Illinois |
| 64 | Charles Campbell | 54 | Head | Farmer | Michigan |
| 65 | Rose Campbell | 50 | Wife | — | Canada-Eng |
| 66 | Rose Speart | 11 | Daughter | — | Illinois |
| 67 | George D. George | 46 | Head | Laborer | Indiana |
| 68 | Viola George | 41 | Wife | — | Indiana |
| 69 | George Jr. George | 18 | Son | Laborer | Indiana |
| 70 | Martha George | 16 | Daughter | — | Indiana |
| 71 | Bessie George | 14 | Daughter | — | Indiana |
| 72 | Gertrude George | 11 | Daughter | — | Indiana |
| 73 | Freddie George | 8 | Son | — | Illinois |
| 74 | Lera George | 6 | Daughter | — | Illinois |
| 75 | Edith George | 3 | Daughter | — | Illinois |
| 76 | Auttie Decker | 44 | Head | Laborer | Kentucky |
| 77 | Mable Decker | 22 | Wife | — | Indiana |
| 78 | Alice Decker | 4 | Daughter | — | Illinois |
| 79 | Joseph Leclaire | 32 | Head | Manager | Illinois |
| 80 | Ruth Leclaire | 31 | Wife | — | 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)