LS
Leo Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Oregon-County, Missouri
Our Model Tree links this Leo Smith across the 1920, 1930 and 1940 US Censuses in Oregon-County, Missouri (XGBoost, ~Confirmed), with identified parents Harvey & Ella — first a head (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Oregon-County, Missouri |
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Oregon |
| Additional Details | |
| Occupation | Common Labor |
| Industry | Construction |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | Hs 5 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Common Labor |
| Township / Ward | Thayer |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leo | Age | Birth yr |
|---|---|---|---|---|
| Leo Smith | Head | — | 23 | ~1917 |
| Robbie Smith | Son | — | ~1940 | |
| Mildred Smith | Spouse | — | 20 | ~1920 |
Census Appearances
1920
Oregon, Missouri
Son, age 1
Oregon, Missouri · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Oregon, Missouri
Son, age 12
Oregon, Missouri · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Oregon-County, Missouri
Head, age 23
Oregon-County, Missouri · implied b. ~1917 — 3 household members
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Oregon |
| Occupation | Common Labor |
| Industry | Construction |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | Hs 5 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harvey Smith (~0.92 confidence) and mother Ella Smith (~0.92 confidence) and father Harvie Smith (~0.92 confidence) and mother Ella Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harvey Smith
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Ella Smith
b. ~1899
Source mother
● Household
· direct · ~0.92
Father
Harvie Smith
b. ~1900
Source father
● Household
· direct · ~0.92
Mother
Ella Smith
b. ~1902
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leo Smith
Head · 1940 · age 23 · b. ~1917 · Missouri
★ 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 — Oregon-County, Missouri
Open full size
1940 US Federal Census — Oregon-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02134-01053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Johnnie Smith | 18 | Son | Common Labor | Missouri |
| 42 | Ethel Smith | 15 | Daughter | — | Missouri |
| 43 | Nova Smith | 13 | Daughter | — | Missouri |
| 44 | Henry Smith | 8 | Son | — | Missouri |
| 45 | Leo Smith THIS PERSON | 23 | Head | Common Labor | Missouri |
| 46 | Mildred R. Smith | 20 | Wife | — | Missouri |
| 47 | Robbie Leo Smith | 0 | Son | — | Missouri |
| 48 | William A. Davis | 38 | Head | Locomotive Fireman | Missouri |
| 49 | Mary C. Davis | 38 | Wife | — | Tennessee |
| 50 | Betty June Davis | 15 | Daughter | — | Missouri |
| 51 | Fleming G. Lark | 63 | Head | Secretary Manager | Arkansas |
| 52 | Nellie May Lark | 63 | Wife | — | Illinois |
| 53 | Walter L. Lark | 16 | Son | — | Missouri |
| 54 | Leander F. Conley | 63 | Lodger | Freight Agent | Tennessee |
| 55 | Henry J. Spradlin | 36 | Lodger | Cleaner & Dyer | Missouri |
| 56 | Walter R. Sanders | 50 | Head | Proprietor Owner | North Carolina |
| 57 | Eva Sanders | 46 | Wife | — | Missouri |
| 58 | John E. Parham | 72 | Head | Justice Of Peace | Tennessee |
| 59 | William M. Collier | 65 | Lodger | — | Arkansas |
| 60 | Clyde J. Hill | 34 | Head | Retail Ice Salesman | Missouri |
| 61 | Sylvia Marie Hill | 30 | Wife | — | Missouri |
| 62 | Clyda Marie Hill | 5 | Daughter | — | Missouri |
| 63 | Homer Lee Bower | 66 | Head | Proprietor Owner | Kentucky |
| 64 | Rowena Bower | 63 | Wife | Helper-Owner | Tennessee |
| 65 | J. Michael Eckert | 39 | Head | Owner Barber | Arkansas |
| 66 | Nela C. Eckert | 36 | Wife | — | Arkansas |
| 67 | Cynthia R. Norton | 68 | Head | — | Missouri |
| 68 | Hazel R. Norton | 29 | Daughter | — | Missouri |
| 69 | Goldie R. Norton | 27 | Daughter | — | Missouri |
| 70 | Clossie J. Jones | 26 | Daughter | — | Arkansas |
| 71 | Rosa E. Duke | 23 | Lodger | — | Missouri |
| 72 | Frank L. Sanders | 73 | Head | Transfer Man | Missouri |
| 73 | Elizabeth C. Sanders | 67 | Wife | — | Tennessee |
| 74 | Alice C. Sanders | 45 | Daughter | — | Missouri |
| 75 | Jewell J. Sanders | 38 | Son | Truck Driver | Missouri |
| 76 | Michael Jordan | 65 | Head | Horse & Cattle Dealer | Iowa |
| 77 | John Garner | 26 | Lodger | Tie Loader | Arkansas |
| 78 | Dorothy Garner | 19 | Lodger | — | Missouri |
| 79 | Lorenzo D. Davis | 81 | Head | — | Tennessee |
| 80 | Nancy Elizabeth Davis | 76 | Wife | — | Arkansas |
Pedigree Summary
Leo
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)