OS
Oliver Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Spencer-County, Kentucky
Our Model Tree links this Oliver Smith across the 1920, 1930 and 1940 US Censuses in Spencer-County, Kentucky (XGBoost, ~Confirmed), with identified parents Lorenza & Lorenza — first a son (b.~1912), then head of a 8-person household.
Age 28
b. ~1912
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Spencer-County, Kentucky |
| Surname | Smith |
| Given Name | Oliver |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Farmer |
| Industry | Rented Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | Mag Dist No 3 Elk Creek |
| Est. Birth Year | ~1912 |
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 Oliver | Age | Birth yr |
|---|---|---|---|---|
| Oliver Smith | Son | — | 28 | ~1912 |
| Sherman Smith | Son | — | 4 | ~1936 |
| James Smith | Son | — | 15 | ~1925 |
| Russell Smith | Son | — | 20 | ~1920 |
| Winifred Smith | Son | — | 6 | ~1934 |
| Lorenza Smith | Head | — | 60 | ~1880 |
| Dorothy Smith | Daughter | — | 17 | ~1923 |
| Louise Smith | Daughter | — | 26 | ~1914 |
Census Appearances
1920
Spencer, Kentucky
Son, age 8
Spencer, Kentucky · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Oliver |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Spencer, Kentucky
Son, age 18
Spencer, Kentucky · implied b. ~1912 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Oliver |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Spencer-County, Kentucky
Son, age 28
Spencer-County, Kentucky · implied b. ~1912 — 8 household members
| Surname | Smith |
| Given Name | Oliver |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jefferson |
| Occupation | Farmer |
| Industry | Rented Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Oliver Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lorenza Smith (~0.92 confidence) and father Lorenza Smith (~0.92 confidence) and mother Zelma Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lorenza Smith
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Lorenza Smith
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Zelma Smith
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oliver Smith
Son · 1940 · age 28 · b. ~1912 · Kentucky
★ You are viewing this record
Sibling
James Smith
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Smith
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Smith
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Smith
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sherman Smith
Sibling · 1940 · age 4
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 — Spencer-County, Kentucky
Open full size
1940 US Federal Census — Spencer-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01357-00437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary B Hill | 10 | Daughter | — | Kentucky |
| 2 | George T Hill | 8 | Son | — | Kentucky |
| 3 | Bennie E Hill | 4 | Son | — | Kentucky |
| 4 | Doris M Hill | 3 | Daughter | — | Kentucky |
| 5 | Edward Hill | 0 | Son | — | Kentucky |
| 6 | Lorenza Smith | 60 | Head | — | Kentucky |
| 7 | Oliver Smith THIS PERSON | 28 | Son | Farmer | Kentucky |
| 8 | Louise Smith | 26 | Daughter | — | Kentucky |
| 9 | Russell Smith | 20 | Son | Farm | Kentucky |
| 10 | Dorothy Smith | 17 | Daughter | — | Kentucky |
| 11 | James B Smith | 15 | Son | — | Kentucky |
| 12 | Winifred Smith | 6 | Son | — | Kentucky |
| 13 | Sherman Smith | 4 | Son | — | Kentucky |
| 14 | Jesse T Hardin | 62 | Head | Farmer | Kentucky |
| 15 | Mary E Hardin | 57 | Wife | — | Kentucky |
| 16 | William Hardin | 17 | Son | Farm Laborer | Kentucky |
| 17 | Sara E Hardin | 15 | Daughter | — | Kentucky |
| 18 | Jesse L Hardin | 13 | Son | — | Kentucky |
| 19 | Elmer R Hardin | 3 | Grandson | — | Kentucky |
| 20 | Morrie T Benner | 71 | Head | — | Kentucky |
| 21 | Albert Helton | 30 | Head | Farmer | Kentucky |
| 22 | Flora Helton | 28 | Wife | — | Kentucky |
| 23 | Martha A Helton | 8 | Daughter | — | Kentucky |
| 24 | James H Helton | 6 | Son | — | Kentucky |
| 25 | Jessie E Helton | 4 | Son | — | Kentucky |
| 26 | Thomas R Helton | 0 | Son | — | Kentucky |
| 27 | Ernest Hedges | 47 | Head | Farmer | Kentucky |
| 28 | Elizabeth Hedges | 48 | Wife | — | Kentucky |
| 29 | Thomas Hilbert | 23 | Head | Farm Laborer | Kentucky |
| 30 | Mary D Hilbert | 18 | Wife | — | Kentucky |
| 31 | Sidney R Hilbert | 2 | Son | — | Kentucky |
| 32 | Gilbert Gissell | 33 | Head | Farm Laborer | Kentucky |
| 33 | Marjorie Gissell | 29 | Wife | — | Kentucky |
| 34 | Mary K Gissell | 12 | Daughter | — | Kentucky |
| 35 | Dorothy Gissell | 10 | Daughter | — | Kentucky |
| 36 | Joe A Gissell | 4 | Son | — | Kentucky |
| 37 | Robert Carpenter | 74 | Head | — | Kentucky |
| 38 | Hallie Carpenter | 72 | Wife | — | Kentucky |
| 39 | Joe Bradshaw | 23 | Hired hand | Farm Laborer | Kentucky |
| 40 | Herbert Howerton | 57 | Head | Farmer | Kentucky |
Pedigree Summary
Oliver + 6 siblings
Gen 1 · 3 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)