CS
Clarence Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Clarence Smith across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Elijah & Nellie — first a son (b.~1917), then head of a 11-person household.
Age 23
b. ~1917
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Smith |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Lab work |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 260 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Lab Work |
| Township / Ward | Louisville City |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Margaret Smith | Daughter | — | 3 | ~1937 |
| Eliza Smith | Daughter | — | 19 | ~1921 |
| Naomie Smith | Daughter | — | 12 | ~1928 |
| Eliza Smith | Head | — | 44 | ~1896 |
| Robert Smith | Son | — | 9 | ~1931 |
| Leroy Smith | Son | — | 14 | ~1926 |
| Edward Smith | Son | — | 4 | ~1936 |
| Frederick Smith | Son | — | 13 | ~1927 |
| Willie Smith | Son | — | 17 | ~1923 |
| Clarence Smith | Son | — | 23 | ~1917 |
| Nellie Smith | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 2
Jefferson, Kentucky · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Other, age 12
Jefferson, Kentucky · implied b. ~1918 — 49 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Clarence |
| Relationship to Head | Ward |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Son, age 23
Jefferson-County, Kentucky · implied b. ~1917 — 11 household members
| Surname | Smith |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Lab work |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 260 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| 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 Clarence Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Elijah Smith (~0.92 confidence) and mother Nellie Smith (~0.92 confidence) and mother Eliza Smith (~0.92 confidence) and mother Alice Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Elijah Smith
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Nellie Smith
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Eliza Smith
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Alice Smith
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Smith
Son · 1940 · age 23 · b. ~1917 · Kentucky
★ You are viewing this record
Sibling
Leroy Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eliza Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Smith
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Smith
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Naomie Smith
Sibling · 1940 · age 12
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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01369-00423)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lucy Sampson | 45 | Lodger | Maid | Tennessee |
| 42 | Daniel Hickman | 45 | Head | Porter | Kentucky |
| 43 | Mamie Hickman | 41 | Wife | — | Kentucky |
| 44 | John D. Merman | 70 | Head | Laborer | Kentucky |
| 45 | Roland Hopkins | 36 | Head | Repairman | Kentucky |
| 46 | Ellen O. Hopkins | 34 | Wife | Maid | Alabama |
| 47 | Ella Mae Pitts | 12 | Stepdaughter | — | Alabama |
| 48 | Eliza Smith | 44 | Head | Street Cleaning | Kentucky |
| 49 | Nellie Smith | 44 | Wife | — | Kentucky |
| 50 | Clarence Smith THIS PERSON | 23 | Son | Lab Work | Kentucky |
| 51 | Eliza Smith | 19 | Daughter | — | Kentucky |
| 52 | Willie Smith | 17 | Son | Furnaceman | Kentucky |
| 53 | Leroy Smith | 14 | Son | — | Kentucky |
| 54 | Frederick Smith | 13 | Son | — | Kentucky |
| 55 | Naomie Smith | 12 | Daughter | — | Kentucky |
| 56 | Robert Smith | 9 | Son | — | Kentucky |
| 57 | Edward Smith | 4 | Son | — | Kentucky |
| 58 | Margaret Smith | 3 | Daughter | — | Kentucky |
| 59 | George Johnson | 45 | Head | Laborer | Kentucky |
| 60 | Fannie Johnson | 36 | Wife | — | Tennessee |
| 61 | Roosevelt Thomas | 32 | Head | Laborer | Indiana |
| 62 | Matti Bell Thomas | 31 | Wife | — | Kentucky |
| 63 | Betty Louise Thomas | 10 | Daughter | — | Kentucky |
| 64 | Herbert Davis | 38 | Head | Plasterer | Tennessee |
| 65 | Mary O. Davis | 35 | Wife | Maid | Kentucky |
| 66 | Dennis Dotson | 33 | Brother-in-law | Porter | Kentucky |
| 67 | William Vandee | 27 | Lodger | Waiter | Kentucky |
| 68 | Jack Tarpley | 32 | Head | Automobile Mechanic | Tennessee |
| 69 | Margaret Tarpley | 32 | Wife | Telephone Operator | Tennessee |
| 70 | William Tarpley | 9 | Son | — | Kentucky |
| 71 | Craig Bennett | 36 | Lodger | Welder | Kentucky |
| 72 | Helen Bennett | 24 | Lodger | — | Kentucky |
| 73 | William Bennett | 5 | Lodger | — | Kentucky |
| 74 | Deloris Bennett | 6 | Lodger | — | Kentucky |
| 75 | Joan Bennett | 1 | Lodger | — | Kentucky |
| 76 | Ralph O. Thomas | 29 | Head | Clerk (File) | Kentucky |
| 77 | Estelle Thomas | 29 | Wife | — | Kentucky |
| 78 | Ruby Thomas | 8 | Daughter | — | Kentucky |
| 79 | Stanley Thomas | 5 | Son | — | Kentucky |
| 80 | Earnest M. Bledsoe | 53 | Head | Section Hand | South Carolina |
Pedigree Summary
Clarence + 8 siblings
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)