LS
Leona Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Leona Smith across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed), with identified parents Arthur & Clarence — first a daughter (b.~1908), then head of a 5-person household.
Age 32
b. ~1908
Female
Daughter
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Smith |
| Given Name | Leona |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | E. St. Louis |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | E St Louis |
| Est. Birth Year | ~1908 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leona | Age | Birth yr |
|---|---|---|---|---|
| Leona Smith | Daughter | — | 32 | ~1908 |
| Arthur Smith | Head | — | 57 | ~1883 |
| Shirley Smith | Other | — | 5 | ~1935 |
| Jean Smith | Other | — | 5 | ~1935 |
| Mary Smith | Spouse | — | 52 | ~1888 |
Census Appearances
1920
St Clair, …
Daughter, age 11
St Clair, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leona |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Daughter, age 21
St Clair, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leona A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| 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
St.-Clair-County, Illinois
Daughter, age 32
St.-Clair-County, Illinois · implied b. ~1908 — 5 household members
| Surname | Smith |
| Given Name | Leona |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | E. St. Louis |
| 1935 Residence (County) | St. Clair |
| Hours Worked | 0 |
| Highest Grade | No 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 Leona Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Smith (~0.92 confidence) and father Clarence Smith (~0.92 confidence) and father William Smith (~0.92 confidence) and mother Jessie Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Smith
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Clarence Smith
b. ~1884
Source father
● Household
· direct · ~0.92
Father
William Smith
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Jessie Smith
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leona Smith
Daughter · 1940 · age 32 · b. ~1908 · Illinois
★ 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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-00881-01027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mike Robert Berg | 27 | Head | Chauffeur | Illinois |
| 42 | Venita (X) Berg | 23 | Wife | — | Missouri |
| 43 | Robert Berg | 3 | Son | — | Illinois |
| 44 | Elizabeth Kasselbaum | 50 | Head | — | Illinois |
| 45 | Sam Lito | 35 | Head | Owner | Russia |
| 46 | Eva Lito | 35 | Wife | — | Russia |
| 47 | Sidney Lito | 12 | Son | — | Missouri |
| 48 | Thelma Lito | 6 | Daughter | — | Missouri |
| 49 | Rosalie Lito | 2 | Daughter | — | Missouri |
| 50 | August Miering | 34 | Head | Grower | Illinois |
| 51 | Mildred Miering | 35 | Wife | — | Kentucky |
| 52 | Caroline Miering | 6 | Daughter | — | Illinois |
| 53 | Mildred Miering | 1 | Daughter | — | Illinois |
| 54 | Emma Barton | 60 | Mother | — | Illinois |
| 55 | Rosetta Little | 75 | Head | Teacher | Illinois |
| 56 | Marion Little | 29 | Daughter | Teacher | Illinois |
| 57 | Mellbourn Gratrix | 37 | Boarder | Laborer | Illinois |
| 58 | Arthur Smith | 57 | Head | Butcher | Illinois |
| 59 | Mary (X) Smith | 52 | Wife | — | Illinois |
| 60 | Leona Smith THIS PERSON | 32 | Daughter | — | Illinois |
| 61 | Shirley Smith | 5 | Granddaughter | — | Illinois |
| 62 | Jean Smith | 5 | Granddaughter | — | Illinois |
| 65 | James Tannehill | 74 | Head | — | Illinois |
| 66 | Rachel Tannehill | 74 | Wife | — | Illinois |
| 67 | Clestine Deloloso | 66 | Head | — | Switzerland |
| 68 | Clestine Salel | 38 | Daughter | Stenographer | Missouri |
| 69 | Leo Salel | 37 | Son-in-law | Laborer | Missouri |
| 70 | Wayne Jackson | 39 | Daughter | — | Missouri |
| 71 | Vitus Jackson | 44 | Son-in-law | — | Missouri |
| 73 | Paul E. Miering | 40 | Head | Gardener | Illinois |
| 74 | Angeline Miering | 38 | Wife | — | Illinois |
| 75 | Marion Miering | 14 | Daughter | — | Illinois |
| 76 | Henry Miering | 42 | Head | Gardener | Illinois |
| 77 | Lillie Miering | 39 | Sister | Stenographer | Illinois |
| 78 | Kittie Miering | 28 | Sister | Saleslady | Illinois |
Pedigree Summary
Leona
Gen 1 · 6 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)