LS
Leona Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Leona Smith across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Ambrose & Celia — first a spouse (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Smith |
| Given Name | Leona |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mckeesport City |
| Est. Birth Year | ~1905 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leona | Age | Birth yr |
|---|---|---|---|---|
| Mildred Smith | Daughter | — | 8 | ~1932 |
| Mary Smith | Daughter | — | 10 | ~1930 |
| Dewit Smith | Head | — | 45 | ~1895 |
| Frank Shaw | Other | — | 14 | ~1926 |
| Delmar Smith | Son | — | 2 | ~1938 |
| Leona Smith | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 16
Allegheny, Pennsylvania · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leona |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 25
Allegheny, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | SMITH |
| Given Name | Leona |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 35
Allegheny-County, Pennsylvania · implied b. ~1905 — 6 household members
| Surname | Smith |
| Given Name | Leona |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Ambrose Smith (~0.92 confidence) and mother Celia Smith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ambrose Smith
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Celia Smith
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leona Smith
Spouse · 1940 · age 35 · b. ~1905 · Pennsylvania
★ 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03409-00442)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Oliver | 20 | Sister-in-law | Seamstress | Pennsylvania |
| 2 | John Kochuba | 37 | Head | Crane-Man | Pennsylvania |
| 3 | Olga Kochuba | 34 | Wife | — | Pennsylvania |
| 4 | John Jr. Kochuba | 12 | Son | — | Pennsylvania |
| 5 | Dewit Smith | 45 | Head | Machinist | Pennsylvania |
| 6 | Leona Smith THIS PERSON | 35 | Wife | — | Pennsylvania |
| 7 | Frank Shaw | 14 | Step-son | — | Pennsylvania |
| 8 | Mary Lou Smith | 10 | Daughter | — | Pennsylvania |
| 9 | Mildred Smith | 8 | Daughter | — | Pennsylvania |
| 10 | Delmar Smith | 2 | Son | — | Pennsylvania |
| 11 | Earl Detman | 43 | Head | Low-Class Assembly-Man | Pennsylvania |
| 12 | Blanche Detman | 42 | Wife | — | Pennsylvania |
| 13 | Martha Wandrei | 72 | Head | — | Germany |
| 14 | Edward Wandrei | 47 | Son | — | Germany |
| 15 | Henry Wandrei | 43 | Son | — | Germany |
| 16 | Guy Means | 32 | Head | Machine-Hand | Pennsylvania |
| 17 | Hazel Means | 52 | Mother | — | Pennsylvania |
| 18 | Herbert Means | 27 | Brother | Roll-Turner | Pennsylvania |
| 19 | Ruth Means | 25 | Sister | — | Pennsylvania |
| 20 | Elizabeth Rotzuck | 50 | Head | — | Pennsylvania |
| 21 | Alice Rotzuck | 21 | Daughter | Teacher | Pennsylvania |
| 22 | Joseph Thompson | 51 | Head | Pipe-Inspector | Pennsylvania |
| 23 | Margaret Thompson | 47 | Wife | — | Pennsylvania |
| 24 | William Rosengarthy | 71 | Head | — | Germany |
| 25 | Laura Rosengarthy | 69 | Wife | — | Germany |
| 26 | William A. Rosengarthy | 43 | Son | Cost Clerk | Pennsylvania |
| 27 | Laura A. Rosengarthy | 35 | Daughter | School Teacher | Pennsylvania |
| 28 | Gerald Mckenzie | 37 | Head | Welder | Pennsylvania |
| 29 | Gertrude Mckenzie | 36 | Wife | — | Pennsylvania |
| 30 | Robert Mckenzie | 14 | Son | — | Pennsylvania |
| 31 | Geraldine Mckenzie | 11 | Daughter | — | Pennsylvania |
| 32 | Charles Hamburger | 31 | Brother-in-law | Scrap-Boy | Pennsylvania |
| 33 | Michael Halescak | 45 | Head | Pipe Straightener | Poland |
| 34 | Regina Halescak | 21 | Daughter | Maid | Pennsylvania |
| 35 | Frank Halescak | 19 | Son | Laborer | Pennsylvania |
| 36 | Helen Halescak | 16 | Daughter | — | Pennsylvania |
| 37 | Catherine Halescak | 13 | Daughter | — | Pennsylvania |
| 38 | Bernice Halescak | 4 | Daughter | — | Pennsylvania |
| 39 | Mildred Vunovich | 63 | Head | — | Yugo-Slovakia |
| 40 | Boyd Vunovich | 26 | Son | Machine Hand | Pennsylvania |
Pedigree Summary
Leona
Gen 1 · 2 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)