CT
Clara Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Clara Thompson across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thompson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Elizabeth Twp |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Industry | School |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Penna. |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Elizabeth Twp |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clara | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Thompson | Daughter | — | 16 | ~1924 |
| Edith Thompson | Daughter | — | 6 | ~1934 |
| Clara Thompson | Daughter | — | 12 | ~1928 |
| Emma Thompson | Daughter | — | 15 | ~1925 |
| David Thompson | Head | — | 43 | ~1897 |
| Charles Mccorkle | Other | — | 39 | ~1901 |
| Charles Thompson | Son | — | 18 | ~1922 |
| Donald Thompson | Son | — | 3 | ~1937 |
| Mary Thompson | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 2
Allegheny, Pennsylvania · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 12
Allegheny-County, Pennsylvania · implied b. ~1928 — 9 household members
| Surname | Thompson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Elizabeth Twp |
| 1935 Residence (County) | Allegheny |
| Industry | School |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Penna. |
| 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 Clara Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clara Thompson
Daughter · 1940 · age 12 · b. ~1928 · Pennsylvania
★ You are viewing this record
Sibling
Edith Thompson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thompson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Thompson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Thompson
Sibling · 1940 · age 18
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 — 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-t0627-03403-00426)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Franky Aries | 17 | Head | Labor | Pennsylvania |
| 42 | David Thompson | 43 | Head | Labor | Pennsylvania |
| 43 | Mary Thompson | 41 | Wife | — | Pennsylvania |
| 44 | Charles Thompson | 18 | Son | — | Pennsylvania |
| 45 | Dorothy Thompson | 16 | Daughter | — | Pennsylvania |
| 46 | Emma Thompson | 15 | Daughter | — | Pennsylvania |
| 47 | Clara Thompson THIS PERSON | 12 | Daughter | — | Pennsylvania |
| 48 | Edith Thompson | 6 | Daughter | — | Pennsylvania |
| 49 | Donald Thompson | 3 | Son | — | Pennsylvania |
| 50 | Charles Mccorkle | 39 | Brother | Miner | Pennsylvania |
| 51 | Jacob Lickler | 57 | Head | Miner | Pennsylvania |
| 52 | Mary Lickler | 41 | Wife | — | Pennsylvania |
| 53 | Hugh Lickler | 24 | Son | Laborer | Pennsylvania |
| 54 | Robert Wood | 63 | Head | Miner | Pennsylvania |
| 55 | Mary Wood | 60 | Wife | — | Pennsylvania |
| 56 | Albert Ward | 31 | Son | Engineer | Pennsylvania |
| 57 | Ray Ward | 25 | Son | — | Pennsylvania |
| 58 | Fred Ward | 21 | Son | Labor | Pennsylvania |
| 59 | Savino Genessi | 47 | Head | Miner | Italy |
| 60 | Ella Genessi | 47 | Wife | — | Italy |
| 61 | Robert Genessi | 24 | Son | Post Master | Pennsylvania |
| 62 | Ernest Genessi | 21 | Daughter | Clerk | Pennsylvania |
| 63 | Mary Genessi | 19 | Daughter | — | Pennsylvania |
| 64 | Celesta Yom | 28 | Daughter | — | Pennsylvania |
| 65 | Joseph Heppy | 37 | Head | Miner | Pennsylvania |
| 66 | Mary Heppy | 41 | Wife | — | Pennsylvania |
| 67 | William Heppy | 12 | Son | — | Pennsylvania |
| 68 | Gloria Heppy | 10 | Daughter | — | Pennsylvania |
| 69 | Josephine Heppy | 7 | Daughter | — | Pennsylvania |
| 70 | Joseph Jr. Heppy | 5 | Son | — | Pennsylvania |
| 71 | Joseph Wozniak | 53 | Head | Miner | Poland |
| 72 | Emma Wozniak | 46 | Wife | — | Poland |
| 73 | Victor Wozniak | 24 | Son | — | Pennsylvania |
| 74 | Walter Wozniak | 22 | Son | — | Pennsylvania |
| 75 | Cecelia Wozniak | 20 | Daughter | — | Pennsylvania |
| 76 | George J. Nehila | 43 | Head | Miner | Pennsylvania |
| 77 | Mary Nehila | 40 | Wife | — | Pennsylvania |
| 78 | Steve Nehila | 18 | Son | — | Pennsylvania |
| 79 | Martha Nehila | 17 | Daughter | — | Pennsylvania |
| 80 | Elizabeth Nehila | 16 | Daughter | — | Pennsylvania |
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)