BT
Betty Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Betty Thompson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Carl & Karl — first a daughter (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thompson |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bellevue Boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Saleswoman |
| Industry | Bakery Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 248 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Saleswoman |
| Township / Ward | Bellevue Boro |
| Est. Birth Year | ~1915 |
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 Betty | Age | Birth yr |
|---|---|---|---|---|
| Edith Thompson | Spouse | — | 57 | ~1883 |
| Jacquaine Thompson | Daughter | — | 16 | ~1924 |
| Betty Thompson | Daughter | — | 25 | ~1915 |
| Althea Thompson | Daughter | — | 32 | ~1908 |
| Joanne Thompson | Daughter | — | 17 | ~1923 |
| Carl Thompson | Head | — | 59 | ~1881 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 5
Allegheny, Pennsylvania · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Betty M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 15
Allegheny, Pennsylvania · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Betty B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| 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
Daughter, age 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 6 household members
| Surname | Thompson |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bellevue Boro |
| 1935 Residence (County) | Allegheny |
| Occupation | Saleswoman |
| Industry | Bakery Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 248 |
| Highest Grade | H 4 |
| 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 Betty Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Thompson (~0.92 confidence) and father Karl Thompson (~0.92 confidence) and father Earl Thompson (~0.92 confidence) and mother Edith Thompson (~0.92 confidence) and mother Edith Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Thompson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Karl Thompson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Earl Thompson
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Edith Thompson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Edith Thompson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Betty Thompson
Daughter · 1940 · age 25 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Joanne Thompson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Althea Thompson
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacquaine Thompson
Sibling · 1940 · age 16
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-t0627-03397-00691)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert M. Beatty | 51 | Head | Executive | Pennsylvania |
| 2 | Ethel M. Beatty | 51 | Wife | — | Pennsylvania |
| 3 | Lurting Beatty | 15 | Son | — | Pennsylvania |
| 4 | Robert Thompson | 74 | Head | Printer | Pennsylvania |
| 5 | Anna Thompson | 72 | Wife | — | Pennsylvania |
| 6 | Eugene Pyle | 58 | Head | — | Pennsylvania |
| 7 | Lewis Pyle | 26 | Son | File Clerk | Pennsylvania |
| 8 | William Rotharmel | 28 | Head | Mail Clerk | Pennsylvania |
| 9 | Dorothy Rotharmel | 27 | Wife | — | Pennsylvania |
| 10 | Daphne Jeffers | 50 | Head | — | Pennsylvania |
| 11 | Gertrude Jeffers | 25 | Daughter | Stenographer | Pennsylvania |
| 12 | Robert Jeffers | 23 | Son | Mail Clerk | Pennsylvania |
| 13 | Mary Jeffers | 72 | Mother | — | Pennsylvania |
| 14 | Murrell Pinkerton | 26 | Head | Stenographer | Pennsylvania |
| 15 | Betty Jane Pinkerton | 26 | Wife | Typist | Pennsylvania |
| 16 | Leo F. Ley | 65 | Head | Engraver | Pennsylvania |
| 17 | Margaret Ley | 60 | Wife | — | Pennsylvania |
| 18 | Joseph Ley | 21 | Son | Machinist | Pennsylvania |
| 19 | Salome Kaitree | 26 | Daughter | — | Pennsylvania |
| 20 | Clifford Kaitree | 24 | Son in law | Laborer | Pennsylvania |
| 21 | Morris Riffel | 68 | Head | Carpenter | France |
| 22 | Eleanor Riffel | 35 | Daughter | — | Pennsylvania |
| 23 | Clark Frederick | 28 | Head | Machinist | Pennsylvania |
| 24 | Elizabeth Frederick | 25 | Wife | Bookkeeper | Pennsylvania |
| 25 | Louis Henry | 44 | Head | Real Estate | Austria |
| 26 | Mary Henry | 42 | Wife | — | Austria |
| 27 | Emanuel Henry | 19 | Son | — | Pennsylvania |
| 28 | Margaret Henry | 18 | Daughter | — | Pennsylvania |
| 29 | Louis Jr. Henry | 13 | Son | — | Pennsylvania |
| 30 | John Butter | 68 | Head | Shipper | England |
| 31 | Alice Butter | 62 | Wife | — | Pennsylvania |
| 32 | Ethel Hastings | 24 | Maid | Maid | Pennsylvania |
| 33 | Lillie Shook | 61 | Lodger | Chiropractor | Pennsylvania |
| 34 | Mazie Clinton | 87 | Lodger | — | Pennsylvania |
| 35 | Carl Thompson | 59 | Head | Interviewer | Pennsylvania |
| 36 | Edith Thompson | 57 | Wife | — | Pennsylvania |
| 37 | Althea Thompson | 32 | Daughter | Saleswoman | Pennsylvania |
| 38 | Betty Thompson THIS PERSON | 25 | Daughter | Saleswoman | Pennsylvania |
| 39 | Joanne Thompson | 17 | Daughter | — | Pennsylvania |
| 40 | Jacquaine Thompson | 16 | Daughter | — | Pennsylvania |
Pedigree Summary
Betty + 3 siblings
Gen 1 · 5 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)