HC
Helen Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Helen Cook across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 13-person household.
Age 19
b. ~1921
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Cook |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Stowe Twp. |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | New worker |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | New Worker |
| Township / Ward | Stowe Twp |
| Est. Birth Year | ~1921 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Mary Cook | Daughter | — | 15 | ~1925 |
| Charles Cook | Son | — | 26 | ~1914 |
| Carmella Cook | Daughter | — | 14 | ~1926 |
| Grace Cook | Daughter | — | 11 | ~1929 |
| Helen Cook | Daughter | — | 19 | ~1921 |
| Leonard Cook | Son | — | 22 | ~1918 |
| Margaret Cook | Daughter | — | 2 | ~1938 |
| Grace Cook | Spouse | — | 51 | ~1889 |
| Rose Cook | Daughter | — | 21 | ~1919 |
| Louis Cook | Head | — | 54 | ~1886 |
| Evelyn Cook | Daughter | — | 15 | ~1925 |
| Adeline Cook | Daughter | — | 13 | ~1927 |
| Philomena Cook | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 8
Allegheny, Pennsylvania · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | District of Columbia |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 19
Allegheny-County, Pennsylvania · implied b. ~1921 — 13 household members
| Surname | Cook |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Stowe Twp. |
| 1935 Residence (County) | Allegheny |
| Occupation | New worker |
| Income (1939) | 0 |
| 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 Helen Cook across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Cook
Daughter · 1940 · age 19 · b. ~1921 · Pennsylvania
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Sibling
Carmella Cook
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cook
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Cook
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Cook
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Cook
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Cook
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Cook
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philomena Cook
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adeline Cook
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Cook
Sibling · 1940 · age 22
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-t0627-03418-00269)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Michael Heidlicks | 36 | Head | Car Repairer | Pennsylvania |
| 42 | Anna Heidlicks | 27 | Wife | Housewife | Pennsylvania |
| 43 | Basil Blumetty | 30 | Head | Iron Worker | Ohio |
| 44 | Catherine Blumetty | 21 | Wife | Housewife | Pennsylvania |
| 45 | Basil Jr. Blumetty | 2 | Son | — | Pennsylvania |
| 46 | Louis Cook | 54 | Head | Operator | Italy |
| 47 | Grace Cook | 51 | Wife | Housewife | Italy |
| 48 | Charles Cook | 26 | Son | Carpenter | Pennsylvania |
| 49 | Philomena Cook | 24 | Daughter | Wrapper | Pennsylvania |
| 50 | Leonard Cook | 22 | Son | Labor | Pennsylvania |
| 51 | Rose Cook | 21 | Daughter | New Worker | Pennsylvania |
| 52 | Helen Cook THIS PERSON | 19 | Daughter | New Worker | Pennsylvania |
| 53 | Mary Cook | 15 | Daughter | Hall Porter | Pennsylvania |
| 54 | Evelyn Cook | 15 | Daughter | — | Pennsylvania |
| 55 | Carmella Cook | 14 | Daughter | — | Pennsylvania |
| 56 | Adeline Cook | 13 | Daughter | — | Pennsylvania |
| 57 | Grace Cook | 11 | Daughter | — | Pennsylvania |
| 58 | Margaret Cook | 2 | Daughter | — | Pennsylvania |
| 59 | Ben Povilaikis | 63 | Head | Furnace Tender | Lithuania |
| 60 | Joseph Povilaikis | 25 | Son | Mill Wright H. | Pennsylvania |
| 61 | Jane Povilaikis | 18 | Daughter | Wrapper | Pennsylvania |
| 62 | James Vasal | 28 | Head | Labor | Ohio |
| 63 | Mary Vasal | 25 | Wife | Housewife | Pennsylvania |
| 64 | Rose Mary Vasal | 3 | Daughter | — | Pennsylvania |
| 65 | Mary Lou Vasal | 0 | Daughter | — | Pennsylvania |
| 66 | Alex Kasanovic | 70 | Head | Unable | Yugoslavia |
| 67 | Ella Kasanovic | 60 | Wife | Housewife | Yugoslavia |
| 68 | Nick Kasanovic | 27 | Son | Labor | Pennsylvania |
| 69 | Sam Kasanovic | 26 | Son | Contractor Helper | Pennsylvania |
| 70 | Pete Kasanovic | 21 | Son | Labor | Pennsylvania |
| 71 | Mary Kasanovic | 19 | Daughter | — | Pennsylvania |
| 72 | Nick Santillo | 43 | Head | Foreman | Italy |
| 73 | Lucy Santillo | 42 | Wife | Housewife | Italy |
| 74 | John Santillo | 22 | Son | Labor | Pennsylvania |
| 75 | Mary Santillo | 20 | Daughter | New Worker | Pennsylvania |
| 76 | Rose Santillo | 19 | Daughter | — | Pennsylvania |
| 77 | Anne Santillo | 17 | Daughter | — | Pennsylvania |
| 78 | Dominic Santillo | 16 | Son | — | Pennsylvania |
| 79 | Albert Santillo | 14 | Son | — | Pennsylvania |
| 80 | Joseph Santillo | 29 | Head | Labor | Pennsylvania |
Related Census Records
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)