HC
Hazel Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Hazel Cook across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1909), then head of a 10-person household.
Age 31
b. ~1909
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Cook |
| Given Name | Hazel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pitcairn Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pitcairn Borough |
| Est. Birth Year | ~1909 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Hazel | Age | Birth yr |
|---|---|---|---|---|
| Darrell Cook | Son | — | 4 | ~1936 |
| Curtis Cook | Son | — | 2 | ~1938 |
| Judith Cook | Daughter | — | 1 | ~1939 |
| Richard Cook | Son | — | 11 | ~1929 |
| Eugene Cook | Head | — | 31 | ~1909 |
| Wanda Cook | Daughter | — | 8 | ~1932 |
| Janet Cook | Daughter | — | 3 | ~1937 |
| Hazel Cook | Spouse | — | 31 | ~1909 |
| Eugene Cook | Son | — | 12 | ~1928 |
| Joan Cook | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Allegheny, Pennsylvania
Other, age 21
Allegheny, Pennsylvania · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Hazel |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 17 |
| 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 31
Allegheny-County, Pennsylvania · implied b. ~1909 — 10 household members
| Surname | Cook |
| Given Name | Hazel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pitcairn Borough |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 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 Hazel Cook across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Hazel Cook
Spouse · 1940 · age 31 · b. ~1909 · Pennsylvania
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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-t0627-03415-00177)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Pearce | 47 | Head | Auto Mechanic | Pennsylvania |
| 2 | Gertrude Pearce | 37 | Wife | — | Pennsylvania |
| 3 | John O Wigton | 56 | Head | Locomotive Engineer | Pennsylvania |
| 4 | Clara B Wigton | 49 | Wife | — | Pennsylvania |
| 5 | Harry Palmer | 39 | Son-in-law | Paint Inspector | New York |
| 6 | Martha C Palmer | 29 | Daughter | — | Pennsylvania |
| 7 | Martha Lynne Palmer | 2 | Granddaughter | — | Pennsylvania |
| 8 | Eugene Cook | 31 | Head | Electrical Lineman | Pennsylvania |
| 9 | Hazel Cook THIS PERSON | 31 | Wife | — | Pennsylvania |
| 10 | Eugene Jr. Cook | 12 | Son | — | Pennsylvania |
| 11 | Richard Cook | 11 | Son | — | Pennsylvania |
| 12 | Wanda Cook | 8 | Daughter | — | Pennsylvania |
| 13 | Joan Cook | 6 | Daughter | — | Pennsylvania |
| 14 | Darrell Cook | 4 | Son | — | Pennsylvania |
| 15 | Janet Cook | 3 | Daughter | — | Pennsylvania |
| 16 | Curtis Cook | 2 | Son | — | Pennsylvania |
| 17 | Judith Cook | 1 | Daughter | — | Pennsylvania |
| 18 | Walter Sword | 59 | Head | Carpenter | Scotland |
| 19 | Margaret Sword | 56 | Wife | — | Pennsylvania |
| 20 | Walter Mccluskey | 49 | Head | Brakeman | Pennsylvania |
| 21 | Clara Mccluskey | 43 | Wife | — | Pennsylvania |
| 22 | Charlotte M Mccluskey | 20 | Daughter | New Worker | Pennsylvania |
| 23 | Thomas A Mccluskey | 18 | Son | New Worker | Pennsylvania |
| 24 | Rosa Mccluskey | 17 | Daughter | Librarian | Pennsylvania |
| 25 | Mildred Mccluskey | 15 | Daughter | — | Pennsylvania |
| 26 | Isabelle Mccluskey | 13 | Daughter | — | Pennsylvania |
| 27 | Winifred Mccluskey | 12 | Daughter | — | Pennsylvania |
| 28 | Margaret Mccluskey | 10 | Daughter | — | Pennsylvania |
| 29 | Walter Jr. Mccluskey | 8 | Son | — | Pennsylvania |
| 30 | Grace Mccluskey | 7 | Daughter | — | Pennsylvania |
| 31 | Thomas Q Bannerman | 57 | Head | Tallyman | Pennsylvania |
| 32 | Harriet Bannerman | 38 | Wife | — | Pennsylvania |
| 33 | H Craig Best | 31 | Head | Electrician | Virginia |
| 34 | Margaret Best | 30 | Wife | — | Pennsylvania |
| 35 | William Best | 4 | Son | — | Pennsylvania |
| 36 | George Abell | 41 | Head | Electrical Engineer | Pennsylvania |
| 37 | Erma Abell | 38 | Wife | — | Pennsylvania |
| 38 | Donald Abell | 15 | Son | — | Pennsylvania |
| 39 | George L Jr Abell | 12 | Son | — | Pennsylvania |
| 40 | August Spock | 43 | Head | Pharmacist | 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)