HC
Hazel Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Woodbury-County, Iowa
Our Model Tree links this Hazel Cook across the 1930 and 1940 US Censuses in Woodbury-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1910), then head of a 10-person household.
Age 30
b. ~1910
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Woodbury-County, Iowa |
| Surname | Cook |
| Given Name | Hazel M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Sioux City |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Robert Cook | Son | — | 4 | ~1936 |
| Jesse Cook | Head | — | 38 | ~1902 |
| Verna Cook | Daughter | — | 6 | ~1934 |
| Donald Cook | Son | — | 10 | ~1930 |
| Hazel Cook | Spouse | — | 30 | ~1910 |
| James Cook | Son | — | 13 | ~1927 |
| Clara Cook | Daughter | — | 11 | ~1929 |
| Jean Cook | Daughter | — | 8 | ~1932 |
| Virginia Cook | Daughter | — | ~1940 | |
| Ralph Cook | Son | — | 2 | ~1938 |
Census Appearances
1930
Woodbury, Iowa
Other, age 21
Woodbury, Iowa · implied b. ~1909 — 5 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 | Iowa |
| Age at First Marriage | 17 |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Woodbury-County, Iowa
Spouse, age 30
Woodbury-County, Iowa · implied b. ~1910 — 10 household members
| Surname | Cook |
| Given Name | Hazel M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux City |
| 1935 Residence (County) | Woodbury |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 30 · b. ~1910 · Iowa
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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 — Woodbury-County, Iowa
Open full size
1940 US Federal Census — Woodbury-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01215-00012)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William S. Rumbo | 32 | Head | — | Iowa |
| 42 | Manley C. Evans | 63 | Head | Bridge Builder | Tennessee |
| 43 | Docia Evans | 59 | Wife | — | Tennessee |
| 44 | Ted Hall | 71 | Head | — | Iowa |
| 45 | William Jacobs | 39 | Head | Sheet Metal | Iowa |
| 46 | Ben Johnson | 52 | Head | Pipe Layer | Nebraska |
| 47 | Sylvia Tenant | 53 | Head | Day Housework | Nebraska |
| 48 | Carleton C. Logue | 25 | Head | Laborer | Nebraska |
| 49 | Pearl A. Logue | 24 | Wife | — | Nebraska |
| 50 | Curtis Logue | 4 | Son | — | Iowa |
| 51 | John Logue | 1 | Son | — | Iowa |
| 52 | Jesse W. Cook | 38 | Head | Watchman | Missouri |
| 53 | Hazel M. Cook THIS PERSON | 30 | Wife | — | Iowa |
| 54 | James Cook | 13 | Son | — | Iowa |
| 55 | Clara Cook | 11 | Daughter | — | Iowa |
| 56 | Donald Cook | 10 | Son | — | Iowa |
| 57 | Jean Cook | 8 | Daughter | — | Iowa |
| 58 | Verna Cook | 6 | Daughter | — | Iowa |
| 59 | Robert Cook | 4 | Son | — | Iowa |
| 60 | Ralph Cook | 2 | Son | — | Iowa |
| 61 | Virginia Cook | 0 | Daughter | — | Iowa |
| 62 | Ord J. Logue | 50 | Head | — | Missouri |
| 63 | Corydon Logue | 22 | Son | Cement Mixer | Iowa |
| 64 | Emery Logue | 21 | Son | Furnace Helper | Iowa |
| 65 | Eilleen Logue | 15 | Daughter | — | Iowa |
| 67 | Steve Brienza | 65 | Head | Proprietor | Italy |
| 68 | Jennie Brienza | 65 | Wife | — | Italy |
| 69 | Antonetta Caggiano | 35 | Niece | Alterations | Italy |
| 70 | Frank Stabile | 44 | Head | Ham House | Italy |
| 71 | John Stabile | 18 | Son | Odd Jobs | Italy |
| 72 | Mary Stabile | 16 | Daughter | — | Iowa |
| 73 | Tony Stabile | 13 | Son | — | Iowa |
| 74 | Joseph Stabile | 12 | Son | — | Iowa |
| 75 | Patsy Stabile | 10 | Daughter | — | Iowa |
| 76 | Carl Stabile | 4 | Son | — | Iowa |
| 77 | Amelia Stabile | 37 | Wife | — | Italy |
| 78 | Pete Defazio | 46 | Head | Flagman | Italy |
| 79 | Mary Defazio | 35 | Wife | — | Italy |
| 80 | Rose Defazio | 16 | Daughter | — | Iowa |
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)