HC
Hazel Cook — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Hazel Cook across the 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 6
b. ~1924
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Cook |
| Given Name | Hazel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1924 |
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 1930 census.
| Name | Relation to head | Relative to Hazel | Age | Birth yr |
|---|---|---|---|---|
| Deane Cook | Spouse | — | 34 | ~1896 |
| Olie Cook | Head | — | 39 | ~1891 |
| Olie Cook | Son | — | 12 | ~1918 |
| Thelma Cook | Daughter | — | 14 | ~1916 |
| Mary Cook | Daughter | — | 15 | ~1915 |
| Reba Cook | Daughter | — | 1 | ~1929 |
| Hazel Cook | Daughter | — | 6 | ~1924 |
| Eleanor Cook | Daughter | — | 10 | ~1920 |
| Ray Cook | Son | — | 3 | ~1927 |
Census Appearances
1930
Polk, Iowa
Daughter, age 6
Polk, Iowa · implied b. ~1924 — 9 household members
| Surname | Cook |
| Given Name | Hazel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Other, age 18
Polk-County, Iowa · implied b. ~1922 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Helen Louise |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Booneville |
| 1935 Residence (County) | Dallas |
| Highest Grade | C 1 |
| 1935 Residence | Iowa |
| 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.
Show:
This person
Anchor record
Hazel Cook
Daughter · 1930 · age 6 · b. ~1924 · Iowa
★ You are viewing this record
Sibling
Eleanor Cook
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cook
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Olie Cook
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Cook
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Reba Cook
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Cook
Sibling · 1930 · age 3
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
1930 US Federal Census — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel677:0079)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gordon Hanson | 54 | Head | Laborer | Iowa |
| 2 | Mary Hanson | 34 | Wife | — | Iowa |
| 3 | Halsey Hanson | 12 | Son | — | Minnesota |
| 4 | Hazel Hanson | 9 | Daughter | — | Iowa |
| 5 | Olie Cook | 39 | Head | Laborer | Iowa |
| 6 | Deane Cook | 34 | Wife | Servant | Iowa |
| 7 | Mary Cook | 15 | Daughter | — | Iowa |
| 8 | Thelma Cook | 14 | Daughter | — | Iowa |
| 9 | Olie Cook | 12 | Son | — | Iowa |
| 10 | Eleanor Cook | 10 | Daughter | — | Iowa |
| 11 | Hazel Cook THIS PERSON | 6 | Daughter | — | Iowa |
| 12 | Ray Cook | 3 | Son | — | Iowa |
| 13 | Reba Cook | 1 | Daughter | — | Iowa |
| 14 | John Talley | 46 | Head | Laborer | Iowa |
| 15 | Rosa Talley | 25 | Wife | — | Iowa |
| 16 | Marguerite Brown | 9 | Step-Daughter | — | Iowa |
| 17 | Florence Brown | 8 | Step-Daughter | — | Iowa |
| 18 | Junior Brown | 7 | Step-Son | — | Iowa |
| 19 | Jesse Shepperd | 38 | Brother-in-law | Laborer | Missouri |
| 20 | Opal Shepperd | 17 | Sister-in-law | Servant | Iowa |
| 21 | William Neal | 68 | Head | Laborer | Ohio |
| 22 | Carrie Neal | 58 | Wife | Saleslady | Nebraska |
| 23 | Paul West | 26 | Head | Baker | Kansas |
| 24 | Margaret West | 23 | Wife | — | Iowa |
| 25 | Marie West | 4 | Daughter | — | Iowa |
| 26 | Bert Thomas | 74 | Head | Retired | Kansas |
| 27 | Ellen Thomas | 68 | Wife | — | Indiana |
| 28 | Charles W. Agan | 38 | Head | Baker | Indiana |
| 29 | Edith Agan | 37 | Wife | — | Iowa |
| 30 | Arlene Agan | 8 | Daughter | — | Iowa |
| 31 | Charles Agan | 5 | Son | — | Iowa |
| 32 | Pearl Briggle | 29 | Lodger | Packer | Iowa |
| 33 | Josephine Briggle | 9 | Lodger | — | Iowa |
| 34 | Edward Briggle | 7 | Lodger | — | Iowa |
| 35 | Albert C. Brugh | 59 | Head | Janitor | Pennsylvania |
| 36 | Florence Brugh | 38 | Wife | Presser | Iowa |
| 37 | Elizabeth Dunagan | 59 | Mother-in-law | Ironer | England |
| 38 | Kenneth James | 30 | Head | Mechanic | Iowa |
| 39 | Mary James | 31 | Wife | — | Iowa |
| 40 | Lucille James | 4 | Daughter | — | Iowa |
| 41 | John C. Doty | 62 | Head | Carpenter | Indiana |
| 42 | Lela Doty | 57 | Wife | — | Illinois |
| 43 | Eva Sowell | 24 | Daughter | — | Iowa |
| 44 | Horace Sowell | 23 | Son-in-law | Laborer | Iowa |
| 45 | Clyde Sowell | 2 | Grandson | — | Iowa |
| 46 | Richard Wright | 5 | Grandson | — | Iowa |
| 47 | Peter M. Cabey | 71 | Head | Miner | Iowa |
| 48 | Emma Cabey | 48 | Wife | Machine Operator | Iowa |
| 49 | Lewis Richey | 14 | Grandson | — | Iowa |
| 50 | Lorene Richey | 8 | Granddaughter | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)