HC
Harry Cook — 1930 US Census Record
Model Tree available1930 United States Federal Census · Douglas, Nebraska
Our Model Tree links this Harry Cook across the 1920, 1930 and 1940 US Censuses in Douglas, Nebraska (XGBoost, ~Confirmed), with identified parents Alfred & Bess — first a son (b.~1906), then head of a 5-person household.
Age 24
b. ~1906
Male
Son
Born: Nebraska
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Douglas, Nebraska |
| Surname | Cook |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Additional Details | |
| Occupation | Clerk |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Clerk |
| Township / Ward | Omaha City |
| Est. Birth Year | ~1906 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Alfred Cook | Head | — | 55 | ~1875 |
| Martha Cook | Daughter | — | 15 | ~1915 |
| Harry Cook | Son | — | 24 | ~1906 |
| Donald Cook | Son | — | 22 | ~1908 |
| Richard Cook | Son | — | 12 | ~1918 |
Census Appearances
1920
Douglas, Nebraska
Son, age 14
Douglas, Nebraska · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Harry E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Douglas, Nebraska
Son, age 24
Douglas, Nebraska · implied b. ~1906 — 5 household members
| Surname | Cook |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Occupation | Clerk |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Douglas-County, Nebraska
Head, age 32
Douglas-County, Nebraska · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Harald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Omaha City |
| 1935 Residence (County) | Douglas |
| Occupation | Freight Clerk |
| Industry | Trucking Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 960 |
| Highest Grade | No 2 |
| 1935 Residence | Same Place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Harry Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alfred Cook (~0.92 confidence) and mother Bess Cook (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Cook
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Bess Cook
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Cook
Son · 1930 · age 24 · b. ~1906 · Nebraska
★ You are viewing this record
Sibling
Donald Cook
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Cook
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Cook
Sibling · 1930 · age 12
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 — Douglas, Nebraska
Open full size
1930 US Federal Census — Douglas, Nebraska
Page Contents
14 people indexed on this census page (ia:1930:15thcensus1278unit:0438)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | August Holdorf | 53 | Head | Laborer | Germany |
| 52 | Catherine Holdorf | 52 | Wife-H | — | Germany |
| 53 | Katherine Holdorf | 23 | Daughter | Stenographer | Iowa |
| 54 | Max Holdorf | 22 | Son | Supervisor | Iowa |
| 55 | Ann Holdorf | 21 | Daughter | — | Iowa |
| 56 | Albert Holdorf | 19 | Son | Assistant | So. Dakota |
| 57 | Peter Holdorf | 18 | Son | Office | So. Dakota |
| 58 | Alice Holdorf | 15 | Daughter | — | Nebraska |
| 59 | Clara Holdorf | 13 | Daughter | — | Nebraska |
| 60 | Alfred L. Cook | 55 | Head | Clerk | Iowa |
| 61 | Harry E. Cook THIS PERSON | 24 | Son | Clerk | Nebraska |
| 62 | Donald G. Cook | 22 | Son | Clerk | Nebraska |
| 63 | Martha G. Cook | 15 | Daughter | Stenographer | Nebraska |
| 64 | Richard B. Cook | 12 | Son | — | Nebraska |
Pedigree Summary
Harry + 3 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)