DC
Dorothy Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Dorothy Cook across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents John & Katherine — first a daughter (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Cook |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Real Estate Saleswoman |
| Industry | Real Estate Agency |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Real Estate Saleswoman |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1903 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Sadie Cook | Head | — | 72 | ~1868 |
| Blanche Collins | Other | — | 45 | ~1895 |
| Paul Cook | Son | — | 40 | ~1900 |
| Dorothy Cook | Daughter | — | 37 | ~1903 |
Census Appearances
1920
Hamilton, Ohio
Daughter, age 16
Hamilton, Ohio · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Daughter, age 27
Hamilton, Ohio · implied b. ~1903 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Dorothy M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Salesman |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Daughter, age 37
Hamilton-County, Ohio · implied b. ~1903 — 4 household members
| Surname | Cook |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Occupation | Real Estate Saleswoman |
| Industry | Real Estate Agency |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Dorothy Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Cook (~0.92 confidence) and mother Katherine Cook (~0.92 confidence) and mother Sadie Cook (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Cook
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Katherine Cook
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Sadie Cook
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Cook
Daughter · 1940 · age 37 · b. ~1903 · Ohio
★ You are viewing this record
Sibling
Paul Cook
Sibling · 1940 · age 40
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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03188-00602)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rudolph S. Miller | 72 | Head | Superintendent | New York |
| 2 | Nell M. Miller | 63 | Wife | — | Indiana |
| 3 | William G. Heer | 42 | Head | Fireman | Ohio |
| 4 | Katie Heer | 73 | Mother | — | Ohio |
| 5 | Edna Kresin | 45 | Sister | — | Ohio |
| 6 | Alfred Rice | 37 | Head | Trouble Shooter | Kentucky |
| 7 | Rosella Rice | 38 | Wife | — | Kentucky |
| 8 | Roy Harris | 14 | Step son | — | Kentucky |
| 9 | Sadie D. Cook | 72 | Head | Real Estate Broker | Ohio |
| 10 | Paul Cook | 40 | Son | Real Estate Broker | Ohio |
| 11 | Dorothy Cook THIS PERSON | 37 | Daughter | Real Estate Saleswoman | Ohio |
| 12 | Blanche Collins | 45 | Niece | — | Ohio |
| 13 | Charles E. Elfers | 57 | Head | Fireman | Ohio |
| 14 | Agnes V. Elfers | 60 | Wife | Janitress | Ohio |
| 15 | Elizabeth Long | 65 | Head | — | Ohio |
| 16 | Walter C. Harridong | 47 | Head | Mail Carrier | Oklahoma |
| 17 | Grete Harridong | 50 | Wife | — | Germany |
| 18 | Clara Bauman | 62 | Head | — | Ohio |
| 19 | Carl K. Barker | 25 | Head | Mechanic | Ohio |
| 20 | Alice M. Barker | 26 | Wife | — | Ohio |
| 21 | Grace N. Hill | 65 | Head | Teacher | Ohio |
| 22 | Fred D. Bateman | 69 | Head | Assembler | Kentucky |
| 23 | Maine Bateman | 57 | Wife | — | Ohio |
| 24 | Clara L. O'Neill | 78 | Head | — | W. Virginia |
| 25 | Sylvester Schnuppel | 32 | Head | Secretary | Ohio |
| 26 | Charlotte Schnuppel | 34 | Wife | — | Ohio |
| 27 | Margaret S. Posen | 32 | Head | Med Doctor | Minnesota |
| 28 | Virginia Carnahan | 19 | Lodger | Secretary | Ohio |
| 29 | Isabella Ziemstein | 74 | Head | — | Ohio |
| 30 | Albert F. Senneman | 44 | Head | Mail Carrier | Ohio |
| 31 | Hazel M. Senneman | 39 | Wife | — | Ohio |
| 32 | Reuben W. Polter | 33 | Head | Traveling Salesman | Michigan |
| 33 | Doris Polter | 27 | Wife | — | Michigan |
| 34 | Danny Polter | 5 | Son | — | Michigan |
| 35 | Myrna Polter | 2 | Daughter | — | Illinois |
| 36 | Rinna M. Anderson | 68 | Head | — | Ohio |
| 37 | Walter M. Anderson | 33 | Son | Traveling Salesman | Ohio |
| 38 | Margaret Anderson | 31 | Daughter in law | — | W. Virginia |
| 39 | William M. Anderson | 1 | Grand son | — | Ohio |
| 40 | Viola B. Wilkins | 68 | Cousin | — | Ohio |
Pedigree Summary
Dorothy + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)