DC
Dorothy Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Dorothy Cooper across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed), with identified parents Roy & Roy — first a daughter (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Cooper |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Occupation | Clerk office |
| Industry | Western Union |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Clerk Office |
| Township / Ward | Toledo |
| Est. Birth Year | ~1914 |
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 |
|---|---|---|---|---|
| Mary Cooper | Spouse | — | 46 | ~1894 |
| Nannie Franklin | Other | — | 74 | ~1866 |
| Roy Cooper | Head | — | 49 | ~1891 |
| Dorothy Cooper | Daughter | — | 26 | ~1914 |
Census Appearances
1920
Lucas, Ohio
Daughter, age 6
Lucas, Ohio · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Lucas, Ohio
Other, age 16
Lucas, Ohio · implied b. ~1914 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Dorothy |
| Relationship to Head | Roomer |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Messenger |
| Industry | Western Union |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Daughter, age 26
Lucas-County, Ohio · implied b. ~1914 — 4 household members
| Surname | Cooper |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Occupation | Clerk office |
| Industry | Western Union |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 500 |
| Highest Grade | H 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 Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Roy Cooper (~0.92 confidence) and father Roy Cooper (~0.92 confidence) and mother Mary Cooper (~0.92 confidence) and mother Mary Cooper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roy Cooper
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Roy Cooper
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Mary Cooper
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Mary Cooper
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Cooper
Daughter · 1940 · age 26 · b. ~1914 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03258-00319)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Burnetta Andrew | 26 | Wife | — | Ohio |
| 2 | Burrel Don Andrew | 4 | Son | — | — |
| 3 | Bonnie Lou Andrew | 2 | Daughter | — | — |
| 4 | Timothy Sullivan | 40 | Head | Clerk | Ohio |
| 5 | Louise Sullivan | 37 | Wife | — | Tennessee |
| 6 | Joseph Faber | 55 | Head | Plumber | Ohio |
| 7 | Agnes Faber | 38 | Sister | Teacher | Ohio |
| 8 | William Leonhardt | 48 | Brother-in-law | Musician | Ohio |
| 9 | Joann Leonhardt | 16 | Niece | — | Ohio |
| 10 | Stephen Thomas | 6 | Nephew | — | Ohio |
| 11 | Frank Nadolny | 29 | Head | Butcher | Ohio |
| 12 | Christine Nadolny | 33 | Wife | — | Ohio |
| 13 | Walter Hauslein | 35 | Head | Bartender | Ohio |
| 14 | Leona Hauslein | 29 | Wife | Clerk | Ohio |
| 15 | Hattie Bogdanski | 57 | Head | — | Germany |
| 16 | William Bogdanski | 28 | Son | Labor | Ohio |
| 17 | Stanley Bogdanski | 25 | Son | Labor | Ohio |
| 18 | Frank Pistano | 50 | Head | Shoemaker | Italy |
| 19 | Minnie Pistano | 36 | Wife | — | Ohio |
| 20 | Frances Bringman | 19 | Daughter | — | Ohio |
| 21 | Clarence Long | 50 | Head | Proprietor | Ohio |
| 22 | Margaret Long | 40 | Wife | — | Ohio |
| 23 | Dorothy Long | 14 | Daughter | — | Ohio |
| 24 | Betty Jane Long | 12 | Daughter | — | Ohio |
| 25 | Frank Barraco | 41 | Head | Shoemaker | Italy |
| 26 | Mary Barraco | 31 | Wife | — | Kentucky |
| 27 | Casper Barraco | 10 | Son | — | Ohio |
| 28 | Dina Miller | 56 | Mother-in-law | — | Kentucky |
| 29 | Helen Pfleghaar | 38 | Head | Teacher | Ohio |
| 30 | Bess Libron | 58 | Head | Clerk Mail | Ohio |
| 31 | Ann Manion | 56 | Lodger | Fitter | Ohio |
| 32 | Loretta Darvey | 37 | Head | Office Clerk | Ohio |
| 33 | Elmer Snyder | 22 | Head | Salesman | Ohio |
| 34 | Delores Snyder | 22 | Wife | Clerk | Ohio |
| 35 | Roy Cooper | 49 | Head | Caretaker | Ohio |
| 36 | Mary Cooper | 46 | Wife | — | Ohio |
| 37 | Dorothy Cooper THIS PERSON | 26 | Daughter | Clerk Office | Ohio |
| 38 | Nannie Franklin | 74 | Mother-in-law | — | Ohio |
| 39 | Fredrick Miller | 25 | Head | Finisher | Ohio |
| 40 | Thelma Miller | 24 | Wife | Nurse | Ohio |
Pedigree Summary
Dorothy
Gen 1 · 4 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)