DC
Dorothy Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Douglas-County, Kansas
Our Model Tree links this Dorothy Cooper across the 1930 and 1940 US Censuses in Douglas-County, Kansas (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 10-person household.
Age 16
b. ~1924
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Kansas |
| Surname | Cooper |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Lawrence 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Rachel Cooper | Daughter | — | 12 | ~1928 |
| Edward Cooper | Son | — | 20 | ~1920 |
| Evelyn Cooper | Daughter | — | 15 | ~1925 |
| Edna Cooper | Spouse | — | 48 | ~1892 |
| Orrin Cooper | Head | — | 54 | ~1886 |
| Esther Cooper | Daughter | — | 18 | ~1922 |
| Fred Cooper | Son | — | 10 | ~1930 |
| Dorothy Cooper | Daughter | — | 16 | ~1924 |
| Jean Cooper | Daughter | — | 13 | ~1927 |
| Glenn Cooper | Son | — | 19 | ~1921 |
Census Appearances
1930
Douglas, Kansas
Daughter, age 6
Douglas, Kansas · implied b. ~1924 — 9 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 | Kansas |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Illinois |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Douglas-County, Kansas
Daughter, age 16
Douglas-County, Kansas · implied b. ~1924 — 10 household members
| Surname | Cooper |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Lawrence City |
| 1935 Residence (County) | Douglas |
| Class of Worker | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Cooper
Daughter · 1940 · age 16 · b. ~1924 · Kansas
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Sibling
Glenn Cooper
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Cooper
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rachel Cooper
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Cooper
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Cooper
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Cooper
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Cooper
Sibling · 1940 · age 13
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 — Douglas-County, Kansas
Open full size
1940 US Federal Census — Douglas-County, Kansas
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01229-00664)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice Lena Dietzel | 24 | Wife | — | Washington |
| 2 | Laura B. Rayhill | 80 | Head | — | Indiana |
| 3 | Martha Rayhill | 53 | Daughter | Mat Teacher | Missouri |
| 4 | Ira L. Seaman | 70 | Head | Operate Power Plant | Kansas |
| 5 | Mary Seaman | 65 | Wife | — | Kansas |
| 6 | Unnamed Infant Seaman | 0 | Daughter | — | Kansas |
| 7 | Orrin H. Cooper | 54 | Head | Baker | Nebraska |
| 8 | Edna Cooper | 48 | Wife | Baker | Illinois |
| 9 | Edward Cooper | 20 | Son | Mailer | Kansas |
| 10 | Glenn Cooper | 19 | Son | — | Kansas |
| 11 | Esther Mae Cooper | 18 | Daughter | — | Kansas |
| 12 | Dorothy Cooper THIS PERSON | 16 | Daughter | — | Kansas |
| 13 | Evelyn Cooper | 15 | Daughter | — | Kansas |
| 14 | Jean Cooper | 13 | Daughter | — | Kansas |
| 15 | Rachel Cooper | 12 | Daughter | — | Kansas |
| 16 | Fred Cooper | 10 | Son | — | Kansas |
| 17 | Ulysses Grant Mitchell | 67 | Head | Math Professor | Iowa |
| 18 | Lulu A. Mitchell | 65 | Wife | — | Kansas |
| 19 | Robert B. Oyler | 26 | Head | Attorney | Oklahoma |
| 20 | Corinne Oyler | 23 | Wife | Piano Teacher | Kansas |
| 21 | Lillie E. Brown | 73 | Head | — | Ohio |
| 22 | Arthur Gardner | 63 | Head | Dep. County Treasurer | Kansas |
| 23 | Clara B. Gardner | 54 | Wife | — | Kansas |
| 24 | Helen M. Gardner | 24 | Daughter | Cashier & Bookkeeper | Kansas |
| 25 | Maxine Schmitendorf | 19 | Niece | Typist | Kansas |
| 26 | Albert Anderson | 32 | Head | City Fireman | Kansas |
| 27 | Maxine Anderson | 27 | Wife | — | Kansas |
| 28 | Martha Anne Anderson | 5 | Daughter | — | Kansas |
| 29 | Patricia Anderson | 0 | Daughter | — | Kansas |
| 30 | Anna Watkins | 88 | Head | — | England |
| 31 | Katie Lane | 63 | Head | — | Illinois |
| 32 | Marian Lane | 38 | Daughter | Primary Teacher | Illinois |
| 33 | Dwight Lane | 29 | Son | Shoe Salesman | Kansas |
| 34 | Mark Lane | 27 | Son | Drug Clerk | Arkansas |
| 35 | Wendelin Simon | 66 | Head | Farmer | Kansas |
| 36 | Ida Simon | 65 | Wife | — | Kansas |
| 37 | Maurice Edron Mcgaugh | 32 | Head | Assistant Geography Instructor | Missouri |
| 38 | Ethel Mcgaugh | 32 | Wife | — | Kansas |
| 39 | Ethel Kelly | 54 | Head | — | Missouri |
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)